UDLR Tunnel – with OSPF

Router A

interface tunnel 0

ip address 10.4.1.1 255.255.255.0

!

router ospf 200

passive-interface tunnel 0

! Don’t advertise the tunnel subnet over the udl

area 0 range 10.0.1.0 255.255.255.0 not-advertise

network 10.0.1.0 0.0.0.15 area 0

network 10.1.1.0 0.0.0.15 area 0

network 10.3.1.0 0.0.0.15 area 0

network 10.2.1.0 0.0.0.15 area 1

!

ip classless

10.1.1.0

10.2.1.0

10.5.1.0

10.3.1.0

10.6.1.0

A

C

B

Ethernet 1

Router B

router ospf 200

passive-interface tunnel 0

network 10.2.1.0 0.0.0.15 area 1

network 10.5.1.0 0.0.0.15 area 1

network 10.6.1.0 0.0.0.15 area 1

!

ip classless

Router C

router ospf 200

network 10.3.1.0 0.0.0.15 area 0

network 10.6.1.0 0.0.0.15 area 1

!

ip classless

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