added ikev1/virtual-ip scenario
This commit is contained in:
Andreas Steffen
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The roadwarriors <b>carol</b> and <b>dave</b> both set up a connection to gateway <b>moon</b>.
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The roadwarriors each unilaterally define a static virtual IP using the <b>leftsourceip</b>
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parameter. In order to detect potential address conflicts, the roadwarriors send
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their virtual IPs embedded in an IKEv1 Mode Config payload to <b>moon</b> for verification.
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In our scenario <b>moon</b> accepts the address choices thus allowing <b>carol</b> and
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<b>dave</b> to install their respective virtual IP addresses.
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<p>
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In order to test the tunnels both <b>carol</b> and <b>dave</b> ping the client <b>alice</b>
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behind the gateway <b>moon</b> as well as the inner interface of the gateway.
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The latter ping requires access to the gateway itself which is granted by the
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directive <b>lefthostaccess=yes</b>. The source IP of the two pings will be the virtual
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IP addresses <b>carol1</b> and <b>dave1</b>, respectively. Also thanks to the automatically
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configured source route entries, <b>moon</b> is able to ping both roadwarriors by using the
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established net-net IPsec tunnels.
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carol::ipsec status 2> /dev/null::home.*ESTABLISHED.*[email protected].*moon.strongswan.org::YES
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dave:: ipsec status 2> /dev/null::home.*ESTABLISHED.*[email protected].*moon.strongswan.org::YES
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moon:: ipsec status 2> /dev/null::rw\[1]: ESTABLISHED.*moon.strongswan.org.*[email protected]::YES
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moon:: ipsec status 2> /dev/null::rw\[2]: ESTABLISHED.*moon.strongswan.org.*[email protected]::YES
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carol::ipsec status 2> /dev/null::home.*INSTALLED, TUNNEL::YES
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dave:: ipsec status 2> /dev/null::home.*INSTALLED, TUNNEL::YES
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moon:: ipsec status 2> /dev/null::rw[{]1}.*INSTALLED, TUNNEL::YES
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moon:: ipsec status 2> /dev/null::rw[{]2}.*INSTALLED, TUNNEL::YES
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moon:: cat /var/log/daemon.log::peer requested virtual IP PH_IP_CAROL1::YES
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moon:: cat /var/log/daemon.log::peer requested virtual IP PH_IP_DAVE1::YES
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moon:: cat /var/log/daemon.log::assigning virtual IP PH_IP_CAROL1 to peer::YES
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moon:: cat /var/log/daemon.log::assigning virtual IP PH_IP_DAVE1 to peer::YES
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carol::ip addr list dev eth0::PH_IP_CAROL1::YES
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carol::ip route list table 220::src PH_IP_CAROL1::YES
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dave:: ip addr list dev eth0::PH_IP_DAVE1::YES
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dave:: ip route list table 220::src PH_IP_DAVE1::YES
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carol::ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_seq=1::YES
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carol::ping -c 1 PH_IP_MOON1::64 bytes from PH_IP_MOON1: icmp_seq=1::YES
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dave:: ping -c 1 PH_IP_ALICE::64 bytes from PH_IP_ALICE: icmp_seq=1::YES
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dave:: ping -c 1 PH_IP_MOON1::64 bytes from PH_IP_MOON1: icmp_seq=1::YES
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moon:: ping -c 1 PH_IP_CAROL1::64 bytes from PH_IP_CAROL1: icmp_seq=1::YES
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moon:: ping -c 1 PH_IP_DAVE1::64 bytes from PH_IP_DAVE1: icmp_seq=1::YES
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moon::tcpdump::IP carol.strongswan.org > moon.strongswan.org: ESP::YES
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moon::tcpdump::IP moon.strongswan.org > carol.strongswan.org: ESP::YES
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moon::tcpdump::IP dave.strongswan.org > moon.strongswan.org: ESP::YES
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moon::tcpdump::IP moon.strongswan.org > dave.strongswan.org: ESP::YES
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alice::tcpdump::IP carol1.strongswan.org > alice.strongswan.org: ICMP echo request::YES
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alice::tcpdump::IP alice.strongswan.org > carol1.strongswan.org: ICMP echo reply::YES
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alice::tcpdump::IP dave1.strongswan.org > alice.strongswan.org: ICMP echo request::YES
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alice::tcpdump::IP alice.strongswan.org > dave1.strongswan.org: ICMP echo reply::YES
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# /etc/ipsec.conf - strongSwan IPsec configuration file
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config setup
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conn %default
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ikelifetime=60m
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keylife=20m
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rekeymargin=3m
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keyingtries=1
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keyexchange=ikev1
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conn home
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left=PH_IP_CAROL
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leftsourceip=PH_IP_CAROL1
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leftcert=carolCert.pem
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[email protected]
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leftfirewall=yes
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right=PH_IP_MOON
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rightsubnet=10.1.0.0/16
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[email protected]
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auto=add
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# /etc/strongswan.conf - strongSwan configuration file
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charon {
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load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random nonce x509 revocation hmac xcbc stroke kernel-netlink socket-default updown
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}
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# /etc/ipsec.conf - strongSwan IPsec configuration file
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config setup
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conn %default
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ikelifetime=60m
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keylife=20m
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rekeymargin=3m
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keyingtries=1
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keyexchange=ikev1
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conn home
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left=PH_IP_DAVE
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leftsourceip=PH_IP_DAVE1
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leftcert=daveCert.pem
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[email protected]
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leftfirewall=yes
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right=PH_IP_MOON
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rightsubnet=10.1.0.0/16
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[email protected]
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auto=add
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# /etc/strongswan.conf - strongSwan configuration file
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charon {
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load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random nonce x509 revocation hmac xcbc stroke kernel-netlink socket-default updown
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}
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# /etc/ipsec.conf - strongSwan IPsec configuration file
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config setup
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conn %default
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ikelifetime=60m
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keylife=20m
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rekeymargin=3m
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keyingtries=1
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keyexchange=ikev1
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conn rw
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left=PH_IP_MOON
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leftcert=moonCert.pem
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[email protected]
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leftsubnet=10.1.0.0/16
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leftfirewall=yes
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lefthostaccess=yes
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right=%any
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rightsourceip=%config
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auto=add
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# /etc/strongswan.conf - strongSwan configuration file
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charon {
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load = curl aes des sha1 sha2 md5 pem pkcs1 gmp random nonce x509 revocation hmac xcbc stroke kernel-netlink socket-default updown
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}
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moon::ipsec stop
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carol::ipsec stop
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dave::ipsec stop
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moon::/etc/init.d/iptables stop 2> /dev/null
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carol::/etc/init.d/iptables stop 2> /dev/null
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dave::/etc/init.d/iptables stop 2> /dev/null
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moon::/etc/init.d/iptables start 2> /dev/null
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carol::/etc/init.d/iptables start 2> /dev/null
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dave::/etc/init.d/iptables start 2> /dev/null
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carol::ipsec start
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dave::ipsec start
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moon::ipsec start
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carol::sleep 1
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carol::ipsec up home
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dave::ipsec up home
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@@ -0,0 +1,21 @@
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#!/bin/bash
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#
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# This configuration file provides information on the
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# UML instances used for this test
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# All UML instances that are required for this test
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#
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UMLHOSTS="alice moon carol winnetou dave"
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# Corresponding block diagram
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#
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DIAGRAM="a-m-c-w-d.png"
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# UML instances on which tcpdump is to be started
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#
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TCPDUMPHOSTS="moon alice"
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# UML instances on which IPsec is started
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# Used for IPsec logging purposes
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#
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IPSECHOSTS="moon carol dave"
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