network problems

network problems

Post by Tobias Tobiase » Fri, 06 Oct 2000 07:24:21


I have a firewall with a network problem. Every second day or so the
network becomes slow, tried 'sh /etc/netstart' to restart the network but
it doesn't seem to work. The only solution I have found is to reboot the
firewall :-( I don't have much time to error tracking with 50 people
asking when the internet is back....

The box writes this is the log everytime it boots:

Oct  4 14:24:59 zorro /bsd: xl0 at pci0 dev 9 function 0 "3Com 3c905B
100Base-TX" rev 0x30: irq 12xl0: command never completed!
Oct  4 14:24:59 zorro /bsd:  address 00:50:da:92:52:84
Oct  4 14:24:59 zorro /bsd: exphy0 at xl0 phy 24: 3Com internal media
Oct  4 14:24:59 zorro /bsd: xl0: command never completed!
Oct  4 14:24:59 zorro /bsd: xl1 at pci0 dev 10 function 0 "3Com 3c905B
100Base-TX" rev 0x30: irq 5xl1: command never completed!
Oct  4 14:24:59 zorro /bsd:  address 00:50:da:b8:66:c7
Oct  4 14:24:59 zorro /bsd: exphy1 at xl1 phy 24: 3Com internal media
Oct  4 14:24:59 zorro /bsd: xl1: command never completed!

Any suggestions on what to do?


Ps. OBSD 2.7


1. Network problems with 3c595 on 100T network (detailed)

        I have a networking problem which I have not managed to solve after
reading the relevant HOTWO files. Any help will be appreciated.

  Intel Pentium Pro with 3Com 595 100Tx card connected to 100T network.

  The machine has WIN/NT installed and manages to access the network.

  - I have installed Slackware 3.1 (from InfoMagic CDROM)
  - run "netconfig" with appropriate parameters (double checked)


  - Kernel recognizes right device
  - No error messages at boot time

  - ifconfig shows the device setup, but shows 0 on all TX and RX counts,
    including errors counts.
  - same for /proc/net/dev

  - routing table seems ok (as far as I understand these things)

Yet, I can't run a single network application.

ping to my gateway just hang. When I press ^c, it reports "NN packets sent, 100% packet loss".

I tried to ping the machine from another machine, and again no

The interesting thing is that "ifconfig" keeps insisting that nothing was sent
 nor transmitted.

The only thing that I can think of is that the device parameters are not set
right. In particular "ifconfig" reports:

eth0  Link encap: 10MBps Ethernet ...

when the net should 100MBps.

Can this be the problem? If so, how do I set the right mode for the device?



2. Xircom 10/100 + 56k PCMCIA card

3. Two network adapters on seperate networks problem

4. HELP: Using 2 video cards with RedHat 6

5. Curious Networking problem: Installed via FTP but now the Network won't start.

6. Sendmail on Sol 2.3

7. Network problem, can't ping other machines on same network

8. How to override ISP's DHCP nameserver setting

9. Network problem: SIOCADDT: Network is unreachable

10. network problem - local network setup

11. Network problem on SLS .99pl12 (Network is unreachable)

12. Strange network problem (network suddenly stops working) - partial solution

13. Networking problem in Linux, but no problem in Windows on same hardware