12-19-2008 01:32 AM
I have a Cisco 871 router running IOS 12.4(22)T. I have advanced IP feature set.
Cisco feature navigator indicates that MP-BGP MPLS is supported by this release on this platform. All I need is basic MPLS/GRE tunnel with static labels to be terminated on a remote PE.
When I try to configure a L3VPN, I do not find any command to do it.
How can I configure it ?
Thanks
Farid
12-20-2008 11:36 PM
Hello Farid,
at the end of the list of features for 12.4(22)T in FN appears the following message:
"Some features are dependent on product model, interface modules (i.e. Line Cards & Port Adapters), and/or require a software feature license. Click here for more information."
Try the following:
conf t
ip vrf mytest
if this command is not accepted you cannot run a VRF over a GRE tunnel.
You can try to configure a GRE tunnel that is in VRF only on the other side.
Hope to help
Giuseppe
12-22-2008 02:07 AM
Hi Giuseppe,
Thanks. Indeed, I can create the VRFs as you mentionneded but I cannot enable the MP-BGP which is a component of the L3VPN as shown below:
cisco871-cpe#conf terminal
Enter configuration commands, one per line. End with CNTL/Z.
cisco871-cpe(config)#router bgp 100
cisco871-cpe(config-router)#address-family vpnv4 unicast
^
% Invalid input detected at '^' marker.
cisco871-cpe(config-router)#
cisco871-cpe(config-router)#
ip cef
ip vrf vpn1
rd 100:1
route-target export 100:1
route-target import 100:1
!
interface Tunnel1
ip address 1.1.1.1 255.255.255.0
ip mtu 1400
tunnel source FastEthernet4
tunnel destination 10.81.101.4
!
router bgp 100
no synchronization
bgp log-neighbor-changes
neighbor 10.81.101.4 remote-as 1
neighbor 10.81.101.4 update-source FastEthernet4
no auto-summary
!
12-22-2008 05:01 AM
Hello,
you may need a command under router bgp
router bgp 100
no bgp default ipv4-unicast
this moves BGP4 to BGP4+ and allows to use address families
then don't add the unicast parameter
address-family vpnv4
try in this way
Hope to help
Giuseppe
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