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Re: IP masquerading and ADSL
- To: Eran Tromer <eran(at-nospam)tromer.org>
- Subject: Re: IP masquerading and ADSL
- From: guy keren <choo(at-nospam)actcom.co.il>
- Date: Sun, 4 Feb 2001 01:18:04 +0200 (EET)
- cc: Dani Arbel <darbel(at-nospam)techunix.technion.ac.il>, linux-il <linux-il(at-nospam)linux.org.il>
- Delivered-To: linux.org.il-linux-il@linux.org.il
- In-Reply-To: <3A7C7415.6AC0AF46@tromer.org>
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
On Sun, 4 Feb 2001, Eran Tromer wrote:
> I tried reducing the MTU on the client box, and it doesn't help. I can't
> see why it should -- the problem occurs when the *remote* host is
> sending a large packet *into* the LAN.
just a small suggestion (even it doesn't settle well with your description
of packet sniffing): set the masquerading machine (the 'gateway') to
always defrag IP packets (echo "1" > /proc/sys/net/ipv4/ip_always_defrag).
i think i saw this as a required setting for masquerading linux gateways.
note that masquerading normally works in a manner transparent to remote
gateways (e.g. the ADSL modem and anything beyond it towards your
provider) so a different between the behaviour of the masquerading gateway
and the masqueraded client(s) is probably a misconfiguration on the local
LAN.
--
guy
"For world domination - press 1,
or dial 0, and please hold, for the creator." -- nob o. dy
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