Cannot Ping from Lan to Net

[VEM]

Hi, we just setup a new FR connection via a Cisco 2610.
The router can ping the net and can ping e0/0 as well as the clients on the LAN. However, the clients on the LAN cannot ping outside the network. This is the first FR I have setup. I must be missing somthing.
Do I need to configure NAT?
Do I need to create some type of routing table to get the LAN int to route packets to the WAN int?

Thanks for any help.

 

[tcvander]

Depending on your address scheme will determine if you need to do NAT or not. Are you using RFC1918 (Private) addresses? Are you connecting to the Internet? If yes on both then yes on NAT.
As far as routing goes, that depends on who/what is on the other end of the FR connection. Again, is it the Internet? Are you using Private addresses? Did your ISP gave you an IP address for the Serial interface on the router? Then you will have to NAT all LAN user's in that address. ANd make sure that all the users have the LAN address of the router as their default gagteway.
If you have your own address then you will need to do BGP with your ISP.
If you can provide some more information that would help Todd VanDerwerken, CCNA, CCDA
Technical Consultant

http://www.ciscolinks.net

"If at first you don't succeed...then sky diving isn't for you!"

 

[VEM]

Router to Internet.
Public IP on Ser0/0.100 from ISP.
Default route 0.0.0.0 0.0.0.0 x.x.x.x( ISP as next hop )
Private on e0/0
All PCs on LAN have e0/0 as gateway.
Sounds like I need NAT.

Can you explain why BGP would be required if I have my one address? I'm not sure I follow.

Thanks

 

[tcvander]

If you had your own address space on the Ethernet side how would your ISP know to route to it?
They would have to either add a static route to your network, or you would have to run BGP. Todd VanDerwerken, CCNA, CCDA
Technical Consultant

http://www.ciscolinks.net

"If at first you don't succeed...then sky diving isn't for you!"

 

[VEM]

When you say address space do you mean a public address or my private class c address?

Thanks

 

[tcvander]

Public.
Since you have an Public IP on Ser0/0.100 from ISP they know how to route to it.
IF you had Public address space on your LAN, THEN you would need to run BGP, or have the ISP add a static route, which most wont do. Todd VanDerwerken, CCNA, CCDA
Technical Consultant

http://www.ciscolinks.net

"If at first you don't succeed...then sky diving isn't for you!"

 

[VEM]

Okay... thanks