PRE-TEST moon# echo 1 > /proc/sys/net/ipv4/ip_forward carol# ipsec start Starting strongSwan 4.3.6 IPsec [starter]... moon# ipsec start Starting strongSwan 4.3.6 IPsec [starter]... carol# sleep 2 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] 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 003 "home" #1: ignoring informational payload, type INVALID_KEY_INFORMATION 010 "home" #1: STATE_MAIN_I3: retransmission; will wait 20s for response 003 "home" #1: next payload type of ISAKMP Hash Payload has an unknown value: 147 003 "home" #1: malformed payload in packet 003 "home" #1: discarding duplicate packet; already STATE_MAIN_I3 010 "home" #1: STATE_MAIN_I3: retransmission; will wait 40s for response 003 "home" #1: next payload type of ISAKMP Hash Payload has an unknown value: 141 003 "home" #1: malformed payload in packet 003 "home" #1: discarding duplicate packet; already STATE_MAIN_I3 031 "home" #1: max number of retransmissions (2) reached STATE_MAIN_I3. Possible authentication failure: no acceptable response to our first encrypted message TEST moon# cat /var/log/auth.log | grep 'path length of 2 violates constraint of 1' [YES] Feb 27 23:19:41 moon pluto[19325]: "duck"[1] 192.168.0.100 #1: path length of 2 violates constraint of 1 Feb 27 23:19:50 moon pluto[19325]: "duck"[1] 192.168.0.100 #1: path length of 2 violates constraint of 1 Feb 27 23:20:11 moon pluto[19325]: "duck"[1] 192.168.0.100 #1: path length of 2 violates constraint of 1 carol# cat /var/log/auth.log | grep 'ignoring informational payload, type INVALID_KEY_INFORMATION' [YES] Feb 27 23:19:41 carol pluto[16105]: "home" #1: ignoring informational payload, type INVALID_KEY_INFORMATION carol# ipsec status | grep 'home.*STATE_QUICK_I2.*IPsec SA established' [NO] moon# ipsec status | grep 'duck.*STATE_QUICK_R2.*IPsec SA established' [NO] POST-TEST moon# ipsec stop Stopping strongSwan IPsec... carol# ipsec stop Stopping strongSwan IPsec... moon# rm /etc/ipsec.d/cacerts/*