From: "lu" <j.lu@tiesse.com>
To: netfilter@lists.netfilter.org
Subject: iptables masquerade cache problems
Date: Mon, 29 Sep 2003 10:23:21 +0200 [thread overview]
Message-ID: <001e01c38662$f2a93bc0$01070a0a@858sxt07> (raw)
Hi,
I have two lines that were masqueraded, one ADSL and another is ISDN for
backup. When the line ADSL is broken I switch the line to ISDN. The problem
is: when I use ping to test (ping -t from windows client), after the line
was switched to ISDN, the source address was still that of ADSL instead of
ISDN. But, when I stopped the ping from client for a while, all things went
well. It seems a problem of cache. What is the work-around for it? At a
moment I just down the ADSL interface. You can do this test with two lan
interfaces.
The Configuration is:
iptables -t nat -A POSTROUTING -o hsb0 -j MASQUERADE # for ADSL
iptables -t nat -A POSTROUTING -o ippp0 -j MASQUERADE # for ISDN
default gw dev was hsb0 (ADSL)
when ADSL was down then :
route del default dev hsb0
route add default dev ippp0
Best regards,
Jianliang Lu
TieSse s.p.a Ivrea (to) Italy
j.lu@tiesse.com
luj@libero.it
http://www.tiesse.com
next reply other threads:[~2003-09-29 8:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-29 8:23 lu [this message]
2003-09-29 11:04 ` iptables masquerade cache problems Mickael DILY
2003-09-29 11:19 ` Ray Leach
2003-09-29 13:17 ` Mickael DILY
2003-09-29 13:55 ` Ray Leach
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