TCPDUMP sun# tcpdump -i eth0 not port ssh and not port domain and not arp > /tmp/tcpdump.log 2>&1 & PRE-TEST moon# /etc/init.d/iptables start 2> /dev/null * Caching service dependencies ... [ ok ] * Starting firewall ... [ ok ] sun# /etc/init.d/iptables start 2> /dev/null * Caching service dependencies ... [ ok ] * Starting firewall ... [ ok ] moon# ipsec start Starting strongSwan 4.2.10 IPsec [starter]... sun# ipsec start Starting strongSwan 4.2.10 IPsec [starter]... moon# sleep 2 moon# ipsec up host-host initiating IKE_SA host-host[1] to 192.168.0.2 generating IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) ] sending packet: from 192.168.0.1[500] to 192.168.0.2[500] received packet: from 192.168.0.2[500] to 192.168.0.1[500] parsed IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) CERTREQ ] received cert request for "C=CH, O=Linux strongSwan, CN=strongSwan Root CA" sending cert request for "C=CH, O=Linux strongSwan, CN=strongSwan Root CA" authentication of 'moon.strongswan.org' (myself) with RSA signature successful sending end entity cert "C=CH, O=Linux strongSwan, CN=moon.strongswan.org" establishing CHILD_SA host-host generating IKE_AUTH request 1 [ IDi CERT CERTREQ IDr AUTH N(USE_TRANSP) SA TSi TSr ] sending packet: from 192.168.0.1[500] to 192.168.0.2[500] received packet: from 192.168.0.2[500] to 192.168.0.1[500] parsed IKE_AUTH response 1 [ IDr CERT AUTH N(USE_TRANSP) SA TSi TSr N(AUTH_LFT) ] received end entity cert "C=CH, O=Linux strongSwan, CN=sun.strongswan.org" using certificate "C=CH, O=Linux strongSwan, CN=sun.strongswan.org" using trusted ca certificate "C=CH, O=Linux strongSwan, CN=strongSwan Root CA" checking certificate status of "C=CH, O=Linux strongSwan, CN=sun.strongswan.org" fetching crl from 'http://crl.strongswan.org/strongswan.crl' ... using trusted certificate "C=CH, O=Linux strongSwan, CN=strongSwan Root CA" crl correctly signed by "C=CH, O=Linux strongSwan, CN=strongSwan Root CA" crl is valid: until Jan 25 08:45:40 2009 certificate status is good authentication of 'sun.strongswan.org' with RSA signature successful scheduling reauthentication in 3268s maximum IKE_SA lifetime 3448s IKE_SA host-host[1] established between 192.168.0.1[moon.strongswan.org]...192.168.0.2[sun.strongswan.org] TEST moon# cat /var/log/daemon.log | grep 'parsed IKE_AUTH response.*N(USE_TRANSP)' [YES] Dec 26 10:57:31 moon charon: 14[ENC] parsed IKE_AUTH response 1 [ IDr CERT AUTH N(USE_TRANSP) SA TSi TSr N(AUTH_LFT) ] moon# ipsec status | grep 'host-host.*INSTALLED.*TRANSPORT' [YES] host-host{1}: INSTALLED, TRANSPORT, ESP SPIs: c6853622_i cd9bc076_o sun# ipsec status | grep 'host-host.*INSTALLED.*TRANSPORT' [YES] host-host{1}: INSTALLED, TRANSPORT, ESP SPIs: cd9bc076_i c6853622_o moon# ip xfrm state | grep 'mode transport' [YES] proto esp spi 0xc6853622 reqid 1 mode transport proto esp spi 0xcd9bc076 reqid 1 mode transport sun# ip xfrm state | grep 'mode transport' [YES] proto esp spi 0xcd9bc076 reqid 1 mode transport proto esp spi 0xc6853622 reqid 1 mode transport moon# ping -c 1 192.168.0.2 | grep '64 bytes from 192.168.0.2: icmp_seq=1' [YES] 64 bytes from 192.168.0.2: icmp_seq=1 ttl=64 time=2.54 ms sun# killall tcpdump sun# cat /tmp/tcpdump.log | grep 'IP moon.strongswan.org > sun.strongswan.org: ESP' [YES] 10:57:33.772014 IP moon.strongswan.org > sun.strongswan.org: ESP(spi=0xcd9bc076,seq=0x1), length 116 sun# cat /tmp/tcpdump.log | grep 'IP sun.strongswan.org > moon.strongswan.org: ESP' [YES] 10:57:33.772194 IP sun.strongswan.org > moon.strongswan.org: ESP(spi=0xc6853622,seq=0x1), length 116 POST-TEST moon# ipsec stop Stopping strongSwan IPsec... sun# ipsec stop Stopping strongSwan IPsec... moon# /etc/init.d/iptables stop 2> /dev/null * Stopping firewall ... [ ok ] sun# /etc/init.d/iptables stop 2> /dev/null * Stopping firewall ... [ ok ]