Use 2503/2513 to sharing broadband sharing

[siuwaa]

How to use 2503/2513 for sharing broadband Internet access that is one gateway with NAT for all the local client PCs to share one local IP address for pppoe connection.

I check the ethernet port with one command "pppoe enable" only, nothing I know to bring up the connection with my LoginID and Password......

[murabi]

If I am reading your question correctly, you will not be able to use two routers to share the same Internet connection. If you are trying to set up the two routers for redundency then you should set up HSRP on the routers. The following gives an example of HSRP http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12112cea/3550scg/swhsrp.htm.