04-14-2008 09:23 AM - edited 03-03-2019 09:32 PM
I have this card installed in a 2821 router and the only configuration that has been entered is to set the card type at T3. Below is a show run output from the router. Can anyone tell/explain what this portion is related to the T3 card?
interface Tunnel3
no ip address
i can't find any reference on cisco's site. Below is the SH RUN output.
Any help is greatly appreciated.
Current configuration : 665 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
card type t3 1
!
no aaa new-model
!
!
ip cef
!
!
!
!
!
controller T3 1/0
!
!
!
interface Tunnel3
no ip address
!
interface GigabitEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial1/0
no ip address
shutdown
dsu bandwidth 44210
!
ip forward-protocol nd
!
ip http server
!
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
login
!
04-14-2008 10:13 AM
interface Serial 1/0 is where the Layer3 configuration will take place.
The match to that interface numbering was done with this command controller T3 1/0
The Tunnel3 can go, it has not value for now.
HTH,
__
Edison.
04-14-2008 11:32 AM
Thank you Edison, however, I understand all this. The question was, can anyone tell/explain what the Interface Tunnel3 is? There is no mention on Cisco site or documentation.
04-14-2008 11:41 AM
It's a logical interface that was created by someone. It's not default on any configuration.
Tunnel interfaces are created to carry traffic to/from another tunnel interface via public/untrusted networks.
HTH,
__
Edison.
04-14-2008 11:43 AM
beddo:
just to add to edison....
You run across GRE tunnel interfaces when working with VPN.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: