[SC.LUG] networking for idiots

Robert Marshall robert at chezmarshall.freeserve.co.uk
Mon Apr 4 20:46:24 BST 2005


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

route looks like

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.0.0     *               255.255.255.0   U     0      0        0 eth1
81.97.79.0      *               255.255.255.0   U     0      0        0 eth0
127.0.0.0       *               255.0.0.0       U     0      0        0 lo
default         cpc1-macc1-6-0- 0.0.0.0         UG    0      0        0 eth0

I'm 192.168.0.53 (on eth1), I can ping myself but with the other machine I
just get 

PING 192.168.0.54 (192.168.0.54) 56(84) bytes of data.
>From 192.168.0.53 icmp_seq=1 Destination Host Unreachable

ifconfig gives

eth1      Link encap:Ethernet  HWaddr 00:08:A1:60:8E:1D  
          inet addr:192.168.0.53  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::208:a1ff:fe60:8e1d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
so stuffs going out without errors 

at the other end - it has one connection eth0 - there's also no errors and
stuff appears in the  TX packets but also nothing's coming in

route here is
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.0.0     *               255.255.255.0   U     0      0        0 eth0
127.0.0.0       *               255.0.0.0       U     0      0        0 lo

There's nothing dropped in the logs from iptables on either machine

I guess there's something simple I'm missing but I've not yet seen it!

Robert
-- 
Links and things http://rmstar.blogspot.com/
Robert Marshall



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