before my company started using cisco routers, our server platform is window server 2003, we also configured to use its routing features to connect our LAN to the internet,our end users were successfully accessing the internet. Recently, we purcahsed cisco 870 series access routers for the purpose of connecting our LAN to the internet, after configuring it from the command line interface, we were able to browse the internet for some hours before everything went down and we've not been able to recoonnect again. the only information, we have from our service provider are the IP address to assign to our server (which acts as a router to connect to the internet), the default gateway and the ip address of the dns servers. in using a router to achieve connectivity to the internet do we need extra information? i went through a sample configuration i saw in cisco website, and i saw configuration for NAT, PPP authentication etc. please can someone help with configuration guide. my LAN is using 184.108.40.206 , 255.255.255.0, the default gateway of the isp is 10.100.130.25 255.255.255.248, ip address given for me to use for my server is 10.100.130.26, the dns servers ip address are 10.77.134.3, 10.77.134.4 (pls some figures were altered by me). i will appreciate any help rendered.
So you can't even ping the IP of your provider? The I would say you either have incorrect IP information - of your config on the dialer/fe0/4 is incorrect.
What type of circuit has the ISP provided you?