12-14-2012 11:41 AM - edited 03-07-2019 10:36 AM
Hi Everyone,
I am able to ping IP over the Wan link but not from directly connected switch.
what things i should look for on directly connected switch like ACL with ICMP allowed etc?
Thanks
Mahesh
Solved! Go to Solution.
12-14-2012 11:45 AM
Mahesh,
It can be many things. Is this remote from site A wan to site B wan you can ping, or do you mean that you can ping from the wan interface on the router, but the switch behind that router cannot ping?
HTH,
John
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12-14-2012 01:05 PM
Hi Mahesh,
vrf provide logical separation within the same or multiple devices.
If for example you have two customers connected to a switch or router and you don't want the customers to see each other's routes, you put each customer is a different vrf. Each vrf has its own routing table and when you ping customer a you have to use the vrf name with that ping. If you are trying to ping customer b, you have to includes customer b vrf in that ping.
here is good doc to read:
http://www.cisco.com/en/US/docs/optical/15000r4_6/ethernet/454/guide/vrf.pdf
HTH
Reza
12-14-2012 11:45 AM
Mahesh,
It can be many things. Is this remote from site A wan to site B wan you can ping, or do you mean that you can ping from the wan interface on the router, but the switch behind that router cannot ping?
HTH,
John
*** Please rate all useful posts ***
12-14-2012 11:50 AM
Hi John,
I can ping from Remote Site A to Site B over wan link
Thanks
MAhesh
12-14-2012 11:57 AM
Let's say that side A is the switch that can't get to the B wan link, does B know how to get back to A's inside networks or is A configured for nat? If A isn't configured with Nat, B will need a route pointing to A for any internal networks that A supports.
HTH,
John
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12-14-2012 12:54 PM
Hi John,
I figure that ping works from Local site by using ping vrf command.
Can you please tell me about vrf ?
Thanks
mahesh
12-14-2012 01:05 PM
Hi Mahesh,
vrf provide logical separation within the same or multiple devices.
If for example you have two customers connected to a switch or router and you don't want the customers to see each other's routes, you put each customer is a different vrf. Each vrf has its own routing table and when you ping customer a you have to use the vrf name with that ping. If you are trying to ping customer b, you have to includes customer b vrf in that ping.
here is good doc to read:
http://www.cisco.com/en/US/docs/optical/15000r4_6/ethernet/454/guide/vrf.pdf
HTH
Reza
12-14-2012 02:34 PM
Hi Reza & John,
Many thanks again.
I will read about VRF from the above link.
Regards
MAhesh
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