Add ICMP types to list of information about each packet.
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=46182
@ -1,5 +1,5 @@
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.\"
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.\" $Id$
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.\" $Id: ipfw.8,v 1.50 1999/04/28 02:49:29 ghelmer Exp $
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.\"
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.Dd July 20, 1996
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.Dt IPFW 8 SMM
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@ -158,7 +158,38 @@ loose source route
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record route
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.Pq Ar rr ,
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and timestamp
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.Pq Ar ts
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.Pq Ar ts
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.It ICMP Types Pq Ar icmptypes
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One or more of the ICMP types: echo reply
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.Pq Ar 0 ,
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destination unreachable
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.Pq Ar 3 ,
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source quench
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.Pq Ar 4 ,
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redirect
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.Pq Ar 5 ,
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echo request
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.Pq Ar 8 ,
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router advertisement
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.Pq Ar 9 ,
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router solicitation
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.Pq Ar 10 ,
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time-to-live exceeded
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.Pq Ar 11 ,
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IP header bad
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.Pq Ar 12 ,
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timestamp request
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.Pq Ar 13 ,
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timestamp reply
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.Pq Ar 14 ,
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information request
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.Pq Ar 15 ,
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information reply
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.Pq Ar 16 ,
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address mask request
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.Pq Ar 17 ,
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and address mask reply
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.Pq Ar 18
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.El
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.Pp
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Note that may be dangerous to filter on the source IP address or
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