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Diffstat (limited to 'docs/usecases/vpp_init_sswan_resp.md')
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diff --git a/docs/usecases/vpp_init_sswan_resp.md b/docs/usecases/vpp_init_sswan_resp.md deleted file mode 100644 index 40da137cbd2..00000000000 --- a/docs/usecases/vpp_init_sswan_resp.md +++ /dev/null @@ -1,195 +0,0 @@ -VPP as IKEv2 initiator and strongSwan as responder -================================================== - -Prerequisites -------------- - -To make the examples easier to configure ``docker`` it is required to pull strongSwan docker image. The networking is done using Linux' veth interfaces and namespaces. - -Setup ------ - -First a topology: - -``` -192.168.3.2 192.168.5.2 - + loopback - | + -+----+----+ 192.168.10.2 +-----+----+ -| VPP | |strongSwan| -|initiator+----------------------+responder | -+---------+ +----------+ - 192.168.10.1 -``` - -Create veth interfaces and namespaces and configure them: - -``` -sudo ip link add gw type veth peer name swanif -sudo ip link set dev gw up - -sudo ip netns add ns -sudo ip link add veth_priv type veth peer name priv -sudo ip link set dev priv up -sudo ip link set dev veth_priv up netns ns - -sudo ip netns exec ns \ - bash -c " - ip link set dev lo up - ip addr add 192.168.3.2/24 dev veth_priv - ip route add 192.168.5.0/24 via 192.168.3.1" -``` - - -Create directory with strongswan configs that will be mounted to the docker container -``` -mkdir /tmp/sswan -``` - -Create the ``ipsec.conf`` file in the ``/tmp/sswan`` directory with following content: - -``` -config setup - strictcrlpolicy=no - -conn initiator - mobike=no - auto=add - type=tunnel - keyexchange=ikev2 - ike=aes256gcm16-prfsha256-modp2048! - esp=aes256gcm16-esn! - -# local: - leftauth=psk - leftid=@sswan.vpn.example.com - leftsubnet=192.168.5.0/24 - -# remote: (gateway) - rightid=@roadwarrior.vpp - right=192.168.10.2 - rightauth=psk - rightsubnet=192.168.3.0/24 -``` - -``/tmp/sswan/ipsec.secrets`` -``` -: PSK 'Vpp123' -``` - -``/tmp/sswan/strongswan.conf`` -``` -charon { - load_modular = yes - plugins { - include strongswan.d/charon/*.conf - } - filelog { - /tmp/charon.log { - time_format = %b %e %T - ike_name = yes - append = no - default = 2 - flush_line = yes - } - } -} -include strongswan.d/*.conf -``` - -Start docker container with strongSwan: - -``` - docker run --name sswan -d --privileged --rm --net=none \ - -v /tmp/sswan:/conf -v /tmp/sswan:/etc/ipsec.d philplckthun/strongswan -``` - -Finish configuration of initiator's private network: - -``` -pid=$(docker inspect --format "{{.State.Pid}}" sswan) -sudo ip link set netns $pid dev swanif - -sudo nsenter -t $pid -n ip addr add 192.168.10.1/24 dev swanif -sudo nsenter -t $pid -n ip link set dev swanif up - -sudo nsenter -t $pid -n ip addr add 192.168.5.2/32 dev lo -sudo nsenter -t $pid -n ip link set dev lo up -``` - -Start VPP ... - -``` -sudo /usr/bin/vpp unix { \ - cli-listen /tmp/vpp.sock \ - gid $(id -g) } \ - api-segment { prefix vpp } \ - plugins { plugin dpdk_plugin.so { disable } } -``` - -... and configure it: - -``` -create host-interface name gw -set interface ip addr host-gw 192.168.10.2/24 -set interface state host-gw up - -create host-interface name priv -set interface ip addr host-priv 192.168.3.1/24 -set interface state host-priv up - -ikev2 profile add pr1 -ikev2 profile set pr1 auth shared-key-mic string Vpp123 -ikev2 profile set pr1 id local fqdn roadwarrior.vpp -ikev2 profile set pr1 id remote fqdn sswan.vpn.example.com - -ikev2 profile set pr1 traffic-selector local ip-range 192.168.3.0 - 192.168.3.255 port-range 0 - 65535 protocol 0 -ikev2 profile set pr1 traffic-selector remote ip-range 192.168.5.0 - 192.168.5.255 port-range 0 - 65535 protocol 0 - -ikev2 profile set pr1 responder host-gw 192.168.10.1 -ikev2 profile set pr1 ike-crypto-alg aes-gcm-16 256 ike-dh modp-2048 -ikev2 profile set pr1 esp-crypto-alg aes-gcm-16 256 - -create ipip tunnel src 192.168.10.2 dst 192.168.10.1 -ikev2 profile set pr1 tunnel ipip0 -ip route add 192.168.5.0/24 via 192.168.10.1 ipip0 -set interface unnumbered ipip0 use host-gw -``` - -Initiate the IKEv2 connection: - -``` -vpp# ikev2 initiate sa-init pr1 -``` - -``` -vpp# show ikev2 sa details - iip 192.168.10.2 ispi f717b0cbd17e27c3 rip 192.168.10.1 rspi e9b7af7fc9b13361 - encr:aes-gcm-16 prf:hmac-sha2-256 dh-group:modp-2048 - nonce i:eb0354613b268c6372061bbdaab13deca37c8a625b1f65c073d25df2ecfe672e - r:70e1248ac09943047064f6a2135fa2a424778ba03038ab9c4c2af8aba179ed84 - SK_d 96bd4feb59be2edf1930a12a3a5d22e30195ee9f56ea203c5fb6cba5dd2bb80f - SK_e i:00000000: 5b75b9d808c8467fd00a0923c06efee2a4eb1d033c57532e05f9316ed9c56fe9 - 00000020: c4db9114 - r:00000000: 95121b63372d20b83558dc3e209b9affef042816cf071c86a53543677b40c15b - 00000020: f169ab67 - SK_p i:fb40d1114c347ddc3228ba004d4759d58f9c1ae6f1746833f908d39444ef92b1 - r:aa049828240cb242e1d5aa625cd5914dc8f8e980a74de8e06883623d19384902 - identifier (i) id-type fqdn data roadwarrior.vpp - identifier (r) id-type fqdn data sswan.vpn.example.com - child sa 0:encr:aes-gcm-16 esn:yes - spi(i) 9dffd57a spi(r) c4e0ef53 - SK_e i:290c681694f130b33d511335dd257e78721635b7e8aa87930dd77bb1d6dd3f42 - r:0a09fa18cf1cf65c6324df02b46dcc998b84e5397cf911b63e0c096053946c2e - traffic selectors (i):0 type 7 protocol_id 0 addr 192.168.3.0 - 192.168.3.255 port 0 - 65535 - traffic selectors (r):0 type 7 protocol_id 0 addr 192.168.5.0 - 192.168.5.255 port 0 - 65535 -``` - -Now we can generate some traffic between responder's and initiator's private networks and see it works. - -``` -$ sudo ip netns exec ns ping 192.168.5.2 -PING 192.168.5.2 (192.168.5.2) 56(84) bytes of data. -64 bytes from 192.168.5.2: icmp_seq=1 ttl=63 time=0.450 ms -64 bytes from 192.168.5.2: icmp_seq=2 ttl=63 time=0.630 ms -``` |