regarding VPN

[gopinath.krishna]

I have locations A,B & C.

Actual goal is to make lan @ A to reach lan @ C. For this a vpn tunnel will be established from A to B and then another tunnel from B to C. There will be no direct tunnel from A to C. Please let me kno whether this would work or not. If so please share with me some config examples for this setup.

[brettmilborrow]

Hi,

This is possible and is called hairpin VPN or hub and spoke VPN.

Try reading this:

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00804675ac.shtml

[gopinath.krishna]

Hey,

thanks a lot, is it possible to havespoke-spoke tunnel by using routers at all the three ends(a,b & c)

thanks and regards

gopi

[brettmilborrow]

Yes this is possible. I will try to find a doc for you.

[cisco24x7]

this should be easy:

1- setup GRE/IPSec between A & B,

2- run OSPF or Eigrp between A & B,

3- setup GRE/IPSec between B & C,

4- run OSPF or Eigrp between B & C,

Now A will know how to get to C via B and

C will know to get to A via B.

CCIE Security