[ELDK] ARP Messages

[Luigi Rizzi]

Hello,

I'm facing a strange behave on the ARP answers from  my TQM885D module (U-boot 1.3.0-rc2 and kernel 2.4.25).
When I connect both Ethernet interfaces, for example configured as follow:

Eth1:    IP 192.168.0.126           MAC 00:23:DE:CC:12:01
Eth2:    IP 192.168.11.126         MAC 00:23:DE:CC:12:02

If an ARP request arrives from the net the module sends two answers (from the two interfaces)  with the same IP and different MACs.

Here the packets I can see on the Ethernet sniffer:

Source                         Destination       Protocol    Info
------------------------------------------------------------------------------------------------------------------------------------------------
CompaqHp                   Broadcast         ARP         Who has 192.168.0.126?
00:23:DE:CC:12:01       CompaqHp        ARP         192.168.0.126 is at 00:23:DE:CC:12:01
00:23:DE:CC:12:02       CompaqHp        ARP         192.168.0.126 is at 00:23:DE:CC:12:02


Anyone can tell me the reason why I'm getting also the second answer (of course a wrong answer) ?

Best Regards,
Luigi



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Luigi Rizzi
Hardware & Firmware engineer
ALGORAB srl
Via Negrelli 21/13
38015 Lavis (TN) - ITALY
Tel +39 0461 242482
Fax +39 0461241512
Skype luigi.rizzi.algorab
email rizzi at algorab.com<mailto:rizzi at algorab.com>
www.algorab.com<http://www.algorab.com>



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