--- /dev/null
+A tunnel connecting the subnets behind the gateways <b>moon</b> and <b>sun</b>,
+respectively, is automatically established by means of the setting
+<b>auto=start</b> in ipsec.conf. The connection is tested by client <b>alice</b>
+behind gateway <b>moon</b> pinging the client <b>bob</b> located behind
+gateway <b>sun</b>. The updown script automatically inserts iptables-based
+firewall rules that let pass the tunneled traffic.
--- /dev/null
+moon::swanctl --list-sas --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.1 local-id=moon.strongswan.org remote-host=192.168.0.2 remote-id=sun.strongswan.org initiator=yes.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=MODP_2048.*child-sas.*net-net.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.1.0.0/16] remote-ts=\[10.2.0.0/16]::YES
+sun:: swanctl --list-sas --raw 2> /dev/null::gw-gw.*version=2 state=ESTABLISHED local-host=192.168.0.2 local-id=sun.strongswan.org remote-host=192.168.0.1 remote-id=moon.strongswan.org.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=MODP_2048.*child-sas.*net-net.*state=INSTALLED mode=TUNNEL.*ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.2.0.0/16] remote-ts=\[10.1.0.0/16]::YES
+alice::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_req=1::YES
+sun::tcpdump::IP moon.strongswan.org > sun.strongswan.org: ESP::YES
+sun::tcpdump::IP sun.strongswan.org > moon.strongswan.org: ESP::YES
--- /dev/null
+# /etc/strongswan.conf - strongSwan configuration file
+
+swanctl {
+ load = pem pkcs1 x509 revocation constraints pubkey openssl random
+}
+
+charon {
+ load = sha1 sha2 md5 aes des hmac pem pkcs1 x509 revocation constraints pubkey gmp random nonce curl kernel-netlink socket-default updown vici
+}
+
+libstrongswan {
+ dh_exponent_ansi_x9_42 = no
+}
--- /dev/null
+connections {
+
+ gw-gw {
+ local_addrs = 192.168.0.1
+ remote_addrs = 192.168.0.2
+
+ local {
+ auth = pubkey
+ certs = moonCert.pem
+ id = moon.strongswan.org
+ }
+ remote {
+ auth = pubkey
+ id = sun.strongswan.org
+ }
+ children {
+ net-net {
+ local_ts = 10.1.0.0/16
+ remote_ts = 10.2.0.0/16
+
+ start_action = start
+ updown = /usr/local/libexec/ipsec/_updown iptables
+ rekey_time = 10m
+ esp_proposals = aes128gcm128-modp2048
+ }
+ }
+
+ version = 2
+ mobike = no
+ reauth_time = 60m
+ rekey_time = 20m
+ proposals = aes128-sha256-modp2048
+ }
+}
--- /dev/null
+# /etc/strongswan.conf - strongSwan configuration file
+
+swanctl {
+ load = pem pkcs1 x509 revocation constraints pubkey openssl random
+}
+
+charon {
+ load = sha1 sha2 md5 aes des hmac pem pkcs1 x509 revocation constraints pubkey gmp random nonce curl kernel-netlink socket-default updown vici
+}
+
+libstrongswan {
+ dh_exponent_ansi_x9_42 = no
+}
--- /dev/null
+connections {
+
+ gw-gw {
+ local_addrs = 192.168.0.2
+ remote_addrs = 192.168.0.1
+
+ local {
+ auth = pubkey
+ certs = sunCert.pem
+ id = sun.strongswan.org
+ }
+ remote {
+ auth = pubkey
+ id = moon.strongswan.org
+ }
+ children {
+ net-net {
+ local_ts = 10.2.0.0/16
+ remote_ts = 10.1.0.0/16
+
+ start_action = none
+ updown = /usr/local/libexec/ipsec/_updown iptables
+ rekey_time = 10m
+ esp_proposals = aes128gcm128-modp2048
+ }
+ }
+
+ version = 2
+ mobike = no
+ reauth_time = 60m
+ rekey_time = 20m
+ proposals = aes128-sha256-modp2048
+ }
+}
--- /dev/null
+moon::swanctl --terminate --ike gw-gw 2> /dev/null
+moon::service charon stop 2> /dev/null
+sun::service charon stop 2> /dev/null
+moon::iptables-restore < /etc/iptables.flush
+sun::iptables-restore < /etc/iptables.flush
--- /dev/null
+sun::iptables-restore < /etc/iptables.rules
+moon::iptables-restore < /etc/iptables.rules
+sun::service charon start 2> /dev/null
+moon::service charon start 2> /dev/null
+sun::swanctl --load-creds 2> /dev/null
+moon::swanctl --load-creds 2> /dev/null
+sun::swanctl --load-conns 2> /dev/null
+moon::swanctl --load-conns 2> /dev/null
+moon::sleep 1
--- /dev/null
+#!/bin/bash
+#
+# This configuration file provides information on the
+# guest instances used for this test
+
+# All guest instances that are required for this test
+#
+VIRTHOSTS="alice moon winnetou sun bob"
+
+# Corresponding block diagram
+#
+DIAGRAM="a-m-w-s-b.png"
+
+# Guest instances on which tcpdump is to be started
+#
+TCPDUMPHOSTS="sun"
+
+# Guest instances on which IPsec is started
+# Used for IPsec logging purposes
+#
+IPSECHOSTS="moon sun"