== Confiared (Linux) ==
  #!/bin/bash
  /sbin/modprobe ipip
  /bin/ip tu ad otherixp mode ipip local 190.186.245.10 remote X.X.X.X ttl 64 dev eth2
  /bin/ip ad ad dev otherixp 192.168.35.2 peer 192.168.35.1/32
  /bin/ip li se dev otherixp up
  /bin/ip link set dev otherixp mtu 1280
  /bin/ping 192.168.35.1

== Other IXP (Cisco) ==
  R1(config)# interface tunnel 0
  R1(config-if)# description Tunnel to Confiared
  R1(config-if)# ip address 192.168.35.1 255.255.255.0
  R1(config-if)# ip mtu 1280
  R1(config-if)# ip tcp adjust-mss 1240
  R1(config-if)# tunnel mode ipip
  R1(config-if)# tunnel source 190.186.245.10
  R1(config-if)# tunnel destination X.X.X.X