[AuckLUG] eth0 cable problems

[john]

On Wed, 2008-02-27 at 15:22 +1300, Ron Johns wrote:
> Hi All,
>       Start of latest problem. I have two computers hooked up with a nul 
> ethernet cable connected
> directly ethernet port to ethernet port. This lashup has worked on 
> exactly this setup in the past.
I have had similar trouble with crossed cable. 
At a Uniforum conference once, I could not get a demo of an LTSP thin
client to work with my laptop. Fortunately one of the people there had a
spare switch and 2 normal cables and everything worked fine.

So my advice is to get a small hub or switch ...

John O'Gorman
> 
> How however ,I can ping to the NEC Laptop....
> 
> [root at localhost gaspode]# ping 192.168.0.250
> PING 192.168.0.250 (192.168.0.250) 56(84) bytes of data.
> 64 bytes from 192.168.0.250: icmp_seq=1 ttl=64 time=0.265 ms
> 64 bytes from 192.168.0.250: icmp_seq=2 ttl=64 time=0.173 ms
> 64 bytes from 192.168.0.250: icmp_seq=3 ttl=64 time=0.181 ms
> 64 bytes from 192.168.0.250: icmp_seq=4 ttl=64 time=0.181 ms
> 64 bytes from 192.168.0.250: icmp_seq=5 ttl=64 time=0.183 ms
> 
> --- 192.168.0.250 ping statistics ---
> 5 packets transmitted, 5 received, 0% packet loss, time 3999ms
> rtt min/avg/max/mdev = 0.173/0.196/0.265/0.037 ms
> [root at localhost gaspode]#
> 
> But I cannot ssh or scp the laptop. I get...
> 
> [root at localhost gaspode]# ssh steve at 192.168.0.250
> steve at 192.168.0.250's password:
> Permission denied, please try again.
> steve at 192.168.0.250's password:
> Permission denied, please try again.
> steve at 192.168.0.250's password:
> Permission denied (publickey,gssapi-with-mic,password).
> 
> Over and over.
> 
> NOW.. When I try to ping my desktop from the laptop I get...
> 
>  From 198.168.0.250 icmp_seq=2 Destination Host Unreachable   and on and on.
> 
> The laptop has other problems ,more of which later ,but right now I need 
> to backup to my desktop
> and I have used this method before with good effect.
> 
> Any clues out there ?
> 
> Thanks very much
> Ron.
> 
> 
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