RE: [Sheflug] SuSE 7.3 Network Problems

["Alistair Williamson" <xxxxx [at] xxxxxxxxxxxxxx>]

Hi Alex,

I've changed network cards again, now I've installed a rtl 8139 (and I have
installed the 8139too module as per the installation support database). The
IP address is now set to 192.168.1.5/255.255.255.0. It still doesn't work!

The laptop IP address is 192.168.1.1/255.255.255.0
I'm running w2k on the laptop at the moment arp -a gives me:
Interface: 192.168.0.5 on Interface 0x2
Internet Address 192.168.0.1
Physical Address 00-20-18-70-bf-83
Type dynamic.

I have 2 adapters running on this laptop.

The server arp gives me:
Address 192.168.1.1
HWtype <there's no value set here>
HWAddress (incomplete)
Flags Mask <there's no value set here>
Iface eth0

ifconfig -a shows eth0, lo and sit0

ifconfig eth0 gives:
Link encap:Ethernet HWAddress 00:01:A7:0B:B1:E9
inet addr:192.168.0.1 Bcast192.168.0.255 Mask 255.255.255.0
inet6 addr: fe80::210:a7ff:fe0b:b1e9/10 Scope:Link
UP BROADCAST NOTRAILERS RUNNING MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overuns:0 frame:0
Tx packets:0 errors:0 dropped:16 overuns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes (0.0 b)
Interupt:11 Base address:0x9000

Thanks very much for spending time on this - I owe you the beer anyway!

Cheers,

Alistair

PS I am running w2k on the laptop just because it makes it easier to access
the internet. If it helps I'll go back to SuSE on the laptop as well?

> -----Original Message-----
> From: shef-lug-admin [at] list.sheflug.org.uk
> [mailto:shef-lug-admin [at] list.sheflug.org.uk]On Behalf Of Alex Hudson
> Sent: 15 December 2001 12:19
> To: Sheffield LUG
> Subject: RE: [Sheflug] SuSE 7.3 Network Problems
>
>
> On Sat, 2001-12-15 at 11:56, Alistair Williamson wrote:
> > 11:38:40.016517 192.168.0.1.32768 > 192.168.0.295.137:
> > >>>NBT UDP PACKET(137): QUERY;REQUEST;BROADCAST (DF)
>
> Hmm. An impossible packet; but I'll put that down to a typo ;) That's
> Samba trying to see who else in on the network, nothing to worry about.
> You may want to stop all your network services while you're trying to
> debug this problem though - it'll give you less noise when you're
> logging.
>
> > 11:39:19.136704 arp who-has 192.168.0.5 tell 192.168.0.1
>
> Ah :( Remember when I said 'but I'd be very surprised if..' ??
>
> Basically, your network is not functioning at even the lowest level, it
> appears.
>
> First, run tcpdump on your laptop at the same time. Ping both ways. It
> might be that your network isn't (for whatever reason) able to transmit
> or receive. If your laptop doesn't see the arp requests, then the faulty
> machine is not transmitting. If your laptop doesn't get arp replies (an
> 'is at' packet) then neither transmit or receive is going.
>
> Also, looking at the arp cache after pinging would be useful - just run
> 'arp' as root on both the desktop and the laptop, and see if either of
> them can see each other.
>
> Could you also give us the full 'ifconfig eth0' output from the faulty
> machine? Also, do you have any odd network devices listed in 'ifconfig
> -a', like tunl0, gre0, etc?
>
> Cheers,
>
> Alex.
>
>
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