[SC.LUG] networking for idiots

[Srdjan Todorovic]

Hello Robert

--- Robert Marshall
<robert at chezmarshall.freeserve.co.uk> wrote:
> I'm trying to connect two linux boxes together and
> currently getting
> nowhere, so I thought I offer the current situation
> here for analysis/mockery.

> >From here I'm connected to the internet fine (eth0)
> and am trying to use
> eth1 to get to another machine via a cross-over, but
> I can't ping it or ssh
> or anything

Re-verify host A and host B IP addresses.

You can try ping -b to ping the broadcast address, and
then use Ethereal or tcpdump to find if any IP/ICMP
traffic is being sent back from the other host.

What you've shown seems to be ok. Might be problem
with
lower part of the stack than IP. Have you got the
Ethernet link lights on?

Re-check that both hosts have their interface up.

You might want to disconnect from Internet, and
iptables -F from both hosts, to clear firewall rules
(in case that's the problem).

Good luck
Srdjan

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