Multiple PPP links to different providers

Multiple PPP links to different providers

Post by Liam Redmon » Sat, 09 Oct 1999 04:00:00


 I have an ISDN/TA and a 56K modem both connected to
 my FreeBSD3.2 box. I have two ISP accounts Demon and
 Eidos. I have configured user PPP with 2 tunnel devices
 to work with TA to Demon and the 56k modem to Eidos.
 Both these configurations work and I can connect to both
 simultaneously. (Incidentally, I'm not paying for the line)

 My question is what can I do to route outbound packets
 to the correct interface to maximize my bandwidth ?

 I guess I need to configure 'routed' but this will probably
 force the lines to be connected all the time for route information

 What I want to do is be totally disconnected when no outbound
 traffic is present, to connect to the ISDN first when traffic
 arrives and set this as the default route, when the bandwidth usage
 peaks at a set level connect with the modem and inteligentally
 route packets to the correct interface.

 Is any of this possible, or is my head in the clouds ?

 I know this probably sounds mad, but I have the equipment so
 I want to use it. I'm not keen on throwing out my 56k modem
 when even with my ISDN I need more bandwidth. One worry
 is that running 'routed' might increase the bandwidth requirement
 for it's routing information that the whole thing is not worth doing.

 I thought about MultiLink/PPP since demon is about to launch this
 but I will still want my modem on as well.

Thanks in advance,

Liam D. Remond.


1. How to setup RHCL 2.0 with 2 different PPP providers


I have RedHat 2.0 installed.  I currently have PPP working with Cruzio
(my home/leisure PPP provider) but I also want to be able to connect
to work via PPP.  Both Cruzio and work assign me a fixed hostname and
IP address (albeit different one's).

How should I set up my system so that I can call either PPP link and
have everything (or most everything) work?

what do I do about sendmail?  I'd like to be able to send mail through
either link, with the return address of my work/PPP sent mail being
different than my Cruzio sent mail.


Version: 2.6.2
Comment: Processed by Mailcrypt 3.4, an Emacs/PGP interface


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