Re: Static v Dynamic IP on dial-up?

David Luyer (luyer@ucs.uwa.edu.au)
Wed, 21 Oct 1998 14:25:17 +0800

> My experience (with an ISP that explicitly allows multi-connects) has
> been that wish static IP's, as soon as the second modem is
> authenticated, both drop because of protocol violations connected with
> having duplicated IP's...
>
> With the same ISP, when we switched to dynamic IP's, everything
> started working as it's supposed to...

Then they don't support MLPPP, or they don't support multi-chassis MLPPP
and your calls were routed to two separate boxes, or you weren't using
software that supports MLPPP. MLPPP bundles all share the same IP address
and hence you want to be static to use them, although it probably works with
passing the address in the PPP protocol too.

I'm assuming EQL != MLPPP, though. Win98 supports MLPPP, I'd hope we do too,
or at least will in 2.2.x.

(MLPPP ==> multi-link ppp. multi-chassis multi-link PPP ==> terminal servers
which can do multi-link ppp when the calls come into separate chassis -- most
terminal servers now on the market can I think. I don't know if Linux is able
to do this bit, I haven't looked at it recently.)

David.

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