Connecting Cisco 851w to comcast gateway

[greatfool66]

I'm trying to hookup this 851w router in place of an old linksys router, but can't get it to see the internet.

We have comcast business class cable with a static ip. Using the SDM I put the static address and subnet in the router config and also put the DNS server addresses they gave us in too. I don't see anywhere to put in the default gateway like there was on the Linksys.

Its not a DNS problem though, as the router just can't ping the comcast gateway but nothing past it on the internet. What am I doing wrong connecting this?

 

[jlazzaro]

you need a default route pointing to the comcast gateway...

ip route 0.0.0.0 0.0.0.0 x.x.x.x

 

[greatfool66]

n/m figured it out, comcast gateways are a bitch though. For some reason on the Cisco router you have to use the gateway's internal ip 10.1.10.1 as the default gateway, not the gateway's public ip.

 

[nightowl]

Your default route should be set by the DHCP server. Also, you would be better off setting the default route to f0 rather than to an IP address because you never know when it might change. Granted, my cable modem IP address has not changed for as long as I can remember.

 

[azev]

dont forget to configure nat