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New Member

Want to setup Tunnelling between 2 routers at diff sites

Hi Experts,

I would like to setup something like the below Router connection.

PC B PC C

| |

PC A - Router A - Router B - Router C - Router D - PC D

PC - stands for computer.

I would like to do a tunnelling between PC A and PC D, meaning in the process PC A cannot connect to PC B or PC C, only to PC D.

P/S: Sorry, diagram not ilustrate correctly. PC B connected to Router B's LAN, and PC C connected to Router C's LAN.

Any Configuration or examples I can use?

Thanks in advance.

Cindy

5 REPLIES
Hall of Fame Super Silver

Re: Want to setup Tunnelling between 2 routers at diff sites

Cindy

Perhaps I am not understanding something about your environment. But I am not sure that tunneling would necessarily provide the result that you want.

It would be easy to set up a tunnel between routerA and routerD. And you could set up routing that would access PC D via the tunnel from routerA and that would access PC A via the tunnel from routerD. But that would not prevent PC A from accessing PC B or PC C. To prevent that access you would need to configure an access list on routerA to prevent access from PC A to PC B and PC C (and similar access list filtering on routerD). And once you have the access list filtering in place, then why do you need the tunnel?

If there is something that I have not understood then perhaps you can clarify this?

HTH

Rick

New Member

Re: Want to setup Tunnelling between 2 routers at diff sites

Rick,

Thanks for your reply..:)

Well, the scenario is like this LAN A and LAN D are vendor's LAN, but LAN B and LAN C are internal network.

We want to have tunnel so that the vendor's PC wont be able to come in to our LANs.

We want them to ride on our WAN Connection but at the same time wanna prevent them from coming to our network.

Hope this clarifies.

Thanks again,

cindy

New Member

Re: Want to setup Tunnelling between 2 routers at diff sites

Hi Cindy,

I hope Generic Routing Encapsulation (GRE) will serve your purpose for more details see the link below.

http://www.cisco.com/en/US/tech/tk86/tk89/technologies_configuration_example09186a008011520d.shtml

Regards

Tirumala

Hall of Fame Super Gold

Re: Want to setup Tunnelling between 2 routers at diff sites

Private VLAN Catalyst Switch Support Matrix

http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a0080094830.shtml

Securing Networks with Private VLANs and VLAN Access Control Lists

http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a008013565f.shtml

Hope this helps.

New Member

Re: Want to setup Tunnelling between 2 routers at diff sites

Another possibility worth looking into is vrf lite to connect the specific PC's.

http://www.cisco.com/en/US/products/ps6128/products_configuration_example09186a0080a3a8a7.shtml

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