Wolfgang Bornath wrote:
>
> Notebook cannot reach any other destination apart from own eth0 and
> own Io
>
> Desktop cannot reach neither notebook address.
OK... give us the results of:
ping -br 255.255.255.255
ping -br 192.168.0.255
on both machines. If it works, you may something like this (from my net):
$ ping -br 255.255.255.255
WARNING: pinging broadcast address
PING 255.255.255.255 (255.255.255.255) from 192.168.1.100 : 56(84) bytes of
data.
64 bytes from 192.168.1.100: icmp_seq=0 ttl=255 time=131 usec
64 bytes from 192.168.1.101: icmp_seq=0 ttl=255 time=525 usec (DUP!)
64 bytes from 192.168.1.102: icmp_seq=0 ttl=255 time=673 usec (DUP!)
$ ping -br 192.168.1.255
WARNING: pinging broadcast address
PING 192.168.1.255 (192.168.1.255) from 192.168.1.100 : 56(84) bytes of data.
64 bytes from 192.168.1.100: icmp_seq=0 ttl=255 time=134 usec
64 bytes from 192.168.1.101: icmp_seq=0 ttl=255 time=550 usec (DUP!)
64 bytes from 192.168.1.1: icmp_seq=0 ttl=150 time=554 usec (DUP!)
64 bytes from 192.168.1.102: icmp_seq=0 ttl=255 time=718 usec (DUP!)
The above indicates that my LinkSys firewall (192.168.1.1) responds to net
broadcasts; but not wire broadcasts. The point is that these will try to elicit
a response from everyone on the wire, including self.
If these pings don't work, then you'll have to figure out what is wrong
physically (cable, NICs, IRQs, IOs, ...) before proceeding. If you get
responses to these broadcast pings, then do:
/sbin/arp -a
on both machines. Should look something like this:
$ /sbin/arp -a
r41 (192.168.1.1) at 00:20:78:C9:E1:1A [ether] on eth0
homer (192.168.1.102) at 08:00:5A:38:6C:1B [ether] on eth0
woody (192.168.1.101) at 00:01:02:E8:D7:9F [ether] on eth0
^^^^^^^^^^^^^^^^^ (MAC address)
Make sure the hardware MAC addresses match what the other machine's ifconfig is
telling you. I don't expect this to be a problem; but I'd hate to see you chase
this for days only to find a bad NIC card which can only be checked from an
adjacent machine (what the system *thinks* it's sending vs what actually goes
out over the wire).
HTH,
Pierre
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