i386/93237: ipfw fwd not forward packets from local interfaces
Mikhail
myicq1 at mail.ru
Sun Feb 12 10:00:17 PST 2006
>Number: 93237
>Category: i386
>Synopsis: ipfw fwd not forward packets from local interfaces
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Feb 12 18:00:16 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Mikhail
>Release: FreeBSD 6.0
>Organization:
ZAO OKB RITM
>Environment:
FreeBSD gate.scenar.com.ru 6.1-PRERELEASE FreeBSD 6.1-PRERELEASE #2: Sun Feb 12 16:06:49 UTC 2006
>Description:
gate have two external interfaces (80.68.4.2/255.255.255.240(rl0), 213.24.20.34/255.255.255.252 (ed0)) and one interface with ip from the subnet 80.68.3.104/255.255.255.248 (80.68.3.105).
default gateway is 213.24.20.33
subnet 80.68.3.104/255.255.255.248 must forward through 80.68.4.1
for forwarding packets i have next rules in my rc.firewall:
fwd 80.68.4.1 ip from 80.68.4.2 to any out via rl0
fwd 80.68.4.1 ip from 80.68.3.104/29 to any out via rl0
transmit information from/to internet to/from my ip's was successfully, except next adresses: 80.68.3.105 and 80.68.4.2.
when i ping 80.68.3.105 from internet i see echo-replays for my request (by tcpdump) on interface ed0.
it look like as known problem with FreeBSD 5.3 beta 4:
"Description
'ipfw fwd' don't forward packet for specified destination
when packet ip_src is the same machine's.
"
>How-To-Repeat:
from start
>Fix:
i don't know.
Thank you for your work!!!
>Release-Note:
>Audit-Trail:
>Unformatted:
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