Dear All;
When receiving packets from a SOCK_PACKET type of socket, bound to
the lo device, I seem to get two copies of any packet that goes through
the device. (actually, it doesnt matter if its is specificly bound to
the lo device, I always get 'two for one' from lo )
eg. (tcpdump uses libpcap0.4a6, which gets its packets this way)
tcpdump -i lo
ping -c1 localhost
tcpdump: listening on lo
22:52:10.920000 localhost > localhost: icmp: echo request
22:52:10.920000 localhost > localhost: icmp: echo request
22:52:10.920000 localhost > localhost: icmp: echo reply
22:52:10.920000 localhost > localhost: icmp: echo reply
(Ive also written my own code to read this, and the repeated packets are
identical.)
Can anyone explain this to me?
Im running 2.2.5 and loading af_packet as a module.
appreciative of any information;
Paul
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