TCPDUMP

moon# 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 ]

carol# /etc/init.d/iptables start 2> /dev/null
 * Starting firewall ...                                                  [ ok ]

moon# ipsec start
Starting strongSwan 4.2.17 IPsec [starter]...

carol# ipsec start
Starting strongSwan 4.2.17 IPsec [starter]...

carol# sleep 1

carol# ipsec up home
002 "home" #1: initiating Main Mode
104 "home" #1: STATE_MAIN_I1: initiate
003 "home" #1: ignoring Vendor ID payload [strongSwan 4.2.17]
003 "home" #1: received Vendor ID payload [XAUTH]
003 "home" #1: received Vendor ID payload [Dead Peer Detection]
106 "home" #1: STATE_MAIN_I2: sent MI2, expecting MR2
002 "home" #1: we have a cert and are sending it upon request
108 "home" #1: STATE_MAIN_I3: sent MI3, expecting MR3
002 "home" #1: Peer ID is ID_FQDN: '@moon.strongswan.org'
002 "home" #1: crl not found
002 "home" #1: certificate status unknown
002 "home" #1: ISAKMP SA established
004 "home" #1: STATE_MAIN_I4: ISAKMP SA established
002 "home" #2: initiating Quick Mode RSASIG+ENCRYPT+TUNNEL+PFS+UP {using isakmp#1}
112 "home" #2: STATE_QUICK_I1: initiate
002 "home" #2: sent QI2, IPsec SA established {ESP=>0x379627e7 <0x120d33f4}
004 "home" #2: STATE_QUICK_I2: sent QI2, IPsec SA established {ESP=>0x379627e7 <0x120d33f4}


TEST

moon# ipsec status | grep 'rw.*STATE_QUICK_R2.*IPsec SA established' [YES]
000 #2: "rw"[2] 192.168.0.100 STATE_QUICK_R2 (IPsec SA established); EVENT_SA_REPLACE in 1110s; newest IPSEC; eroute owner

carol# ipsec status | grep 'home.*STATE_QUICK_I2.*IPsec SA established' [YES]
000 #2: "home" STATE_QUICK_I2 (sent QI2, IPsec SA established); EVENT_SA_REPLACE in 933s; newest IPSEC; eroute owner

carol# ping -c 1 10.1.0.10 | grep '64 bytes from 10.1.0.10: icmp_seq=1' [YES]
64 bytes from 10.1.0.10: icmp_seq=1 ttl=63 time=0.704 ms

moon# killall tcpdump

moon# cat /tmp/tcpdump.log | grep 'IP carol.strongswan.org > moon.strongswan.org: ESP' [YES]
14:09:33.914274 IP carol.strongswan.org > moon.strongswan.org: ESP(spi=0x379627e7,seq=0x1), length 132

moon# cat /tmp/tcpdump.log | grep 'IP moon.strongswan.org > carol.strongswan.org: ESP' [YES]
14:09:33.914704 IP moon.strongswan.org > carol.strongswan.org: ESP(spi=0x120d33f4,seq=0x1), length 132


POST-TEST

moon# ipsec stop
Stopping strongSwan IPsec...

carol# ipsec stop
Stopping strongSwan IPsec...

moon# /etc/init.d/iptables stop 2> /dev/null
 * Stopping firewall ...                                                  [ ok ]

carol# /etc/init.d/iptables stop 2> /dev/null
 * Stopping firewall ...                                                  [ ok ]