UDLR Tunnel configuration

10.1.1.0

10.2.1.0

10.5.1.0

10.9.1.0

10.3.1.0

10.6.1.0

A

C

B

Router A

interface loopback 0

ip address 10.0.1.1 255.255.255.0

!

interface tunnel 0

ip address 10.4.1.1 255.255.255.0

tunnel source loopback 0

tunnel mode gre multipoint

tunnel key 5

tunnel udlr receive-only ethernet 1

!

interface ethernet 0

ip address 10.1.1.1 255.255.255.0

!

interface ethernet 1

ip address 10.2.1.1 255.255.255.0

!

interface ethernet 2

ip address 10.3.1.1 255.255.255.0

Router B

access-list 101 permit ospf any any

access-list 101 permit icmp any any

!

interface loopback 0

ip address 10.8.1.1 255.255.255.0

!

interface tunnel 0

ip address 10.7.1.1 255.255.255.0

ip access-group out 101

tunnel source loopback 0

tunnel destination 10.0.1.1

tunnel key 5

tunnel udlr send-only ethernet 0

tunnel udlr address-resolution

!

interface ethernet 0

ip address 10.2.1.2 255.255.255.0

no keepalive

!

interface ethernet 1

ip address 10.5.1.1 255.255.255.0

!

interface ethernet 2

ip address 10.6.1.1 255.255.255.0

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