friends,
I have a scenario where i need to use multiple multi-point GRE tunnels and put them in VRF for each customer. The problem i am facing is that for each Tunnel i use Routers loopback in global table as source address. It works fine for one Tunnel. But as soon as i create another tunnel using the same loopback as source. Both tunnels go down. If i use different loopback addresses for each tunnel, all tunnels stays up. Can anyone tell me why i cannot use one loopback as source-address for all tunnels?? creating indiviual loopback for each tunnel doesn't seem scalable.
interface Tunnel0
ip vrf forwarding RED
ip address 10.0.0.1 255.255.255.0
no ip redirects
ip nhrp map 10.0.0.4 172.16.1.4
ip nhrp map 10.0.0.5 172.16.1.5
ip nhrp network-id 1
tunnel source Loopback0
tunnel mode gre multipoint
end
interface Tunnel1
ip vrf forwarding BLUE
ip address 11.0.0.1 255.255.255.0
no ip redirects
ip nhrp map 11.0.0.6 172.16.1.6
ip nhrp network-id 2
tunnel source Loopback1
tunnel mode gre multipoint
end
interface FastEthernet0/0
description *** Connected to Customers for mGRE ***
ip address 172.16.1.1 255.255.255.0
end
interface Loopback0
ip address 1.1.1.254 255.255.255.255
end
