Re: Masquerading, portnumber wierdness!

From: Rick (rick@chillin.org)
Date: Wed May 17 2000 - 17:33:16 EST


On Wed, May 17, 2000 at 06:56:05PM -0300, Christian Robottom Reis wrote:

> My masqueraded boxes inside a simple ethernet network fail to connect to
> certain websites (nfs.sourceforge.net is a clean example). The gateway
>
> Originating request on an internal box: normal tcp handshake, connection
> ok, we send HTTP request, get the ack and then, _nothing happens_.
>
> The only difference I can spot is the high source port numbers, but this
> shouldn't be a problem, should it? Masqueraded connections go out from
> ports > 62000 and normal connections stay < 2000. But apart from that, I
> can see no real difference. The HTTP response is simply never sent!

What kernel is this? I'm getting this problem when connecting to Asheron's
Call with kernel 2.2.15. 2.2.13 works fine. Port usage is:

Initial UDP Outbound 207.46.204.* 9004
Subsequent UDP Outbound 207.46.204.* 9000, 9008, 9012
Subsequent UDP Inbound 207.46.204.* 9001, 9001, 9004, 9005, 9008, 9009, 9012, 9013

I haven't looked into it much, but there it is.

-- 
Rick (rick@chillin.org)
http://sasami.chillin.org

Six thousand years ago sitting around a campfire a storyteller could have stopped at any time and asked his audience how they wanted the story to come out. But he didn't because that would have ruined the story. -- Roger Ebert

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