I've got some speculations on this, but not a solution.
>
> Greetings all
>
> First off, thanks to all the list contributors who got me started
> with diald - expecially masquerade with dynamic addresses. So
> obvious to use the ip-up and ip-down bits of pppd when its
> pointed out!!
>
> Here's one thats got me stumped though.
>
> I'm using the standard filters for diald and it works for all
> protocols except nntp on port 119 from a LAN PC.
>
> I'd have thought that the catchall case would bring the link up but
> for some reason, Outlook Express (on one of the LAN PCs)
> caches the IP address of the news server and so doesn't make
> a domain request at the start of the connection.
>
Well, there's your problem! Get rid of outlook!
Ok, seriously now.
My guess is that what happens is that since OE doesn't do the
dns lookup, it goes right to sending a syn packet to bring up
the link. However, since your dynamic ip address hasn't been
assigned, the syn packet goes out with the temp ip address
in the diald control file, so the ack never comes back.
There is a dynaddr flag somewhere in /proc that changes
this behavior. Can anyone shed some more light on this?
I haven't had to use it, since at all my sites DNS is the
first thing to go, and UDP brings up the link before the
TCP connections start.
-- cary
> The news client is fine once the link is up so the routing must be
> OK - is there something odd about the 'syn' coming from OE
> such that diald *doesn't* initiate the link up? Or am I missing
> another abvious one here...
>
> Hope for a reply :-))
>
> A quickly balding
> Robin.
>
>
>
>
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