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Diffstat (limited to 'docs/usecases/ikev2')
| -rw-r--r-- | docs/usecases/ikev2/2_vpp.rst | 128 | ||||
| -rw-r--r-- | docs/usecases/ikev2/index.rst | 14 | ||||
| -rw-r--r-- | docs/usecases/ikev2/vpp_init_sswan_resp.rst | 202 | ||||
| -rw-r--r-- | docs/usecases/ikev2/vpp_resp_sswan_init.rst | 203 |
4 files changed, 547 insertions, 0 deletions
diff --git a/docs/usecases/ikev2/2_vpp.rst b/docs/usecases/ikev2/2_vpp.rst new file mode 100644 index 00000000000..2c6fe6b88e4 --- /dev/null +++ b/docs/usecases/ikev2/2_vpp.rst @@ -0,0 +1,128 @@ +How to connect VPP instances using IKEv2 +======================================== + +This section describes how to initiate IKEv2 session between two VPP +instances using Linux veth interfaces and namespaces. + +Create veth interfaces and namespaces and configure it: + +:: + + sudo ip link add ifresp type veth peer name ifinit + sudo ip link set dev ifresp up + sudo ip link set dev ifinit up + + sudo ip netns add clientns + sudo ip netns add serverns + sudo ip link add veth_client type veth peer name client + sudo ip link add veth_server type veth peer name server + sudo ip link set dev veth_client up netns clientns + sudo ip link set dev veth_server up netns serverns + + sudo ip netns exec clientns \ + bash -c " + ip link set dev lo up + ip addr add 192.168.5.2/24 dev veth_client + ip addr add fec5::2/16 dev veth_client + ip route add 192.168.3.0/24 via 192.168.5.1 + ip route add fec3::0/16 via fec5::1 + " + + sudo ip netns exec serverns \ + bash -c " + ip link set dev lo up + ip addr add 192.168.3.2/24 dev veth_server + ip addr add fec3::2/16 dev veth_server + ip route add 192.168.5.0/24 via 192.168.3.1 + ip route add fec5::0/16 via fec3::1 + " + +Run responder VPP: + +:: + + sudo /usr/bin/vpp unix { \ + cli-listen /tmp/vpp_resp.sock \ + gid $(id -g) } \ + api-segment { prefix vpp } \ + plugins { plugin dpdk_plugin.so { disable } } + +Configure the responder + +:: + + create host-interface name ifresp + set interface ip addr host-ifresp 192.168.10.2/24 + set interface state host-ifresp up + + create host-interface name server + set interface ip addr host-server 192.168.3.1/24 + set interface state host-server up + + ikev2 profile add pr1 + ikev2 profile set pr1 auth shared-key-mic string Vpp123 + ikev2 profile set pr1 id local ipv4 192.168.10.2 + ikev2 profile set pr1 id remote ipv4 192.168.10.1 + + 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 + + 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-ifresp + +Run initiator VPP: + +:: + + sudo /usr/bin/vpp unix { \ + cli-listen /tmp/vpp_init.sock \ + gid $(id -g) } \ + api-segment { prefix vpp } \ + plugins { plugin dpdk_plugin.so { disable } } + +Configure initiator: + +:: + + create host-interface name ifinit + set interface ip addr host-ifinit 192.168.10.1/24 + set interface state host-ifinit up + + create host-interface name client + set interface ip addr host-client 192.168.5.1/24 + set interface state host-client up + + ikev2 profile add pr1 + ikev2 profile set pr1 auth shared-key-mic string Vpp123 + ikev2 profile set pr1 id local ipv4 192.168.10.1 + ikev2 profile set pr1 id remote ipv4 192.168.10.2 + + ikev2 profile set pr1 traffic-selector remote ip-range 192.168.3.0 - 192.168.3.255 port-range 0 - 65535 protocol 0 + ikev2 profile set pr1 traffic-selector local ip-range 192.168.5.0 - 192.168.5.255 port-range 0 - 65535 protocol 0 + + ikev2 profile set pr1 responder host-ifinit 192.168.10.2 + 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 192.168.10.1 dst 192.168.10.2 + ikev2 profile set pr1 tunnel ipip0 + ip route add 192.168.3.0/24 via 192.168.10.2 ipip0 + set interface unnumbered ipip0 use host-ifinit + +Initiate the IKEv2 connection: + +:: + + vpp# ikev2 initiate sa-init pr1 + +Responder’s and initiator’s private networks are now connected with +IPSEC tunnel: + +:: + + $ sudo ip netns exec clientns ping 192.168.3.1 + PING 192.168.3.1 (192.168.3.1) 56(84) bytes of data. + 64 bytes from 192.168.3.1: icmp_seq=1 ttl=63 time=1.64 ms + 64 bytes from 192.168.3.1: icmp_seq=2 ttl=63 time=7.24 ms diff --git a/docs/usecases/ikev2/index.rst b/docs/usecases/ikev2/index.rst new file mode 100644 index 00000000000..c9829b41908 --- /dev/null +++ b/docs/usecases/ikev2/index.rst @@ -0,0 +1,14 @@ +.. _ikev2: + +IKEv2 with VPP +============== + +This sections describes some of the ways to establish IKEv2 connection +between two VPP instances or VPP and strongSwan. It covers scenarios in +which VPP is the IKEv2 responder (and strongSwan initiator) and vice versa. + +.. toctree:: + + vpp_resp_sswan_init + vpp_init_sswan_resp + 2_vpp diff --git a/docs/usecases/ikev2/vpp_init_sswan_resp.rst b/docs/usecases/ikev2/vpp_init_sswan_resp.rst new file mode 100644 index 00000000000..93862185773 --- /dev/null +++ b/docs/usecases/ikev2/vpp_init_sswan_resp.rst @@ -0,0 +1,202 @@ +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 diff --git a/docs/usecases/ikev2/vpp_resp_sswan_init.rst b/docs/usecases/ikev2/vpp_resp_sswan_init.rst new file mode 100644 index 00000000000..9f3c7e7cbaf --- /dev/null +++ b/docs/usecases/ikev2/vpp_resp_sswan_init.rst @@ -0,0 +1,203 @@ +VPP as IKEv2 responder and strongSwan as initiator +================================================== + +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 | |initiator | + |responder+----------------------+strongSwan| + +---------+ +----------+ + 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=@roadwarrior.vpn.example.com + leftsubnet=192.168.5.0/24 + + # remote: (vpp gateway) + rightid=@vpp.home + 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 vpp.home + ikev2 profile set pr1 id remote fqdn roadwarrior.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 + + 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: + +:: + + $ sudo docker exec sswan ipsec up initiator + + ... + CHILD_SA initiator{1} established with SPIs c320c95f_i 213932c2_o and TS 192.168.5.0/24 === 192.168.3.0/24 + connection 'initiator' established successfully + +:: + + vpp# show ikev2 sa details + + iip 192.168.10.1 ispi 7849021d9f655f1b rip 192.168.10.2 rspi 5a9ca7469a035205 + encr:aes-gcm-16 prf:hmac-sha2-256 dh-group:modp-2048 + nonce i:692ce8fd8f1c1934f63bfa2b167c4de2cff25640dffe938cdfe01a5d7f6820e6 + r:3ed84a14ea8526063e5aa762312be225d33e866d7152b9ce23e50f0ededca9e3 + SK_d 9a9b896ed6c35c78134fcd6e966c04868b6ecacf6d5088b4b2aee8b05d30fdda + SK_e i:00000000: 1b1619788d8c812ca5916c07e635bda860f15293099f3bf43e8d88e52074b006 + 00000020: 72c8e3e3 + r:00000000: 89165ceb2cef6a6b3319f437386292d9ef2e96d8bdb21eeb0cb0d3b92733de03 + 00000020: bbc29c50 + SK_p i:fe35fca30985ee75e7c8bc0d7bc04db7a0e1655e997c0f5974c31458826b6fef + r:0dd318662a96a25fcdf4998d8c6e4180c67c03586cf91dab26ed43aeda250272 + identifier (i) id-type fqdn data roadwarrior.vpn.example.com + identifier (r) id-type fqdn data vpp.home + child sa 0:encr:aes-gcm-16 esn:yes + spi(i) c320c95f spi(r) 213932c2 + SK_e i:2a6c9eae9dbed202c0ae6ccc001621aba5bb0b01623d4de4d14fd27bd5185435 + r:15e2913d39f809040ca40a02efd27da298b6de05f67bd8f10210da5e6ae606fb + traffic selectors (i):0 type 7 protocol_id 0 addr 192.168.5.0 - 192.168.5.255 port 0 - 65535 + traffic selectors (r):0 type 7 protocol_id 0 addr 192.168.3.0 - 192.168.3.255 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=1.02 ms + 64 bytes from 192.168.5.2: icmp_seq=2 ttl=63 time=0.599 ms |