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Date: Wed, 26 Jul 2000 01:35:17 +0200 (CEST)
From: zaks@prioris.mini.pw.edu.pl
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Subject: bin/20188: tcpdump -d enables promisc mode on tun0 and leaves it
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>Number:         20188
>Category:       bin
>Synopsis:       tcpdump -d enables promisc mode on tun0 and leaves it
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jul 25 16:40:01 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Slawek Zak
>Release:        FreeBSD 4.1-RC i386
>Organization:
Warsaw Univ. of Technology
>Environment:

	P-t-P link using /usr/sbin/ppp

>Description:

	Tcpdump in BPF code dump mode (-d) enables tun0 promiscious mode
	and leaves it like this, though on ethernet interface promisc mode
	is disabled when it exits.

>How-To-Repeat:

	# tcpdump -d -i tun0 icmp	# Bug
	# tpcdump -d -i fxp0 icmp 	# or any other Ethernet interface
					# gets promiscious mode enabled
					# and disabled.

>Fix:

	Fix tcpdump handling of PPP interfaces (not only this bug is
	pending)


>Release-Note:
>Audit-Trail:
>Unformatted:


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