I try to configure RedHat 6.0 with kernel 2.2.5-15.
With the correct netmask situation is the same. Now I have at the first host
(mars):
eth0 Link encap:Ethernet HWaddr 00:40:95:00:00:10
inet addr:192.168.2.1 Bcast:192.168.2.15 Mask:255.255.255.240
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:24 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
Interrupt:5 Base address:0x320
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:118 errors:0 dropped:0 overruns:0 frame:0
TX packets:118 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
At the second host (star):
lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
RX packets:266 errors:0 dropped:0 overruns:0
TX packets:266 errors:0 dropped:0 overruns:0
eth0 Link encap:10Mbps Ethernet HWaddr 00:40:95:80:01:E3
inet addr:194.247.138.97 Bcast:194.247.138.111
Mask:255.255.255.240
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:202634 errors:0 dropped:0 overruns:0
TX packets:204416 errors:23 dropped:0 overruns:0
Interrupt:10 Base address:0x320
eth0:0 Link encap:10Mbps Ethernet HWaddr 00:40:95:80:01:E3
inet addr:192.168.2.8 Bcast:192.168.2.15 Mask:255.255.255.240
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0
TX packets:0 errors:0 dropped:0 overruns:0
I've observed network with "tcpdump -i eth0"
1. ping from host 1(mars) to host 2(star)
18:01:39.013370 arp who-has star.accom.ru tell mars.accom.ru
18:01:43.212724 arp who-has star.accom.ru tell mars.accom.ru
18:01:49.013349 arp who-has star.accom.ru tell mars.accom.ru
18:01:49.203751 arp who-has star.accom.ru tell mars.accom.ru
18:01:59.013350 arp who-has star.accom.ru tell mars.accom.ru
18:01:59.203419 arp who-has star.accom.ru tell mars.accom.ru
18:02:09.013349 arp who-has star.accom.ru tell mars.accom.ru
18:02:09.203416 arp who-has star.accom.ru tell mars.accom.ru
100% packet loss while ping.
2. ping from host 2(star) to host 1(mars)
18:05:09.013354 arp who-has star.accom.ru tell mars.accom.ru
18:05:10.003412 arp who-has star.accom.ru tell mars.accom.ru
18:05:19.013374 arp who-has star.accom.ru tell mars.accom.ru
18:05:20.003770 arp who-has star.accom.ru tell mars.accom.ru
18:05:29.013354 arp who-has star.accom.ru tell mars.accom.ru
18:05:30.003406 arp who-has star.accom.ru tell mars.accom.ru
18:05:39.013370 arp who-has star.accom.ru tell mars.accom.ru
18:05:40.003834 arp who-has star.accom.ru tell mars.accom.ru
18:05:49.013354 arp who-has star.accom.ru tell mars.accom.ru
18:05:50.003407 arp who-has star.accom.ru tell mars.accom.ru
18:05:59.013370 arp who-has star.accom.ru tell mars.accom.ru
18:06:04.003879 arp who-has star.accom.ru tell mars.accom.ru
18:06:09.013350 arp who-has star.accom.ru tell mars.accom.ru
18:06:12.003763 arp who-has star.accom.ru tell mars.accom.ru
18:06:19.013353 arp who-has star.accom.ru tell mars.accom.ru
18:06:20.003855 arp who-has star.accom.ru tell mars.accom.ru
18:06:29.013354 arp who-has star.accom.ru tell mars.accom.ru
18:06:30.003406 arp who-has star.accom.ru tell mars.accom.ru
18:06:39.013371 arp who-has star.accom.ru tell mars.accom.ru
18:06:40.003912 arp who-has star.accom.ru tell mars.accom.ru
100% packet loss while ping.
Both hosts are connected via bnc-connector with the cable. They reside one
near another. Local network 192.168.2.0 works OK during long period of time
with nearly 10 hosts.
Best regards,
Irina
-----Original Message-----
From: Alfonso De Gregorio <[EMAIL PROTECTED]>
To: Irina Kotlova <[EMAIL PROTECTED]>
Cc: linux-net <[EMAIL PROTECTED]>
Date: Wednesday, June 09, 1999 3:05 PM
Subject: Re: RedHat network
>On Wed, 9 Jun 1999, Irina Kotlova wrote:
>
>> eth0 Link encap:Ethernet HWaddr 00:40:95:00:00:10
>> inet addr:192.168.2.1 Bcast:192.168.2.15 Mask:255.255.255.0
>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>> RX packets:17 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:7 errors:7 dropped:0 overruns:0 carrier:0
>> collisions:7 txqueuelen:100
>> Interrupt:5 Base address:0x320
>
>btw, pay attention to the mask used here and for your eth0:0.
>
>> , I have 7% packet loss during "ping" to the neighbour host in the same
>
>are the cables used sufficiently shielded? what about their lenght?
>
>Ciao
>
>
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