i386/86072: Packet Filter rule not working properly (with SYNPROXY option)

Chris fb at crou.net
Tue Sep 13 07:20:07 PDT 2005


>Number:         86072
>Category:       i386
>Synopsis:       Packet Filter rule not working properly (with SYNPROXY option)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Sep 13 14:20:05 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Chris
>Release:        Freebsd 6 BETA4
>Organization:
>Environment:
FreeBSD <hostname> 6.0-BETA4 FreeBSD 6.0-BETA4 #0: Sun Sep 11 08:36:23 EDT 2005      
>Description:
I had that rule on my 5.4:
pass in log on $if1 proto tcp from x.x.x.x to y.y.y.y port 22 flags S/AUPRFS synproxy state

This rule was working properly until I upgrade to 6 Beta 4.  I can't connect anymore from x.x.x.x to the server using SSH.

To fix the problem, I replace the synproxy option with keep state.
>How-To-Repeat:
      
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted:


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