Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

How to bridge vlan and physical interface on asr?

I will connect a server on g0/0/2 of ASR with IP add 1.1.1.5 and gateway 1.1.1.1. I want that device to be part of vlan 10 on g0/0/0. What configuration should I place on g0/0/2? As much as possible, I dont want to use bridging because I cannot remove the IP address on vlan 10 (it is a production network). Is there any other possible way I can do it?

 

Current config:

interface GigabitEthernet0/0/0.10

 encapsulation dot1Q 10

 ip address 1.1.1.1 255.255.255.224

 ip flow ingress

 ip flow egress

 interface GigabitEthernet0/0/0.20

 encapsulation dot1Q 20

 ip address 2.2.2.1 255.255.255.224

 

Any suggestion will be highly appreciated.

 

Thanks,

Caren

Everyone's tags (1)
6 REPLIES

 

 

Hi ,

 Solution for your requirement is ip unnumbered Command , under your g0/0/2

 

interface GigabitEthernet0/0/2

ip unnumbered GigabitEthernet0/0/0.10

 

http://www.cisco.com/c/en/us/support/docs/ip/hot-standby-router-protocol-hsrp/13786-20.html

 

HTH

Sandy

New Member

Hi Sandy,        Thanks. The

Hi Sandy,

        Thanks. The link is up but cannot ping the directly connected device, I use my laptop and the server with the same subnet of 1.1.1.1 for this test. I am using GLC -T on SFP port and the link is 'UP'. On forum, some people say GLC -T works fine and some say it's not (not supported by asr). I ordered SFP -GE -T and will test again.

here's #sh ip int br output:

Gi0/0/0.100            1.1.1.1     
GigabitEthernet0/0/2   1.1.1.1   (g0/0/2 inherit the ip of g0/0/0.100)

I tried on gns3 and my lab router 2900 series but encounter this 'Point-to-point (non-multi-access) interfaces only' whenever I configure #ip unnumber... on physical interface.

 

I am willing to try any other suggestion or solution.

 

Regards,

Caren

Hi  To check interface gig 0

Hi 

 To check interface gig 0/0/2 operational status . From your Router Ping to any destination using  source as interface gigabitEtherent 0/0/2 . 

Supported T Connector for ASR is SFP-GE-T.

SFP-GE-T

Cisco 1000BASET SFP

The 1000BASE-T SFP module operates on standard Category 5 wiring of up to 
328 feet (100 m) link length.

http://www.cisco.com/c/en/us/td/docs/interfaces_modules/shared_port_adapters/install_upgrade/ASR1000/asr_sip_spa_hw/ASRsov.html#pgfId-1067788

 

HTH

Sandy

New Member

Hi Sandy,      Thanks.The new

Hi Sandy,

      Thanks.

The new 1000base -T SFP did not even bring the link up, unlike the first one that I used. I inserted the  GLC -T back on g0/0/2, the link went up and do # ping 8.8.8.8 source g0/0/2.

ASR#ping 8.8.8.8 so gigabitEthernet 0/0/2
% Invalid source interface - IP not enabled or interface is down

here's #sh ip int br output:

Gi0/0/0.100            1.1.1.1     
GigabitEthernet0/0/2   1.1.1.1   (g0/0/2 inherit the ip of g0/0/0.100)

Does this mean that the inherited IP by g0/02 from g0/0/0.100 is not valid to work?

 

Regards,

Caren

Hi ,   Are you able to ping

Hi , 

  Are you able to ping from the HOST connected to gig0/0/2 to the gateway IP address 1.1.1.1 .

Share me your router config . 

 

HTH
Sandy

New Member

Hi,I can't ping directly

Hi,

I can't ping directly connected device to the 1.1.1.1 eventhough the link is up.

 

Current config:

interface GigabitEthernet0/0/0.10

 encapsulation dot1Q 10

 ip address 1.1.1.1 255.255.255.224

 ip flow ingress

 ip flow egress

 interface GigabitEthernet0/0/0.20

 encapsulation dot1Q 20

 ip address 2.2.2.1 255.255.255.224

!
interface GigabitEthernet0/0/2
 ip unnumbered GigabitEthernet0/0/0.100
 negotiation auto
!

here's #sh ip int br output:

Gi0/0/0.100            1.1.1.1     
GigabitEthernet0/0/2   1.1.1.1 

 

Thanks,

Caren

 

101
Views
0
Helpful
6
Replies
CreatePlease login to create content