On the advise of a coworker I'm resending this message with
a more sexy Subject line. The previous one did sound too newbieish...
Hi List,
I have the following setup:
One host with two interfaces (eth0, eth1):
eth0 Link encap:Ethernet HWaddr 00:E0:4C:71:05:92
inet addr:10.1.12.87 Bcast:10.1.12.255 Mask:255.255.255.0
inet6 addr: fe80::2e0:4cff:fe71:592/10 Scope:Link
UP BROADCAST NOTRAILERS RUNNING MTU:1500 Metric:1
RX packets:4512 errors:0 dropped:0 overruns:0 frame:0
TX packets:4034 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:345507 (337.4 Kb) TX bytes:407841 (398.2 Kb)
Interrupt:11 Base address:0x5000
eth1 Link encap:Ethernet HWaddr 00:E0:4C:71:05:91
inet addr:10.1.12.151 Bcast:10.1.12.255 Mask:255.255.255.0
inet6 addr: fe80::2e0:4cff:fe71:591/10 Scope:Link
UP BROADCAST NOTRAILERS RUNNING MTU:1500 Metric:1
RX packets:2709 errors:0 dropped:0 overruns:0 frame:0
TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:239132 (233.5 Kb) TX bytes:2646 (2.5 Kb)
Interrupt:10 Base address:0x7000
when I do
ping -I eth0 10.1.12.151
I don't get a reply but ARP requests like this:
19:23:59.219402 arp who-has 10.1.12.151 tell 10.1.12.87
19:24:00.219402 arp who-has 10.1.12.151 tell 10.1.12.87
19:24:01.219402 arp who-has 10.1.12.151 tell 10.1.12.87
19:24:02.219402 arp who-has 10.1.12.151 tell 10.1.12.87
So the host tries to resolve its own MAC address and does
not answer itself. Manually setting the ARP entry fails
as well.
Question: Should this work at all? If yes, is there a fix?
Regards
J?rg
=====
--
Regards
Joerg
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Hi Lists,
I worked around my previous problem by deleting the routing
entry that sent packets for my subnet directly to their
destination. Using our default router works (somewhat).
I can now see the ICMP packets on eth1:
jpo> /sbin/ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:E0:4C:71:05:92
inet addr:10.1.12.87 Bcast:10.1.12.255 Mask:255.255.255.0
eth1 Link encap:Ethernet HWaddr 00:E0:4C:71:05:91
inet addr:10.1.12.151 Bcast:10.1.12.255 Mask:255.255.255.0
jpo> netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
0.0.0.0 10.1.12.1 0.0.0.0 UG 40 0 0
eth0
jpo> ping -I eth0 10.1.12.151
jpo> sudo /usr/sbin/tcpdump -i eth1 host 10.1.12.151 -n
tcpdump: listening on eth1
20:40:46.289402 10.1.12.87 > 10.1.12.151: icmp: echo request (DF)
20:40:47.289402 10.1.12.87 > 10.1.12.151: icmp: echo request (DF)
20:40:48.289402 10.1.12.87 > 10.1.12.151: icmp: echo request (DF)
20:40:49.289402 10.1.12.87 > 10.1.12.151: icmp: echo request (DF)
20:40:50.289402 10.1.12.87 > 10.1.12.151: icmp: echo request (DF)
It seems that no answer is sent at all. Any ideas?
Regards
J?rg
=====
--
Regards
Joerg
__________________________________________________
Do You Yahoo!?
Yahoo! Movies - coverage of the 74th Academy Awards?
http://movies.yahoo.com/