testing: Migrate ikev2-stroke-bye scenarios to vici
This commit is contained in:
Andreas Steffen
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The roadwarriors <b>alice</b> and <b>venus</b> sitting behind the router <b>moon</b> set up
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tunnels to gateway <b>sun</b>. Since both roadwarriors possess the same 10.1.0.0/25 subnet,
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gateway <b>sun</b> uses Source NAT after ESP decryption to map these subnets to 10.3.0.10
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and 10.3.0.20, respectively.
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<p/>
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In order to differentiate between the tunnels to <b>alice</b> and <b>venus</b>, respectively,
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<b>XFRM marks</b> are defined for both the inbound and outbound IPsec SAs and policies using
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the <b>mark_in</b> and <b>mark_out</b> options. With the <b>set_mark_in</b> option, the
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corresponding mark is applied to the inbound packets after decryption. Return traffic is
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marked via <b>iptables -t mangle</b> rules in the PREROUTING chain.
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<p/>
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In order to test the tunnel, the hosts <b>alice</b> and <b>venus</b> ping the client
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<b>bob</b> behind the gateway <b>sun</b>.
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alice::swanctl --list-sas --raw 2> /dev/null::home.*version=2 state=ESTABLISHED local-host=PH_IP_ALICE local-port=4500 [email protected] remote-host=PH_IP_SUN remote-port=4500 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=CURVE_25519.*child-sas.*home.*reqid=1 state=INSTALLED mode=TUNNEL protocol=ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.1.0.0/25] remote-ts=\[10.2.0.0/16]::YES
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venus::swanctl --list-sas --raw 2> /dev/null::home.*version=2 state=ESTABLISHED local-host=PH_IP_VENUS local-port=4500 local-id=venus.strongswan.org remote-host=PH_IP_SUN remote-port=4500 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=CURVE_25519.*child-sas.*home.*reqid=1 state=INSTALLED mode=TUNNEL protocol=ESP.*encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.1.0.0/25] remote-ts=\[10.2.0.0/16]::YES
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sun:: swanctl --list-sas --raw --ike-id 1 2> /dev/null::alice.*version=2 state=ESTABLISHED local-host=PH_IP_SUN local-port=4500 local-id=sun.strongswan.org remote-host=PH_IP_ALICE.*[email protected].*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519.*child-sas.*name=home.*reqid=1 state=INSTALLED mode=TUNNEL protocol=ESP.*mark-in=0000000a mark-out=0000000b encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.2.0.0/16] remote-ts=\[10.1.0.0/25]::YES
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sun:: swanctl --list-sas --raw --ike-id 2 2> /dev/null::venus.*version=2 state=ESTABLISHED local-host=PH_IP_SUN local-port=4500 local-id=sun.strongswan.org remote-host=PH_IP_VENUS.*remote-id=venus.strongswan.org.*encr-alg=AES_CBC encr-keysize=128 integ-alg=HMAC_SHA2_256_128 prf-alg=PRF_HMAC_SHA2_256 dh-group=CURVE_25519.*child-sas.*name=home.*reqid=2 state=INSTALLED mode=TUNNEL protocol=ESP.*mark-in=00000014 mark-out=00000015 encr-alg=AES_GCM_16 encr-keysize=128.*local-ts=\[10.2.0.0/16] remote-ts=\[10.1.0.0/25]::YES
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alice::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_.eq=1::YES
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venus::ping -c 1 PH_IP_BOB::64 bytes from PH_IP_BOB: icmp_.eq=1::YES
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moon::tcpdump::IP alice.strongswan.org > sun.strongswan.org: ESP::YES
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moon::tcpdump::IP venus.strongswan.org > sun.strongswan.org: ESP::YES
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moon::tcpdump::IP sun.strongswan.org > alice.strongswan.org: ESP::YES
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moon::tcpdump::IP sun.strongswan.org > venus.strongswan.org: ESP::YES
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bob::tcpdump::10.3.0.10 > bob.strongswan.org: ICMP echo request::YES
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bob::tcpdump::10.3.0.20 > bob.strongswan.org: ICMP echo request::YES
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bob::tcpdump::bob.strongswan.org > 10.3.0.10: ICMP echo reply::YES
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bob::tcpdump::bob.strongswan.org > 10.3.0.20: ICMP echo reply::YES
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# /etc/strongswan.conf - strongSwan configuration file
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charon {
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load = random nonce aes sha1 sha2 pem pkcs1 curve25519 gmp x509 curl revocation hmac vici kernel-netlink socket-default updown
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}
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connections {
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home {
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remote_addrs = PH_IP_SUN
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local {
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auth = pubkey
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certs = aliceCert.pem
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id = [email protected]
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}
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remote {
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auth = pubkey
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id = sun.strongswan.org
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}
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children {
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home {
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local_ts = 10.1.0.0/25
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remote_ts = 10.2.0.0/16
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updown = /usr/local/libexec/ipsec/_updown iptables
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hostaccess = yes
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esp_proposals = aes128gcm128-x25519
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}
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}
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version = 2
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proposals = aes128-sha256-x25519
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}
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}
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# /etc/strongswan.conf - strongSwan configuration file
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charon {
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load = random nonce aes sha1 sha2 pem pkcs1 curve25519 gmp x509 curl revocation hmac vici kernel-netlink socket-default updown
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syslog {
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daemon {
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knl = 2
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}
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}
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}
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connections {
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alice : connections.home {
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remote {
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id = [email protected]
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}
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children {
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home {
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mark_in = 10/0xffffffff
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set_mark_in = %same
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mark_out = 11/0xffffffff
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}
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}
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}
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venus : connections.home {
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remote {
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id = venus.strongswan.org
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}
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children {
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home {
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mark_in = 20 # 0xffffffff is used by default
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set_mark_in = %same
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mark_out = 21 # 0xffffffff is used by default
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}
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}
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}
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home {
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local_addrs = PH_IP_SUN
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local {
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auth = pubkey
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certs = sunCert.pem
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id = sun.strongswan.org
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}
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remote {
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auth = pubkey
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}
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children {
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home {
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local_ts = 10.2.0.0/16
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remote_ts = 0.0.0.0/0
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updown = /usr/local/libexec/ipsec/_updown iptables
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esp_proposals = aes128gcm128-x25519
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}
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}
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version = 2
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proposals = aes128-sha256-x25519
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}
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}
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# /etc/strongswan.conf - strongSwan configuration file
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charon {
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load = random nonce aes sha1 sha2 pem pkcs1 curve25519 gmp x509 curl revocation hmac vici kernel-netlink socket-default updown
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}
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connections {
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home {
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remote_addrs = PH_IP_SUN
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local {
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auth = pubkey
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certs = venusCert.pem
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id = venus.strongswan.org
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}
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remote {
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auth = pubkey
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id = sun.strongswan.org
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}
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children {
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home {
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local_ts = 10.1.0.0/25
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remote_ts = 10.2.0.0/16
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updown = /usr/local/libexec/ipsec/_updown iptables
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hostaccess = yes
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esp_proposals = aes128gcm128-x25519
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}
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}
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version = 2
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proposals = aes128-sha256-x25519
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}
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}
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sun::iptables -t mangle -v -n -L PREROUTING
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sun::systemctl stop strongswan
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alice::systemctl stop strongswan
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venus::systemctl stop strongswan
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alice::iptables-restore < /etc/iptables.flush
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venus::iptables-restore < /etc/iptables.flush
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sun::iptables-restore < /etc/iptables.flush
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sun::ip route del 10.1.0.0/16 via PH_IP_MOON
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winnetou::ip route del 10.1.0.0/16 via PH_IP_MOON
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alice::iptables-restore < /etc/iptables.rules
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venus::iptables-restore < /etc/iptables.rules
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sun::iptables-restore < /etc/iptables.rules
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winnetou::ip route add 10.1.0.0/16 via PH_IP_MOON
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sun::ip route add 10.1.0.0/16 via PH_IP_MOON
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# NAT client traffic to distinct virtual IPs
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sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 10 -j SNAT --to 10.3.0.10
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sun::iptables -t nat -A POSTROUTING -o eth1 -m mark --mark 20 -j SNAT --to 10.3.0.20
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# mark the return traffic accordingly
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sun::iptables -t mangle -A PREROUTING -d 10.3.0.10 -j MARK --set-mark 11
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sun::iptables -t mangle -A PREROUTING -d 10.3.0.20 -j MARK --set-mark 21
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sun::systemctl start strongswan
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alice::systemctl start strongswan
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venus::systemctl start strongswan
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sun::expect-connection alice
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alice::expect-connection home
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alice::swanctl --initiate --child home
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sun::expect-connection venus
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venus::expect-connection home
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venus::swanctl --initiate --child home
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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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# guest instances used for this test
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# All guest instances that are required for this test
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#
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VIRTHOSTS="alice venus moon winnetou sun bob"
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# Corresponding block diagram
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#
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DIAGRAM="a-v-m-w-s-b.png"
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# Guest instances on which tcpdump is to be started
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#
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TCPDUMPHOSTS="moon bob"
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# Guest instances on which IPsec is started
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# Used for IPsec logging purposes
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#
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IPSECHOSTS="alice venus sun"
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# charon controlled by swanctl
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#
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SWANCTL=1
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