Internal Internet Routing

[hugochengym]

Hi ALL

May I have to know how to configure a single internet for multiple intranet within a MPLS network.

For example, there are threee sites we have. A, B and C where Site A is HQ while Band C are branches.

Right now, I want those Site B and C go through internet from Site A only by using MPLS network

In Site A we have a ASA 5510 and CISCO 3750 router while B and C are 1841 or 2620 router.

Anyone can help me?

Hugo

[garapoglou]

Hi,

In simple words, you should add static routes to the branches to forward all unknown traffic (0.0.0.0/0) to the router in site A.

Then add a static route to router A to forward all unkown traffic to the firewall. The firewall will then forward the internet traffic to its outside interface.

For example:

Branches' routers:

ip route 0.0.0.0 0.0.0.0 (ip address of router in HQs)

Router in HQs:

ip route 0.0.0.0 0.0.0.0 (ip address of the inside interface of the firewall)

Firewall:

route outside 0.0.0.0 0.0.0.0 (ip address of ISP)

Best regards,

Giorgos

[hugochengym]

Giorgos

I tested but fail

Route#traceroute 74.125.113.104 (Google IP)

Type escape sequence to abort.
Tracing the route to vw-in-f104.1e100.net (74.125.113.104)

  1 10.10.10.10 0 msec 0 msec 0 msec
  2 10.10.10.10 !H  *  !H

What scipt I missed?

Hugo

[garapoglou]

Hugo,

Could you post the configuration of those routers and the firewall?

Best regards,

Giorgos

[hugochengym]

Giorgos

Is it better you show me any reference guide?

Hugo

[garapoglou]

We could find reference guides but at least sharing the routers' ip addresses would provide more help.

For example, what are the ip addresses of all routers and the firewall, including all interfaces?

Giorgos

[CSCO11832637]

Hi,

for now what we know is that you have a routing problem so there is no reference guide to solve your problem unless you give us some information.

"love paint"

Tell me if i'm wrong but this is your Network. Do you have a full ip connectivity between your diferent site? What kind of routing protocol do you use?

-Guillaume