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