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.
The authentication is based on X.509 certificates. In order to test the host-to-host tunnel
<b>moon</b> sends an IPv6 ICMP request to <b>sun</b> using the ping6 command.
The authentication is based on 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 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
strictcrlpolicy=no
crlcheckinterval=180
plutostart=no
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
strictcrlpolicy=no
crlcheckinterval=180
plutostart=no
conn %default
@@ -1,2 +1,4 @@
moon::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
sun::ipsec start
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.
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.
@@ -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
strictcrlpolicy=no
crlcheckinterval=180
plutostart=no
conn %default
@@ -25,4 +26,3 @@ conn host-host
right=PH_IP6_SUN
[email protected]
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
strictcrlpolicy=no
crlcheckinterval=180
plutostart=no
conn %default
@@ -4,3 +4,5 @@ alice::"ip route del fec2:\:/16 via fec1:\:1"
moon::"ip route del fec2:\:/16 via fec0:\:2"
sun::"ip route del fec1:\:/16 via fec0:\: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
sun::echo "1" >/proc/sys/net/ipv6/conf/all/forwarding
moon::/etc/init.d/iptables start 2> /dev/null
sun::/etc/init.d/iptables start 2> /dev/null
alice::"ip route add fec2:\:/16 via fec1:\:1"
moon::"ip route add fec2:\:/16 via fec0:\:2"
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 authentication is based on <b>X.509 certificates</b>.
In order to test the IPv6 ESP tunnel, <b>carol</b> sends an IPv6 ICMP request
to the client <b>alice</b> behind the gateway <b>moon</b> using the ping6
command.
The authentication is based on <b>X.509 certificates</b>. 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 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
leftcert=carolCert.pem
[email protected]
leftfirewall=yes
right=PH_IP6_MOON
rightnexthop=0::0
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
[email protected]
leftsubnet=fec1::/16
leftfirewall=yes
right=%any
rightnexthop=0::0
auto=add
+3
View File
@@ -1,3 +1,6 @@
moon::ipsec stop
carol::ipsec stop
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"
carol::"ip route add fec1:\:/16 via fec0:\:1"
carol::ipsec start
moon::ipsec start
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
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_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
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
}
+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"