Re: Routing and ARP Problem - HELP

From: Adem Sen (senadem_at_web.de)
Date: 03/07/05 

Date: Mon, 7 Mar 2005 19:17:34 +0100

In article <Ob0Xd.235$Jl1.70@read3.inet.fi>,
tauno.voipio@iki.fi.NOSPAM.invalid says...
> Adem Sen wrote:
> > Hello Newsgroup,
> >
> > I could not find any solution for my problem, and hope to fine it here.
> >
> > Some specifications:
> > Genttoo Linux (2.6.8.1) running on HP ProLiant DL 360 G4 2x3.0 GHz
> > DualCore XEON
> > 1 x 2 Port OnBoard Mobo nic (tg3 module)
> > 2 x 4 Port Intel Pro 1000 (So we have 10 eth Interfaces - from eth0 to
> > eth9)
> >
> > My Problem was, that eth0 had answered to any ARP Request, which was
> > sent to eth1 - eth9 for example. So it answered every arp request for he
> > other Interfaces.
> >
> > I followed these Steps at:
> > http://forums.gentoo.org/viewtopic.php?p=2149737#2149737 and now my eth0
> > interface answers only to ARP Requests, which are explicity for itself.
> >
> > But now, the other Interfaces do not function correctly. When I try to
> > ping eth1 for example, I see the ARP Request (tcpdump) on eth1 but eth1
> > does not answer the ARP REQUEST, so no IP connection gets established.
> >
> > Can anyone please give me a hint? What is wrong here? Why do my other
> > eth Interfaces no more answer to ARP Requests? My eth0 - and only eth0 -
> > still function as it should.
> >
>
> Please post the output of the commands (as root):
>
> ifconfig -a
> route -n
> so your setup can be verified.

Thanks, hee is "route -n":

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.72.0.0 0.0.0.0 255.255.248.0 U 0 0 0 eth0
10.72.0.0 0.0.0.0 255.255.248.0 U 0 0 0 eth1
10.72.0.0 0.0.0.0 255.255.248.0 U 0 0 0 eth2
127.0.0.0 127.0.0.1 255.0.0.0 UG 0 0 0 lo
0.0.0.0 10.72.0.254 0.0.0.0 UG 0 0 0 eth0

And here is "ifconfig -a":

eth0 Link encap:Ethernet HWaddr 00:11:85:C4:06:0B
          inet addr:10.72.0.135 Bcast:10.72.0.255 Mask:255.255.248.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:5769901 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5329748 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:923114800 (880.3 Mb) TX bytes:604379903 (576.3 Mb)
          Interrupt:5

eth1 Link encap:Ethernet HWaddr 00:11:85:C4:06:0A
          inet addr:10.72.0.136 Bcast:10.72.0.255 Mask:255.255.248.0
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Interrupt:5

eth2 Link encap:Ethernet HWaddr 00:04:23:B1:89:C8
          inet addr:10.72.0.137 Bcast:10.72.0.255 Mask:255.255.248.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:354741 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1017 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:23276340 (22.1 Mb) TX bytes:65088 (63.5 Kb)
          Base address:0x5000 Memory:fdee0000-fdf00000

eth3 Link encap:Ethernet HWaddr 00:04:23:B1:89:C9
          inet addr:10.72.0.138 Bcast:10.72.0.255 Mask:255.255.255.255
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Base address:0x5040 Memory:fdec0000-fdee0000

eth4 Link encap:Ethernet HWaddr 00:04:23:B1:89:CA
          inet addr:10.72.0.139 Bcast:10.72.0.255 Mask:255.255.255.255
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Base address:0x5080 Memory:fdea0000-fdec0000

eth5 Link encap:Ethernet HWaddr 00:04:23:B1:89:CB
          inet addr:10.72.0.140 Bcast:10.72.0.255 Mask:255.255.255.255
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Base address:0x50c0 Memory:fde80000-fdea0000

eth6 Link encap:Ethernet HWaddr 00:04:23:B1:8A:24
          inet addr:10.72.0.141 Bcast:10.72.0.255 Mask:255.255.255.255
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Base address:0x6000 Memory:fdfe0000-fe000000

eth7 Link encap:Ethernet HWaddr 00:04:23:B1:8A:25
          inet addr:10.72.0.142 Bcast:10.72.0.255 Mask:255.255.255.255
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Base address:0x6040 Memory:fdfc0000-fdfe0000

eth8 Link encap:Ethernet HWaddr 00:04:23:B1:8A:26
          inet addr:10.72.0.143 Bcast:10.72.0.255 Mask:255.255.255.255
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Base address:0x6080 Memory:fdfa0000-fdfc0000

eth9 Link encap:Ethernet HWaddr 00:04:23:B1:8A:27
          inet addr:10.72.0.144 Bcast:10.72.0.255 Mask:255.255.255.255
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
          Base address:0x60c0 Memory:fdf80000-fdfa0000

imq0 Link encap:UNSPEC HWaddr 00-00-FF-FF-FF-FF-00-00-00-00-00-00-
00-00-00-00
          NOARP MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:30
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

imq1 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-
00-00-00-00
          NOARP MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:30
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:27578519 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27578519 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1275092683 (1216.0 Mb) TX bytes:1275092683 (1216.0
Mb)

teql0 Link encap:UNSPEC HWaddr 00-00-FF-00-00-00-00-00-00-00-00-00-
00-00-00-00
          NOARP MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

Regards, 

-- 
Adem Sen

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