Date: Fri, 6 Mar 1998 07:28:54 +1000 From: Stanley.Hopcroft@ipaustralia.gov.au To: freebsd-questions@FreeBSD.ORG Subject: Tcpdump problems: LLC2 decode is incorrect ? Message-ID: <4A2565BE.00756170.00@notes.aipo.gov.au>
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Dear Ladies and Gentlemen, I am writing to ask if any one has found problems with the LLC2 decode in tcpdump. tcpdump writes llc2 headers with protocols such as . fddi . 802.3/SNAP/IP . Ethernet | 802.3/LLC2/NetBEUI Here is an example where tcpdump (-x -s200) decodes the control bytes 0x01e5 as an RR with Number Received 0, whereas I think it should be an RR with Number Received = 114 (ie hex(e5 >>1)) 18:42:22.789598 0:20:35:43:3f:e3 > 0:20:35:71:f2:e8 sap f0 rr (r=0,C) len=42 f0f001e5000000000000000000000000 rr Nr 114 I think tcpdump is a wonderful tool so its more likely I am wrong. The FreeBSD 2.2.5 tcpdump seems to behave the same as the latest version (3.46 ?) from ftp.ee.lbl.gov. Thank you, Yours sincerely To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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