No subject


Thu Jan 21 16:28:37 CST 2010


later).

# arping -c 1 192.168.0.10
ARPING 192.168.0.10 from 192.168.0.5 eth0
Sent 1 probes (1 broadcast(s))
Received 0 response(s)


Dump information from the 2106 via RS232.  The "Length" is the length
field in the ethernet frame and the "Data Length" is the actual
payload length calculated from what the CS8900A tells me is in the
ethernet frame. The "Data" is 32-bit chucks of the ethernet payload
dumped as hex.

What you see is the following:
1) Ethernet frame dump
2) Parsed ARP packet dump
3) Response ethernet frame dump
4) Response ethernet ARP packet dump

----------------------------------------------------------------------------------------------
Destination MAC: FF:FF:FF:FF:FF:FF
Source MAC: 00:E0:4C:F8:2A:21
Length: 0806
Data Length: 0000001C
Data:
00080100
01000406
F84CE000
A8C0212A
FFFF0500
FFFFFFFF
0A00A8C0

Got ARP frame
Data Length: 0000001C
Hardware Type: 0001
Protocol Type: 0800
Hardware Length: 0006
Protocol Length: 0004
Operation: Request
Sender Hardware Address: 00:E0:4C:F8:2A:21
Sender Protocol Address: 192.168.000.005
Target Hardware Address: FF:FF:FF:FF:FF:FF
Target Protocol Address: 192.168.000.010



Sending response

Destination MAC: 00:E0:4C:F8:2A:21
Source MAC: 01:02:03:04:05:06
Length: 00000806
Data Length: 0000001C
Data:
00080100
02000406
04030201
A8C00605
E0000A00
212AF84C
0500A8C0

Hardware Type: 00000001
Protocol Type: 00000800
Hardware Length: 00000006
Protocol Length: 00000004
Operation: Response
Sender Hardware Address: 01:02:03:04:05:06
Sender Protocol Address: 192.168.000.010
Target Hardware Address: 00:E0:4C:F8:2A:21
Target Protocol Address: 192.168.000.005
----------------------------------------------------------------------------------------------

All of that looks fine to me.  Send an ARP announcement is basically
the same but with THA=00:00:00:00:00:00 and SPA=TPA=192.168.0.10.

This is kind of a hail mary.  Is there something I'm missing to get
the switch to play correctly?  Thanks if you have any ideas!


Colin


More information about the Cialug mailing list