Can ping Linksis IP and other computers, not internet but get web fine 1

[jethrom]

Hello,

I have a little setup of:

1 Linksys BEFSX41 router configured as a gateway
1 win2k machine
1 win98 machine
1 redhat Linux machine
1 GenToo Linux machine (in process of building it...but that's a different story)

background:
- They all can ping the router and each other.
- They all can access the web (via browser).
- The Win2k machine and Redhat machine have static IPs (192.168.1.100, 192.168.1.102 respectively).
- The win98 machine and GenToo machine use DHCP from the router.
- The router DHCP is enabled and starts at 192.168.1.50.
- My win2k DNS first two entries is my ISP DNS servers, then the last entry is my routers (192.168.1.1).

problem:
- I cannot ping or tracert any address ( name or IP ) outside my network.
- When I ping from my RedHat, (ping

http://www.yahoo.com),

it gives me the IP but then says "Packet filtered"
- When I ping from my Win2k (from cmd window using same....ping

http://www.yahoo.com),

it gives me "Request Timed Out" but also gives me the IP of yahoo.
- When I ping from my win98 box, it gives me "Destination Net unreachable" and yet again gives me the IP of yahoo.
- When I ping the IP from any of the machines, I get the same responses.

My thoughts:
- I was thinking that the DNS was working properly since the names resolved to an IP address.
- But I'll be darned if I can figure out why I can't ping any external address.

 

[bcastner]

Have you asked your IP if there are any restrictions on ICMP traffic?

Have you checked to see if your firewall is blocking any ICMP traffic in either direction?

 

[jethrom]

Thanks for your response!

Doggonit, I called my service provider (Iowatelecom) and they told me that they have indeed disabled ICMP traffic. They said that they turned it off due to rampid virus attacks.

Gee, I'm not sure if I'm happy about this or not....finding out that my setup is good (yippie!) but also finding out that there is nothing that I can do to fix it (DOH!)

 

[bcastner]

But at least you no longer have to tear your hair out.

The blocking of ICMP traffic is becoming common by ISPs.

Best,
Bill