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Date: Sun, 30 Dec 2001 21:00:49 -0800 (PST)
From: Matthew Whelan <muttley@gotadsl.co.uk>
To: freebsd-gnats-submit@freebsd.org
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Subject: docs/33371: ipnat(5) requires mapped-to port in rdr rules
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>Number:         33371
>Category:       docs
>Synopsis:       ipnat(5) requires mapped-to port in rdr rules
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Dec 30 21:10:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Matthew Whelan
>Release:        4.5-PRERELEASE
>Organization:
>Environment:
FreeBSD ericnernie.doubleacts 4.5-PRERELEASE FreeBSD 4.5-PRERELEASE #3: Wed Dec 26 23:31:36 GMT 2001     Root@ericnernie.doubleacts:/var/cdr/usr/src/sys/MPW  i386
>Description:
The ipnat(5) man page is inconsistent with actual behaviour for redirection (rdr) rules.

From ipnat(5):


    redir ::= "rdr" ifname ipmask dport "->" ip [ "," ip ] [ ports ] options

and

    options ::= [ tcpudp ] [ rr ]

But if you try to omit the [ ports ]:

    root@ericnernie# ipnat -n -f -
    rdr tun0 0/32 port 7010-7019 -> 192.168.0.3
    1: No netmask supported in destination host for redirect
    1: syntax error in "rdr"
    rdr tun0 0/32 port 7010-7019 -> 192.168.0.3 tcp
    2: missing fields - 2nd port (tcp)
    2: syntax error in "rdr"
    rdr tun0 0/32 port 7010-7019 -> 192.168.0.3 port 7010 tcp
>How-To-Repeat:
N/A
>Fix:
Amend the manpage so that

   redir ::= "rdr" ifname ipmask dport "->" ip [ "," ip ] [ ports ] options

reads as
   redir ::= "rdr" ifname ipmask dport "->" ip [ "," ip ] ports options
>Release-Note:
>Audit-Trail:
>Unformatted:

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