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Add a bugs notice indicating that the SEESENT flag may behave incorrectly

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on interfaces with hardware loopback, and point-to-point interfaces
(unclear why that is, may need to be tracked down).
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rwatson 2002-03-13 00:04:53 +00:00
parent 02ff3db358
commit 7888fb8301
1 changed files with 5 additions and 0 deletions
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share/man/man4/bpf.4
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@ -718,6 +718,11 @@ all files must assume that the interface is promiscuous, and if
so desired, must utilize a filter to reject foreign packets.
.Pp
Data link protocols with variable length headers are not currently supported.
.Pp
The SEESENT flag has been observed to work incorrectly on some interface
types, including those with hardware loopback rather than software loopback,
and point-to-point interfaces. It appears to function correctly on a
broad range of ethernet-style interfaces.
.Sh HISTORY
The Enet packet filter was created in 1980 by Mike Accetta and
Rick Rashid at Carnegie-Mellon University. Jeffrey Mogul, at