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Working 2621XM Config Required

darrenoleary
Level 1
Level 1

Hi all,

I am having plenty of trouble trying to get my network connecting to the internet via a 2621XM router.

I currently have my network connecting to the internet through an ISA Firewall/Proxy but am wanting to replace this with the 2621XM.

The router has been configured correctly (I assume) from what I have read on the net as wel as from a few colleagues who know more about the ins and outs or this stuff. Access to the internet is still not happening.

I have configured FA0/0 as the outside interface and FA0/1 as the interface. The config for my router is attached. (See file 2621XM_Config - Original.txt)

Once thing that my friends told me was to configure the outside interface with the static IP supplied to me by my ISP.

I know I would only do this if I had my modem in Bridged mode, but as it is currently NAT'ing from my static IP to a 10.x.x.x address, i need not bother with altering it. Should I change it?

(See file 2621XM_Config - Modified.txt)

My internet service is via ADSL.

Neither method has not worked, so I am thinking that there is something missing in each of the configs.

Two questions need answering that I am unsure how to proceed with:

1. the ip domain-name... should this be my public domain name or my internal domain name?

2. the ip name-servers... should these be my ISP name servers or my internal name servers?

My ISA proxy/firewall is setup as a forwarding-only name server and uses my ISP name-servers to forward any requests my internals are unable to resolve. The 2621XM will effectively be doing this from now on.

Does anyone have a working config of a 2621XM that I would be able to use or work from to get my setup working correctly?

Thanking anyone in advance who an help me resolve this.

regards,

Darren

16 Replies 16

Hello Darren,

being a NAT command you can only convert your internal DNS server to the ip address of the WAN interface of your router.

So read global-address = router wan ip address.

Hope to help

Giuseppe

BTW,

strangely enough when I do a sh ip route, I am showing an address associated from my ISP: 203.17.101.65

This, according to an nslookup on that address is a loopback address.

I guess something is getting out to come back in, but when attempting to ping any other address from the router, i get no response, even the 203.17.101.65 address.

regards.

** amendment **

When I pin thi address from the router, i get a response. From the command prompt window, I get nothing. NSlookup provides the details of the address.