Date: Thu, 20 Aug 1998 10:08:12 +0200 (MET DST) From: Anderl <andreas.gaertner.gp@oen.siemens.de> To: freebsd-isdn@FreeBSD.ORG Subject: tcpdump and isppp0 Message-ID: <Pine.GSO.3.96.980820100654.12206k-200000@s71ee26>
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Send mail to mime@docserver.cac.washington.edu for more info. ---559023410-992951867-903600258=:12206 Content-Type: TEXT/PLAIN; CHARSET=US-ASCII Content-ID: <Pine.GSO.3.96.980820100654.12206m@s71ee26> Date: Thu, 20 Aug 1998 10:04:18 +0200 (MET DST) From: Anderl <gax43544@egnetz.uebemc.siemens.de> To: isdn-freebsd@freebsd.org Subject: tcpdump and isppp0 hi folks, i recently successfully configured my i4bv0.63/fritz!card to work together with freebsd2.2.6. now i wanted to check the traffic going over the interface using 'tcpdump -i isppp0'. everything seemed fine. i started up the connection, put tcpdump onto the interface to listen and did a ping to a remote site. i stopped the ping and since then weird packets were wandering from the remote site to my machine and vice versa and wouldn't stop. also inetd showed traffic. when i then terminated tcpdump all grew quiet again. connection was still up and no traffic went over the interface. so something (i assume tcpdump) must effect or even generate traffic over isppp0 even if there is none or supposed to be none. how can that be? the attachment shows an extract of the problem given above. can you help? any hints are highly appreciated, thanks in advance, anderl ---559023410-992951867-903600258=:12206 Content-Type: TEXT/PLAIN; CHARSET=US-ASCII; NAME="dump.txt" Content-Transfer-Encoding: BASE64 Content-ID: <Pine.GSO.3.96.980820100418.12206j@s71ee26> Content-Description: MTk6MzU6MTIuMTIzNDQ4IFt8aXBdDQoxOTozNToxMi4xMzgyNzEgW3xpcF0N CjE5OjM1OjEyLjE0NjIzOSBbfGlwXQ0KMTk6MzU6MTIuMTY0MzkyIHRydW5j YXRlZC1pcCAtIDQ5MTU5IGJ5dGVzIG1pc3NpbmchMy40LjE5Mi4zNSA+IDUu Ni40My4xMTU6IChmcmFnIDI1Njo0OTEyNUAxNzYpIFt0b3MgMHgzXSBbdHRs IDFdDQoxOTozNToxMi4xNjQ0MjggW3xpcF0NCjE5OjM1OjEyLjE4NDYzNCB0 cnVuY2F0ZWQtaXAgLSA0OTE2MyBieXRlcyBtaXNzaW5nITMuNC4xOTIuMzUg PiA1LjYuNDMuMTE1OiAoZnJhZyAyNTc6NDkxMjVAMTQ0KSBbdG9zIDB4M10g W3R0bCAxXQ0KMTk6MzU6MTIuMTg0NjYyIFt8aXBdDQoxOTozNToxMy4xODA4 NjMgW3xpcF0NCjE5OjM1OjEzLjE5NzM3NCBbfGlwXQ0KMTk6MzU6MTMuMTk3 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