lab topology

deltaos -- cisco ios

deltaos
    ge0: 10.11.2.2

cisco ios
    g0/0: 10.11.2.10

lab configuration

current configuration

# show running-config

# DELTAOS CONFIG VERSION: 0

interface ge 0
  no ip address
  shutdown

interface ge 1
  no ip address
  shutdown

line console

line serial

line vty
  no login
  transport input none

end

configure the static ip on deltaos ge0

# conf t
(config)# int ge0
(config-if)# ip address 10.11.2.2 255.255.255.0
(config-if)# no shutdown
(config-if)# end
#

enable ipip tunnel on deltaos

# conf t
(config)# interface tunnel 1
(config-if)# tunnel mode ipip
(config-if)# tunnel source 10.11.2.2
(config-if)# tunnel destination 10.11.2.10
(config-if)# ip address 12.1.1.2 255.255.255.0
(config-if)# no shutdown
(config-if)# end
#

configure ipip tunnel on cisco ios

# conf t
(config)# int g0/0
(config-if)# ip address 10.11.2.10 255.255.255.0
(config-if)# no shutdown
(config-if)# end

# conf t
(config)# interface tunnel 1
(config-if)# tunnel mode ipip
(config-if)# tunnel source 10.11.2.10
(config-if)# tunnel destination 10.11.2.2
(config-if)# ip address 12.1.1.1 255.255.255.0
(config-if)# no shutdown
(config-if)# end
#

test ipip tunnel on deltaos

# ping 12.1.1.1
type ctrl-c to abort.
sending 5, 100-byte icmp echos to 12.1.1.1, timeout is 3s, interval is 1ms:
!!!!!
success rate is 100 percent (5/5), round-trip min/avg/max = 0.583/0.866/1.164 ms