[nsp] Re: [gre tunnel using loopback for source]

[Joshua Sahala]

thank you to everyone who has replied, i have gotten some good tips

spent about 90 minutes on the phone with cisco trying to chase down
what appears to be a cef bug...the developers have it now, so if i get
a bug id, i will pass it along

/joshua

Joshua Sahala <joshua.ej.smith at usa.net> wrote:
> hello all,
> 
> i was wondering if it is possible to get a gre tunnel to work using
> a loopback for the tunnel source.  i have three interfaces (traffic
> is moved from one to another by local preference) that could 
> potentially be the active interface, so i am trying to get a tunnel
> that will stay up if i move the traffic off the interface.
> bgp will come up, and addresses in lan2 can ping my router, but not
> any devices in lan 1, and lan1 devices cannot ping the r2 loopback,
> or any lan2 devices
> 
> 
> lan1
>  |
> r1
>  |
> r2
>  |
> lan2
> 
> r1 config:
> interface Tunnel17
>  description connected_to_test
>  ip unnumbered Loopback19
>  no ip directed-broadcast
>  ip mtu 1580
>  tunnel source 192.168.1.194
>  tunnel destination 10.10.1.42
> 
> interface Loopback19
>  ip address 192.168.1.194 255.255.255.255
>  no ip redirects
>  no ip unreachables
>  no ip directed-broadcast
>  no ip proxy-arp
> 
> router bgp 65056
> network 192.168.1.0 mask 255.255.255.0
> neigh 172.16.16.1 remote as 65145
> 
> ip route 172.16.16.1 255.255.255.255 tun17
> 
> 
> r2 config
> 
> interface Tunnel1
>  description connected_to_test
>  ip unnumbered Loopback9
>  no ip directed-broadcast
>  ip mtu 1580
>  tunnel source 10.10.1.42
>  tunnel destination 192.168.1.194
> 
> interface Loopback9
>  ip address 172.16.16.1 255.255.255.255
>  no ip redirects
>  no ip unreachables
>  no ip directed-broadcast
>  no ip proxy-arp
> 
> router bgp 65145
> network 172.16.16.0 255.255.255.0
> neigh 192.168.1.194 remote as 65056
> 
> ip route 192.168.1.194 255.255.255.255 tun1
> ip route 192.168.1.19 255.255.255.255 fas1/1
> 
> int fas1/1
> ip address 10.10.1.42 255.255.255.252
> 
> thanks
> 
> /joshua
> 
> 
> "Walk with me through the Universe,
>  And along the way see how all of us are Connected.
>  Feast the eyes of your Soul,
>  On the Love that abounds.
>  In all places at once, seemingly endless,
>  Like your own existence."
>      - Stephen Hawking -
> 



"Walk with me through the Universe,
 And along the way see how all of us are Connected.
 Feast the eyes of your Soul,
 On the Love that abounds.
 In all places at once, seemingly endless,
 Like your own existence."
     - Stephen Hawking -