another four IPv6 scenarios fully demonstrate ip6tables firewall use

This commit is contained in:
Andreas Steffen
2007-11-08 11:59:29 +00:00
parent 5076770cf8
commit c65ad277c2
32 changed files with 1109 additions and 11 deletions
@@ -1,3 +1,5 @@
An IPv6 ESP connection between the hosts <b>moon</b> and <b>sun</b> is successfully set up. An IPv6 ESP connection between the hosts <b>moon</b> and <b>sun</b> is successfully set up.
The authentication is based on X.509 certificates. In order to test the host-to-host tunnel The authentication is based on X.509 certificates. Upon the successful establishment of
<b>moon</b> sends an IPv6 ICMP request to <b>sun</b> using the ping6 command. the IPsec tunnel, <b>leftfirewall=yes</b> automatically inserts ip6tables-based firewall
rules that let pass the tunneled traffic. In order to test both the host-to-host tunnel
and the firewall rules, <b>moon</b> sends an IPv6 ICMP request to <b>sun</b> using the ping6 command.
@@ -0,0 +1,107 @@
#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
opts="start stop reload"
depend() {
before net
need logger
}
start() {
ebegin "Starting firewall"
# enable IP forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# default policy is DROP
/sbin/iptables -P INPUT DROP
/sbin/iptables -P OUTPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/ip6tables -P INPUT DROP
/sbin/ip6tables -P OUTPUT DROP
/sbin/ip6tables -P FORWARD DROP
# allow esp
ip6tables -A INPUT -i eth0 -p 50 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p 50 -j ACCEPT
# allow IKE
ip6tables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
# allow MobIKE
ip6tables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
# allow last UDP fragment
ip6tables -A INPUT -i eth0 -p udp -m frag --fraglast -j ACCEPT
# allow ICMPv6 neighbor-solicitations
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
# allow ICMPv6 neighbor-advertisements
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
# allow crl fetch from winnetou
iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
# allow ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
# log dropped packets
ip6tables -A INPUT -j LOG --log-prefix " IN: "
ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
eend $?
}
stop() {
ebegin "Stopping firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
/sbin/ipables -F -t $a
/sbin/iptables -X -t $a
if [ $a == nat ]; then
/sbin/iptables -t nat -P PREROUTING ACCEPT
/sbin/iptables -t nat -P POSTROUTING ACCEPT
/sbin/iptables -t nat -P OUTPUT ACCEPT
elif [ $a == mangle ]; then
/sbin/iptables -t mangle -P PREROUTING ACCEPT
/sbin/iptables -t mangle -P INPUT ACCEPT
/sbin/iptables -t mangle -P FORWARD ACCEPT
/sbin/iptables -t mangle -P OUTPUT ACCEPT
/sbin/iptables -t mangle -P POSTROUTING ACCEPT
elif [ $a == filter ]; then
/sbin/ip6tables -t filter -P INPUT ACCEPT
/sbin/ip6tables -t filter -P FORWARD ACCEPT
/sbin/ip6tables -t filter -P OUTPUT ACCEPT
/sbin/iptables -t filter -P INPUT ACCEPT
/sbin/iptables -t filter -P FORWARD ACCEPT
/sbin/iptables -t filter -P OUTPUT ACCEPT
fi
done
eend $?
}
reload() {
ebegin "Flushing firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
done;
eend $?
start
}
@@ -2,6 +2,7 @@
config setup config setup
strictcrlpolicy=no strictcrlpolicy=no
crlcheckinterval=180
plutostart=no plutostart=no
conn %default conn %default
@@ -0,0 +1,107 @@
#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
opts="start stop reload"
depend() {
before net
need logger
}
start() {
ebegin "Starting firewall"
# enable IP forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# default policy is DROP
/sbin/iptables -P INPUT DROP
/sbin/iptables -P OUTPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/ip6tables -P INPUT DROP
/sbin/ip6tables -P OUTPUT DROP
/sbin/ip6tables -P FORWARD DROP
# allow esp
ip6tables -A INPUT -i eth0 -p 50 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p 50 -j ACCEPT
# allow IKE
ip6tables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
# allow MobIKE
ip6tables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
# allow last UDP fragment
ip6tables -A INPUT -i eth0 -p udp -m frag --fraglast -j ACCEPT
# allow ICMPv6 neighbor-solicitations
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
# allow ICMPv6 neighbor-advertisements
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
# allow crl fetch from winnetou
iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
# allow ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
# log dropped packets
ip6tables -A INPUT -j LOG --log-prefix " IN: "
ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
eend $?
}
stop() {
ebegin "Stopping firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
/sbin/ipables -F -t $a
/sbin/iptables -X -t $a
if [ $a == nat ]; then
/sbin/iptables -t nat -P PREROUTING ACCEPT
/sbin/iptables -t nat -P POSTROUTING ACCEPT
/sbin/iptables -t nat -P OUTPUT ACCEPT
elif [ $a == mangle ]; then
/sbin/iptables -t mangle -P PREROUTING ACCEPT
/sbin/iptables -t mangle -P INPUT ACCEPT
/sbin/iptables -t mangle -P FORWARD ACCEPT
/sbin/iptables -t mangle -P OUTPUT ACCEPT
/sbin/iptables -t mangle -P POSTROUTING ACCEPT
elif [ $a == filter ]; then
/sbin/ip6tables -t filter -P INPUT ACCEPT
/sbin/ip6tables -t filter -P FORWARD ACCEPT
/sbin/ip6tables -t filter -P OUTPUT ACCEPT
/sbin/iptables -t filter -P INPUT ACCEPT
/sbin/iptables -t filter -P FORWARD ACCEPT
/sbin/iptables -t filter -P OUTPUT ACCEPT
fi
done
eend $?
}
reload() {
ebegin "Flushing firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
done;
eend $?
start
}
@@ -2,6 +2,7 @@
config setup config setup
strictcrlpolicy=no strictcrlpolicy=no
crlcheckinterval=180
plutostart=no plutostart=no
conn %default conn %default
@@ -1,2 +1,4 @@
moon::ipsec stop moon::ipsec stop
sun::ipsec stop sun::ipsec stop
moon::/etc/init.d/iptables stop 2> /dev/null
sun::/etc/init.d/iptables stop 2> /dev/null
@@ -1,3 +1,5 @@
moon::/etc/init.d/iptables start 2> /dev/null
sun::/etc/init.d/iptables start 2> /dev/null
moon::ipsec start moon::ipsec start
sun::ipsec start sun::ipsec start
moon::sleep 2 moon::sleep 2
@@ -1,4 +1,6 @@
An IPv6 ESP tunnel connection between the gateways <b>moon</b> and <b>sun</b> is successfully set up. An IPv6 ESP tunnel connection between the gateways <b>moon</b> and <b>sun</b> is successfully set up.
It connects the two subnets hiding behind their respective gateways. The authentication is based on It connects the two subnets hiding behind their respective gateways. The authentication is based on
X.509 certificates. In order to test the net-to-net tunnel client <b>alice</b> behind <b>moon</b> X.509 certificates. Upon the successful establishment of the IPsec tunnel, <b>leftfirewall=yes</b>
automatically inserts ip6tables-based firewall rules that let pass the tunneled traffic.
In order to test both the net-to-net tunnel and the firewall rules, client <b>alice</b> behind <b>moon</b>
sends an IPv6 ICMP request to client <b>bob</b> behind <b>sun</b> using the ping6 command. sends an IPv6 ICMP request to client <b>bob</b> behind <b>sun</b> using the ping6 command.
@@ -0,0 +1,107 @@
#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
opts="start stop reload"
depend() {
before net
need logger
}
start() {
ebegin "Starting firewall"
# enable IP forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# default policy is DROP
/sbin/iptables -P INPUT DROP
/sbin/iptables -P OUTPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/ip6tables -P INPUT DROP
/sbin/ip6tables -P OUTPUT DROP
/sbin/ip6tables -P FORWARD DROP
# allow esp
ip6tables -A INPUT -i eth0 -p 50 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p 50 -j ACCEPT
# allow IKE
ip6tables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
# allow MobIKE
ip6tables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
# allow last UDP fragment
ip6tables -A INPUT -i eth0 -p udp -m frag --fraglast -j ACCEPT
# allow ICMPv6 neighbor-solicitations
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
# allow ICMPv6 neighbor-advertisements
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
# allow crl fetch from winnetou
iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
# allow ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
# log dropped packets
ip6tables -A INPUT -j LOG --log-prefix " IN: "
ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
eend $?
}
stop() {
ebegin "Stopping firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
/sbin/ipables -F -t $a
/sbin/iptables -X -t $a
if [ $a == nat ]; then
/sbin/iptables -t nat -P PREROUTING ACCEPT
/sbin/iptables -t nat -P POSTROUTING ACCEPT
/sbin/iptables -t nat -P OUTPUT ACCEPT
elif [ $a == mangle ]; then
/sbin/iptables -t mangle -P PREROUTING ACCEPT
/sbin/iptables -t mangle -P INPUT ACCEPT
/sbin/iptables -t mangle -P FORWARD ACCEPT
/sbin/iptables -t mangle -P OUTPUT ACCEPT
/sbin/iptables -t mangle -P POSTROUTING ACCEPT
elif [ $a == filter ]; then
/sbin/ip6tables -t filter -P INPUT ACCEPT
/sbin/ip6tables -t filter -P FORWARD ACCEPT
/sbin/ip6tables -t filter -P OUTPUT ACCEPT
/sbin/iptables -t filter -P INPUT ACCEPT
/sbin/iptables -t filter -P FORWARD ACCEPT
/sbin/iptables -t filter -P OUTPUT ACCEPT
fi
done
eend $?
}
reload() {
ebegin "Flushing firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
done;
eend $?
start
}
@@ -2,6 +2,7 @@
config setup config setup
strictcrlpolicy=no strictcrlpolicy=no
crlcheckinterval=180
plutostart=no plutostart=no
conn %default conn %default
@@ -25,4 +26,3 @@ conn host-host
right=PH_IP6_SUN right=PH_IP6_SUN
[email protected] [email protected]
auto=add auto=add
@@ -0,0 +1,107 @@
#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
opts="start stop reload"
depend() {
before net
need logger
}
start() {
ebegin "Starting firewall"
# enable IP forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# default policy is DROP
/sbin/iptables -P INPUT DROP
/sbin/iptables -P OUTPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/ip6tables -P INPUT DROP
/sbin/ip6tables -P OUTPUT DROP
/sbin/ip6tables -P FORWARD DROP
# allow esp
ip6tables -A INPUT -i eth0 -p 50 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p 50 -j ACCEPT
# allow IKE
ip6tables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
# allow MobIKE
ip6tables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
# allow last UDP fragment
ip6tables -A INPUT -i eth0 -p udp -m frag --fraglast -j ACCEPT
# allow ICMPv6 neighbor-solicitations
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
# allow ICMPv6 neighbor-advertisements
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
# allow crl fetch from winnetou
iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
# allow ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
# log dropped packets
ip6tables -A INPUT -j LOG --log-prefix " IN: "
ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
eend $?
}
stop() {
ebegin "Stopping firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
/sbin/ipables -F -t $a
/sbin/iptables -X -t $a
if [ $a == nat ]; then
/sbin/iptables -t nat -P PREROUTING ACCEPT
/sbin/iptables -t nat -P POSTROUTING ACCEPT
/sbin/iptables -t nat -P OUTPUT ACCEPT
elif [ $a == mangle ]; then
/sbin/iptables -t mangle -P PREROUTING ACCEPT
/sbin/iptables -t mangle -P INPUT ACCEPT
/sbin/iptables -t mangle -P FORWARD ACCEPT
/sbin/iptables -t mangle -P OUTPUT ACCEPT
/sbin/iptables -t mangle -P POSTROUTING ACCEPT
elif [ $a == filter ]; then
/sbin/ip6tables -t filter -P INPUT ACCEPT
/sbin/ip6tables -t filter -P FORWARD ACCEPT
/sbin/ip6tables -t filter -P OUTPUT ACCEPT
/sbin/iptables -t filter -P INPUT ACCEPT
/sbin/iptables -t filter -P FORWARD ACCEPT
/sbin/iptables -t filter -P OUTPUT ACCEPT
fi
done
eend $?
}
reload() {
ebegin "Flushing firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
done;
eend $?
start
}
@@ -2,6 +2,7 @@
config setup config setup
strictcrlpolicy=no strictcrlpolicy=no
crlcheckinterval=180
plutostart=no plutostart=no
conn %default conn %default
@@ -4,3 +4,5 @@ alice::"ip route del fec2:\:/16 via fec1:\:1"
moon::"ip route del fec2:\:/16 via fec0:\:2" moon::"ip route del fec2:\:/16 via fec0:\:2"
sun::"ip route del fec1:\:/16 via fec0:\:1" sun::"ip route del fec1:\:/16 via fec0:\:1"
bob::"ip route del fec1:\:/16 via fec2:\:1" bob::"ip route del fec1:\:/16 via fec2:\:1"
moon::/etc/init.d/iptables stop 2> /dev/null
sun::/etc/init.d/iptables stop 2> /dev/null
+2 -2
View File
@@ -1,5 +1,5 @@
moon::echo "1" >/proc/sys/net/ipv6/conf/all/forwarding moon::/etc/init.d/iptables start 2> /dev/null
sun::echo "1" >/proc/sys/net/ipv6/conf/all/forwarding sun::/etc/init.d/iptables start 2> /dev/null
alice::"ip route add fec2:\:/16 via fec1:\:1" alice::"ip route add fec2:\:/16 via fec1:\:1"
moon::"ip route add fec2:\:/16 via fec0:\:2" moon::"ip route add fec2:\:/16 via fec0:\:2"
sun::"ip route add fec1:\:/16 via fec0:\:1" sun::"ip route add fec1:\:/16 via fec0:\:1"
+6 -4
View File
@@ -1,5 +1,7 @@
The roadwarrior <b>carol</b> sets up a connection to gateway <b>moon</b>. The roadwarrior <b>carol</b> sets up a connection to gateway <b>moon</b>.
The authentication is based on <b>X.509 certificates</b>. The authentication is based on <b>X.509 certificates</b>. Upon the successful
In order to test the IPv6 ESP tunnel, <b>carol</b> sends an IPv6 ICMP request establishment of the IPsec tunnel, <b>leftfirewall=yes</b> automatically inserts
to the client <b>alice</b> behind the gateway <b>moon</b> using the ping6 ip6tables-based firewall rules that let pass the tunneled traffic.
command. In order to test both the IPv6 ESP tunnel and the firewall rules, <b>carol</b>
sends an IPv6 ICMP request to the client <b>alice</b> behind the gateway <b>moon</b>
using the ping6 command.
+100
View File
@@ -0,0 +1,100 @@
#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
opts="start stop reload"
depend() {
before net
need logger
}
start() {
ebegin "Starting firewall"
# enable IP forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# default policy is DROP
/sbin/iptables -P INPUT DROP
/sbin/iptables -P OUTPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/ip6tables -P INPUT DROP
/sbin/ip6tables -P OUTPUT DROP
/sbin/ip6tables -P FORWARD DROP
# allow esp
ip6tables -A INPUT -i eth0 -p 50 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p 50 -j ACCEPT
# allow IKE
ip6tables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
# allow MobIKE
ip6tables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
# allow ICMPv6 neighbor-solicitations
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
# allow ICMPv6 neighbor-advertisements
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
# allow crl fetch from winnetou
iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
# allow ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
eend $?
}
stop() {
ebegin "Stopping firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
/sbin/ipables -F -t $a
/sbin/iptables -X -t $a
if [ $a == nat ]; then
/sbin/iptables -t nat -P PREROUTING ACCEPT
/sbin/iptables -t nat -P POSTROUTING ACCEPT
/sbin/iptables -t nat -P OUTPUT ACCEPT
elif [ $a == mangle ]; then
/sbin/iptables -t mangle -P PREROUTING ACCEPT
/sbin/iptables -t mangle -P INPUT ACCEPT
/sbin/iptables -t mangle -P FORWARD ACCEPT
/sbin/iptables -t mangle -P OUTPUT ACCEPT
/sbin/iptables -t mangle -P POSTROUTING ACCEPT
elif [ $a == filter ]; then
/sbin/ip6tables -t filter -P INPUT ACCEPT
/sbin/ip6tables -t filter -P FORWARD ACCEPT
/sbin/ip6tables -t filter -P OUTPUT ACCEPT
/sbin/iptables -t filter -P INPUT ACCEPT
/sbin/iptables -t filter -P FORWARD ACCEPT
/sbin/iptables -t filter -P OUTPUT ACCEPT
fi
done
eend $?
}
reload() {
ebegin "Flushing firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
done;
eend $?
start
}
@@ -17,6 +17,7 @@ conn home
leftnexthop=0::0 leftnexthop=0::0
leftcert=carolCert.pem leftcert=carolCert.pem
[email protected] [email protected]
leftfirewall=yes
right=PH_IP6_MOON right=PH_IP6_MOON
rightnexthop=0::0 rightnexthop=0::0
rightsubnet=fec1::/16 rightsubnet=fec1::/16
+100
View File
@@ -0,0 +1,100 @@
#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
opts="start stop reload"
depend() {
before net
need logger
}
start() {
ebegin "Starting firewall"
# enable IP forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# default policy is DROP
/sbin/iptables -P INPUT DROP
/sbin/iptables -P OUTPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/ip6tables -P INPUT DROP
/sbin/ip6tables -P OUTPUT DROP
/sbin/ip6tables -P FORWARD DROP
# allow esp
ip6tables -A INPUT -i eth0 -p 50 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p 50 -j ACCEPT
# allow IKE
ip6tables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
# allow MobIKE
ip6tables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
# allow ICMPv6 neighbor-solicitations
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
# allow ICMPv6 neighbor-advertisements
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
# allow crl fetch from winnetou
iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
# allow ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
eend $?
}
stop() {
ebegin "Stopping firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
/sbin/ipables -F -t $a
/sbin/iptables -X -t $a
if [ $a == nat ]; then
/sbin/iptables -t nat -P PREROUTING ACCEPT
/sbin/iptables -t nat -P POSTROUTING ACCEPT
/sbin/iptables -t nat -P OUTPUT ACCEPT
elif [ $a == mangle ]; then
/sbin/iptables -t mangle -P PREROUTING ACCEPT
/sbin/iptables -t mangle -P INPUT ACCEPT
/sbin/iptables -t mangle -P FORWARD ACCEPT
/sbin/iptables -t mangle -P OUTPUT ACCEPT
/sbin/iptables -t mangle -P POSTROUTING ACCEPT
elif [ $a == filter ]; then
/sbin/ip6tables -t filter -P INPUT ACCEPT
/sbin/ip6tables -t filter -P FORWARD ACCEPT
/sbin/ip6tables -t filter -P OUTPUT ACCEPT
/sbin/iptables -t filter -P INPUT ACCEPT
/sbin/iptables -t filter -P FORWARD ACCEPT
/sbin/iptables -t filter -P OUTPUT ACCEPT
fi
done
eend $?
}
reload() {
ebegin "Flushing firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
done;
eend $?
start
}
@@ -18,6 +18,7 @@ conn rw
leftcert=moonCert.pem leftcert=moonCert.pem
[email protected] [email protected]
leftsubnet=fec1::/16 leftsubnet=fec1::/16
leftfirewall=yes
right=%any right=%any
rightnexthop=0::0 rightnexthop=0::0
auto=add auto=add
+3
View File
@@ -1,3 +1,6 @@
moon::ipsec stop moon::ipsec stop
carol::ipsec stop carol::ipsec stop
alice::"ip route del fec0:\:/16 via fec1:\:1" alice::"ip route del fec0:\:/16 via fec1:\:1"
carol::"ip route del fec1:\:/16 via fec0:\:1"
moon::/etc/init.d/iptables stop 2> /dev/null
carol::/etc/init.d/iptables stop 2> /dev/null
+3 -1
View File
@@ -1,5 +1,7 @@
moon::echo "1" >/proc/sys/net/ipv6/conf/all/forwarding moon::/etc/init.d/iptables start 2> /dev/null
carol::/etc/init.d/iptables start 2> /dev/null
alice::"ip route add fec0:\:/16 via fec1:\:1" alice::"ip route add fec0:\:/16 via fec1:\:1"
carol::"ip route add fec1:\:/16 via fec0:\:1"
carol::ipsec start carol::ipsec start
moon::ipsec start moon::ipsec start
carol::sleep 2 carol::sleep 2
@@ -0,0 +1,7 @@
The roadwarriors <b>carol</b> and <b>dave</b> set up an IPv6 connection each
to gateway <b>moon</b>. The authentication is based on <b>X.509 certificates</b>.
Upon the successful establishment of the IPv6 ESP tunnels, <b>leftfirewall=yes</b>
automatically inserts ip6tables-based firewall rules that let pass the tunneled traffic.
In order to test both tunnel and firewall, both <b>carol</b> and <b>dave</b> send
an IPv6 ICMP request to the client <b>alice</b> behind the gateway <b>moon</b>
using the ping6 command.
+10
View File
@@ -0,0 +1,10 @@
moon::ipsec statusall::rw.*ESTABLISHED::YES
carol::ipsec statusall::home.*ESTABLISHED::YES
dave::ipsec statusall::home.*ESTABLISHED::YES
carol::ping6 -c 1 ip6-alice.strongswan.org::64 bytes from ip6-alice.strongswan.org: icmp_seq=1::YES
dave::ping6 -c 1 ip6-alice.strongswan.org::64 bytes from ip6-alice.strongswan.org: icmp_seq=1::YES
moon::tcpdump::IP6 ip6-carol.strongswan.org > ip6-moon.strongswan.org: ESP::YES
moon::tcpdump::IP6 ip6-moon.strongswan.org > ip6-carol.strongswan.org: ESP::YES
moon::tcpdump::IP6 ip6-dave.strongswan.org > ip6-moon.strongswan.org: ESP::YES
moon::tcpdump::IP6 ip6-moon.strongswan.org > ip6-dave.strongswan.org: ESP::YES
+107
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@@ -0,0 +1,107 @@
#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
opts="start stop reload"
depend() {
before net
need logger
}
start() {
ebegin "Starting firewall"
# enable IP forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# default policy is DROP
/sbin/iptables -P INPUT DROP
/sbin/iptables -P OUTPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/ip6tables -P INPUT DROP
/sbin/ip6tables -P OUTPUT DROP
/sbin/ip6tables -P FORWARD DROP
# allow esp
ip6tables -A INPUT -i eth0 -p 50 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p 50 -j ACCEPT
# allow IKE
ip6tables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
# allow MobIKE
ip6tables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
# allow last UDP fragment
ip6tables -A INPUT -i eth0 -p udp -m frag --fraglast -j ACCEPT
# allow ICMPv6 neighbor-solicitations
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
# allow ICMPv6 neighbor-advertisements
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
# allow crl fetch from winnetou
iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
# allow ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
# log dropped packets
ip6tables -A INPUT -j LOG --log-prefix " IN: "
ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
eend $?
}
stop() {
ebegin "Stopping firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
/sbin/ipables -F -t $a
/sbin/iptables -X -t $a
if [ $a == nat ]; then
/sbin/iptables -t nat -P PREROUTING ACCEPT
/sbin/iptables -t nat -P POSTROUTING ACCEPT
/sbin/iptables -t nat -P OUTPUT ACCEPT
elif [ $a == mangle ]; then
/sbin/iptables -t mangle -P PREROUTING ACCEPT
/sbin/iptables -t mangle -P INPUT ACCEPT
/sbin/iptables -t mangle -P FORWARD ACCEPT
/sbin/iptables -t mangle -P OUTPUT ACCEPT
/sbin/iptables -t mangle -P POSTROUTING ACCEPT
elif [ $a == filter ]; then
/sbin/ip6tables -t filter -P INPUT ACCEPT
/sbin/ip6tables -t filter -P FORWARD ACCEPT
/sbin/ip6tables -t filter -P OUTPUT ACCEPT
/sbin/iptables -t filter -P INPUT ACCEPT
/sbin/iptables -t filter -P FORWARD ACCEPT
/sbin/iptables -t filter -P OUTPUT ACCEPT
fi
done
eend $?
}
reload() {
ebegin "Flushing firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
done;
eend $?
start
}
+23
View File
@@ -0,0 +1,23 @@
# /etc/ipsec.conf - strongSwan IPsec configuration file
config setup
crlcheckinterval=180
strictcrlpolicy=no
plutostart=no
conn %default
ikelifetime=60m
keylife=20m
rekeymargin=3m
keyingtries=1
conn home
left=PH_IP6_CAROL
leftcert=carolCert.pem
[email protected]
leftfirewall=yes
right=PH_IP6_MOON
[email protected]
rightsubnet=fec1::/16
keyexchange=ikev2
auto=add
+107
View File
@@ -0,0 +1,107 @@
#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
opts="start stop reload"
depend() {
before net
need logger
}
start() {
ebegin "Starting firewall"
# enable IP forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# default policy is DROP
/sbin/iptables -P INPUT DROP
/sbin/iptables -P OUTPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/ip6tables -P INPUT DROP
/sbin/ip6tables -P OUTPUT DROP
/sbin/ip6tables -P FORWARD DROP
# allow esp
ip6tables -A INPUT -i eth0 -p 50 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p 50 -j ACCEPT
# allow IKE
ip6tables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
# allow MobIKE
ip6tables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
# allow last UDP fragment
ip6tables -A INPUT -i eth0 -p udp -m frag --fraglast -j ACCEPT
# allow ICMPv6 neighbor-solicitations
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
# allow ICMPv6 neighbor-advertisements
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
# allow crl fetch from winnetou
iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
# allow ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
# log dropped packets
ip6tables -A INPUT -j LOG --log-prefix " IN: "
ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
eend $?
}
stop() {
ebegin "Stopping firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
/sbin/ipables -F -t $a
/sbin/iptables -X -t $a
if [ $a == nat ]; then
/sbin/iptables -t nat -P PREROUTING ACCEPT
/sbin/iptables -t nat -P POSTROUTING ACCEPT
/sbin/iptables -t nat -P OUTPUT ACCEPT
elif [ $a == mangle ]; then
/sbin/iptables -t mangle -P PREROUTING ACCEPT
/sbin/iptables -t mangle -P INPUT ACCEPT
/sbin/iptables -t mangle -P FORWARD ACCEPT
/sbin/iptables -t mangle -P OUTPUT ACCEPT
/sbin/iptables -t mangle -P POSTROUTING ACCEPT
elif [ $a == filter ]; then
/sbin/ip6tables -t filter -P INPUT ACCEPT
/sbin/ip6tables -t filter -P FORWARD ACCEPT
/sbin/ip6tables -t filter -P OUTPUT ACCEPT
/sbin/iptables -t filter -P INPUT ACCEPT
/sbin/iptables -t filter -P FORWARD ACCEPT
/sbin/iptables -t filter -P OUTPUT ACCEPT
fi
done
eend $?
}
reload() {
ebegin "Flushing firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
done;
eend $?
start
}
+23
View File
@@ -0,0 +1,23 @@
# /etc/ipsec.conf - strongSwan IPsec configuration file
config setup
crlcheckinterval=180
strictcrlpolicy=no
plutostart=no
conn %default
ikelifetime=60m
keylife=20m
rekeymargin=3m
keyingtries=1
conn home
left=PH_IP6_DAVE
leftcert=daveCert.pem
[email protected]
leftfirewall=yes
right=PH_IP6_MOON
[email protected]
rightsubnet=fec1::/16
keyexchange=ikev2
auto=add
+107
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@@ -0,0 +1,107 @@
#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
opts="start stop reload"
depend() {
before net
need logger
}
start() {
ebegin "Starting firewall"
# enable IP forwarding
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
# default policy is DROP
/sbin/iptables -P INPUT DROP
/sbin/iptables -P OUTPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/ip6tables -P INPUT DROP
/sbin/ip6tables -P OUTPUT DROP
/sbin/ip6tables -P FORWARD DROP
# allow esp
ip6tables -A INPUT -i eth0 -p 50 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p 50 -j ACCEPT
# allow IKE
ip6tables -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
# allow MobIKE
ip6tables -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
ip6tables -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
# allow last UDP fragment
ip6tables -A INPUT -i eth0 -p udp -m frag --fraglast -j ACCEPT
# allow ICMPv6 neighbor-solicitations
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
# allow ICMPv6 neighbor-advertisements
ip6tables -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
ip6tables -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
# allow crl fetch from winnetou
iptables -A INPUT -i eth0 -p tcp --sport 80 -s PH_IP_WINNETOU -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --dport 80 -d PH_IP_WINNETOU -j ACCEPT
# allow ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 22 -j ACCEPT
# log dropped packets
ip6tables -A INPUT -j LOG --log-prefix " IN: "
ip6tables -A OUTPUT -j LOG --log-prefix " OUT: "
eend $?
}
stop() {
ebegin "Stopping firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
/sbin/ipables -F -t $a
/sbin/iptables -X -t $a
if [ $a == nat ]; then
/sbin/iptables -t nat -P PREROUTING ACCEPT
/sbin/iptables -t nat -P POSTROUTING ACCEPT
/sbin/iptables -t nat -P OUTPUT ACCEPT
elif [ $a == mangle ]; then
/sbin/iptables -t mangle -P PREROUTING ACCEPT
/sbin/iptables -t mangle -P INPUT ACCEPT
/sbin/iptables -t mangle -P FORWARD ACCEPT
/sbin/iptables -t mangle -P OUTPUT ACCEPT
/sbin/iptables -t mangle -P POSTROUTING ACCEPT
elif [ $a == filter ]; then
/sbin/ip6tables -t filter -P INPUT ACCEPT
/sbin/ip6tables -t filter -P FORWARD ACCEPT
/sbin/ip6tables -t filter -P OUTPUT ACCEPT
/sbin/iptables -t filter -P INPUT ACCEPT
/sbin/iptables -t filter -P FORWARD ACCEPT
/sbin/iptables -t filter -P OUTPUT ACCEPT
fi
done
eend $?
}
reload() {
ebegin "Flushing firewall"
for a in `cat /proc/net/ip_tables_names`; do
/sbin/ip6tables -F -t $a
/sbin/ip6tables -X -t $a
done;
eend $?
start
}
+22
View File
@@ -0,0 +1,22 @@
# /etc/ipsec.conf - strongSwan IPsec configuration file
config setup
crlcheckinterval=180
strictcrlpolicy=no
plutostart=no
conn %default
ikelifetime=60m
keylife=20m
rekeymargin=3m
keyingtries=1
conn rw
left=PH_IP6_MOON
leftcert=moonCert.pem
[email protected]
leftsubnet=fec1::/16
leftfirewall=yes
right=%any
keyexchange=ikev2
auto=add
+9
View File
@@ -0,0 +1,9 @@
moon::ipsec stop
carol::ipsec stop
dave::ipsec stop
moon::/etc/init.d/iptables stop 2> /dev/null
carol::/etc/init.d/iptables stop 2> /dev/null
dave::/etc/init.d/iptables stop 2> /dev/null
alice::"ip route del fec0:\:/16 via fec1:\:1"
carol::"ip route del fec1:\:/16 via fec0:\:1"
dave::"ip route del fec1:\:/16 via fec0:\:1"
+12
View File
@@ -0,0 +1,12 @@
moon::/etc/init.d/iptables start 2> /dev/null
carol::/etc/init.d/iptables start 2> /dev/null
dave::/etc/init.d/iptables start 2> /dev/null
alice::"ip route add fec0:\:/16 via fec1:\:1"
carol::"ip route add fec1:\:/16 via fec0:\:1"
dave::"ip route add fec1:\:/16 via fec0:\:1"
moon::ipsec start
carol::ipsec start
dave::ipsec start
carol::sleep 1
carol::ipsec up home
dave::ipsec up home
+21
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@@ -0,0 +1,21 @@
#!/bin/bash
#
# This configuration file provides information on the
# UML instances used for this test
# All UML instances that are required for this test
#
UMLHOSTS="alice moon carol winnetou dave"
# Corresponding block diagram
#
DIAGRAM="a-m-c-w-d.png"
# UML instances on which tcpdump is to be started
#
TCPDUMPHOSTS="moon"
# UML instances on which IPsec is started
# Used for IPsec logging purposes
#
IPSECHOSTS="moon carol dave"