I have a Cisco 857 router at a customer site. The router is online and connected to the internet. PC's in the local network can get an internet connection, but when I try and use one of the PC's to ping an external IP address, or domain name, the ping fails.
both give Request timed out, but the same PC can access google.
The router has a vpn connection to another site, this works as expected, and I can ping the internal IP address of PC's at the other site.
The router can also ping the external IP address of the office I work in.
Any ideas what could be causing this problem?
sounds like ICMP is denied. post your config..
if you are using dialup, under the dialer interface make sure you have access-group to allow icmp
ip address negotiated
ip access-group 101 in
ip inspect DEFAULT100 out
ip nat outside
dialer pool 1
no cdp enable
ppp authentication chap callin
ppp chap hostname [email protected]
ppp chap password 0 xxxxxxx
access-list 100 permit ip any any
access-list 101 permit icmp any any echo-reply
access-list 101 permit icmp any any time-exceeded
access-list 101 permit icmp any any unreachable