[NTLUG:Discuss] How does one configure PPPD to be a backup internet connection in case DSL goes down?

[Steve]

Egome wrote:
> 
> I'm tired of the stupid outages, and would like to have a 
> backup dial-up solution.  I can get dialup ppp working, 
> or I can route through DSL, but where do I start in 
> regards to being able to DETECT that DSL is down.?

I have cable modem as well as DSL modem.  I created a ping script which
pings the immediate gateway of each broadband modems' connection.

When both pings to its respective gateway fail, the script proceeds to
fire up the dialup as usual.  Same thing for teardowns.

Using the ifconfig's IFF_UP for either ethernet (ie. eth0) or internal
ADSL (ie. nas1) network interface is not sufficient to detect such
outage.

I've tried to arrange for RIPv2 or even EBGP with my broadband providers
and I got laughed at.  Pity, this should be the next hot-ticket demand
after getting a broadband connection.


This is only viable solution I know.

Steve
-- 
Steve Egbert                      Skytel: 888-463-7343 
Sr. Embedded Network S/W Engineer FAX: 972-991-3887
Efficient Networks, Inc.          http://www.efficient.com
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