Hi, tcpdump (and other programs using libpcap with IP proto filter) behaves strangely (as it seems to me) on an interface with no IPv4 address assigned..
tcpdump -ni xl0 tcpdump: WARNING: xl0: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on xl0, link-type EN10MB (Ethernet), capture size 96 bytes 04:08:01.207673 IP 62.183.127.130.49192 > 85.118.141.1.80: . ack 4143124359 win 33304 <nop,nop,timestamp 460213338 604944> 04:08:01.209350 IP 62.183.127.130.49192 > 85.118.141.1.80: P 0:609(609) ack 1 win 33304 <nop,nop,timestamp 460213338 604944> 04:08:01.415512 IP 62.183.127.130.49192 > 85.118.141.1.80: . ack 989 win 33060 <nop,nop,timestamp 460213358 604944> 04:08:01.418589 IP 62.183.127.130.49192 > 85.118.141.1.80: . ack 1989 win 33054 <nop,nop,timestamp 460213359 604944> 04:08:01.421370 IP 62.183.127.130.49192 > 85.118.141.1.80: . ack 2989 win 33054 <nop,nop,timestamp 460213359 604944> 04:08:01.424297 IP 62.183.127.130.49192 > 85.118.141.1.80: . ack 3989 win 33054 <nop,nop,timestamp 460213359 604944> etc. and using tcpdump -ni xl0 ip (any IP proto related filter here) gives no output at all besides the warning line and info. host must just collect IP packets, which are copied to this interface from another port. can this be solved? and any reason if not. FreeBSD-5 with tcpdump version 3.8.3 +libpcap version 0.8.3 FreeBSD-6 with tcpdump version 3.9.1 + libpcap version 0.9.1 _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
