Strange network problems. ;-)

[wpb44]

Hi,

I have a problem that I really can't understand!

I installed Gentoo on my Laptop (K6-II / 366 MHz) with Gentoo 1.2-Install-CD and stage-III tarball of 1.4-rc1 release for k6-2 architecture.
As system kernel, I now have 2.4.20-rc2-ac1 but I tried everything I could find about 2.4.19 and 2.4.20.
My NIC ist a CNet CEN-200AF using ASIX-Chipset. Everything worked fine just according to the manual during installation.

After reboot I got a problem: My NIC was not recognized.

PCMCIA workes, I also have a Epox-WLAN-card that does a good job.

But my CNet-Card doesn't.
We (hanno@gentoo.org helped me ) found an instruction to put several lines to /etc/pcmcia/config.opts and after that, the NIC is recognized.

It's found by the cardmgr at boot time now and it's configured by ifconfig as eth0.

I can ping on computers in my LAN, but they cannot ping to my computer.
I set default GW to my router's IP and als set DNS-serer entry to that.

Now if I try ping www.google.com, I get the IP-Address (resolving works!) but no answer from the server.
If I trie to ping th DNS-Server of my ISP (t-online, germany / 194.25.2.129), I get one single answer (time: 500 - 900ms) and then nothing else.

Pinging my other LAN-computers gives answering-times of 10ms up to 1000ms.

So why the heck do I get one single answer from a computer outside my network and nothing more? I can start pinging many times, always the first packet gets through.

Anybody any idea what to do?

cu, Bernd

[px]

that's a bit strange, 1000ms in local network ping... All other machine work well on the network? they can all ping them good? how did you configure your route? the server?

I would think that there is a firewall on your server working badly... Else maby your network card if all other lan can surf the net without any problem... What are theses options you added in config.opts... maybe one of them is your problem too...
_________________
Nous autres, mordus d'informatique, préférons par-dessus tout passer notre temps à bidouiller nos ordinateurs, plutôt que les utiliser pour faire quelque chose de productif. [Dave Barry]

[wpb44]

Hi there.

My network works just fine, 3 other computers, most times booted windows.

I tried in two completely separated LANs, all over the same.

Firewall works just as it should, it's just a dsl-dialup-hardware-router with not really a firewall. I never had any problems related to firewall issues with it. The previous windows-install on my laptop also had same IP-address. So I think this cannot be a problem at all.

The trick in /etc/pcmcia/config.opts was following: