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ARP responses

Subject: ARP responses
Date: 13 Oct 2004 02:18:39 -0000


Hi All,
I am trying to write a small program to implement proxy arp using libnet and 
libpcap.  So far I was able to write arp responses to the wire; but for some 
reason, my host is not seeing those responses.  But I was able to see those 
packets on the wire using tcpdump though.  

Here's what tcpdump shows me:

20:58:27.488240 0:10:a4:8b:9e:c9 ff:ff:ff:ff:ff:ff 0806 42: arp who-has 
xx.xx.xx.xx tell xx.xx.xx.xx
                         0001 0800 0604 0001 0010 a48b 9ec9 xxxx
                         xxxx 0000 0000 0000 xxxx xxxx
20:58:27.488540 0:10:a4:8b:9e:c9 0:10:a4:8b:9e:c9 0806 60: arp reply 
xx.xx.xx.xx is-at 0:10:a4:8b:9e:c9
                         0001 0800 0604 0002 0010 a48b 9ec9 xxxx
                         xxxx 0010 a48b 9ec9 xxxx xxxx 0000 0000
                         0000 0000 0000 0000 0000 0000 0000
This is how my arp cahce looks like 

? (1.1.1.1) at 02:00:6D:2B:C7:E8 [ether] on eth0
? (2.2.2.2) at <incomplete> on eth0

Any advice is greatly appreciated.

Thanks
Mohan

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