Re: [tlug] Strange network problems

[Ray Mancy <0721265801@example.com>]

No they dont block ICMP, and even if I switch my iptables off, I still 
cant ping to my internal network and vice versa.
Both interfaces are up with ip addresses. for the life of me I cant 
figure out what the problem is.....

I have tried with ipchains, with iptables, with neither, changing IP 
addresses etc...
Funny thing is, is that it was working. Seems to be just my luck maybe.

Ray

Jack Morgan wrote:

>On Sat, Mar 02, 2002 at 06:55:44PM -0800, Ray Mancy wrote:
>
>>Hi,
>>I got my jcom hooked up today. Before it was hooked up though, I was 
>>testing out how my Masq server would work. It seems that RH was 
>>automatically loading ipchains, so I rmmod'ed it and started up 
>>ip_tables. I ran my firewall/masquerading script and it seemed to be 
>>working peachy. I then restarted the linux box, and I couldnt connect to 
>>anything!! I cannot ping the local interface from the internal LAN,  and 
>>vice versa! I have tried it running ipchains and ip_tables, but the only 
>>thing that can ping the external and internal eth cards are themselves!
>>Any ideas ?
>>
> 
>Does your ipchains/ip_tables rules block ICMP (eg ping) requests? If
>so then, try stopping them. You should be able to ping your default gateway. 
>
>What does ifconfig -a report? Are your interfaces up? working? 
>
>ipchains and ip_tables are basically the same. ip_tables is newer and probable
>the preferred choice. 
>
>