From owner-freebsd-hackers  Thu May 21 02:05:08 1998
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From: Don Lewis <Don.Lewis@tsc.tdk.com>
Message-Id: <199805210904.CAA03371@salsa.gv.tsc.tdk.com>
Date: Thu, 21 May 1998 02:04:35 -0700
In-Reply-To: Mike Smith <mike@smith.net.au>
       "Re: Questions about Packet Filter" (May 20, 11:45am)
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To: Mike Smith <mike@smith.net.au>, C L <lc001@yahoo.com>
Subject: Re: Questions about Packet Filter
Cc: freebsd-hackers@FreeBSD.ORG
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On May 20, 11:45am, Mike Smith wrote:
} Subject: Re: Questions about Packet Filter
} 
} > 2. Solaris seems having a similar soft-driver called "Network
} > Interface Tap". Anybody use that before? Can it monitoring both
} > incoming and outgoing packages?
} 
} Yes.

SunOS 4.x NIT can only look at inbound packets.  This is a pain because if
you have only one Sun, you can't examine both sides of the conversation.
In Solaris 2.x the equivalent feature is called Data Link Provider Interface.
I don't know whether it has the same limitation.

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