Tunnels

[bellah123]

During discovery we noticed the configuration below. What are the benefits of configuring this way?

interface Tunnel64243
vrf forwarding DEF
 ip address 192.169.1.1 255.255.255.254
 tunnel source 3.3.3.1
 tunnel destination 4.4.4.4
 tunnel vrf ZGY
end

interface TenGigabitEthernet0/0/5.125
 encapsulation dot1Q 125
 vrf forwarding ZGY
 ip address 3.3.3.1 255.255.255.254
end

[paul driver]

Hello

It a GRE tunnel in a vrf instance, A vrf is a logical separate routing instance wihtin the router as such it has it own route table and is isolated ( unelss configuraed otherwise) from the main routing table.

res

Paul

[Joseph W. Doherty · Accepted solution]

I believe it allows you to have the tunnel interface, logically, within one VRF while using a different VRF to transport the tunnel's packets.