[plug] ADSL failover

[Glen Lewis]

On Wed, 15 Aug 2001, Simon Scott wrote:

> 	Funny, they are getting iinet adsl, but i thought iinet were using
> Hel$tra infrastructure? I had bigpong adsl and it sucked the big one.

Most of the issues on Telstras ADSL network are downstream from the point
where other ISP's get their PVC.  We (iiNet) have had substantially less
issues than Telstra - however much of that is the result of giving a fixed
IP address to each of the aDSL customers, rather than having the PPPoE and
all those authentication issues.

Glen


> 
> 	Yeh, I think the if-down/up scripts will be the way to go. Or
> possibly a seperate daemon that monitors these things and makes sure one or
> the other is up.
> 
> 	Altho Im going to look at Pizzabox and perhaps it has some way for
> this to be handled. Even manually would be ok I guess.
> 
> 	They wont be serving, so it doesnt matter. 
> 
> 	Thanks
> 
> 
> 
> 	From:	James Bromberger <james at rcpt.to> on 14/08/2001 04:14 PM
> 	Please respond to plug at plug.linux.org.au@SMTP at Exchange
> 	To:	plug at plug.linux.org.au@SMTP at Exchange
> 	cc:	 
> 
> 	Subject:	Re: [plug] ADSL failover
> 
> 	On Tue, Aug 14, 2001 at 03:25:46PM +0800, Simon.Scott at flexiplan.com
> wrote:
> 	> A friend of mine is setting up a linux box to act as a gateway for
> a small
> 	> network. He plans on getting ADSL, as well as a dialup account
> (due to ADSL's
> 	> problematic nature).
> 
> 	I've had very few problems with my iiNet DSL...
> 
> 	> Has anyone written/heard of a script which will automatically dial
> 
> 	> in after ADSL fails (plus a few retries)?
> 
> 	/etc/network/if-down.d or similar. You can tell pppd to do something
> 
> 	when it exists. Why not tell it to pick up the modem!
> 
> 	> If not, can anyone think of the best way of acheiving this? It
> would be 
> 	> nice to
> 	> go the other way too, where the script would start a cron job to
> test ADSL
> 	> connectivity (maybe via pppoe switches to see if the access
> concentrator is
> 	> visible) every now and then and if ADSL comes up, drop dial up.
> 	> 
> 	> As an aside, if I had a dialup account and ADSL up at the same
> time, what would
> 	> the routing issues be? (ie which would take preference?)
> 
> 
> 	Evil. Assuming you are calling the same service provider, you can
> try and 
> 	get them to figure this out. You may have to delve into BGP
> broadcasts if 
> 	you have a protable network block, or Dynamic DNS, if you're hosting
> services.
> 
> 	If you're just putting web traffic over it, and not serving stuff
> up, 
> 	then it should matter if you change IP addresses.
> 
> 	-- 
> 	 James Bromberger <james_AT_rcpt.to> www.james.rcpt.to
> 
> 	 Remainder moved to http://www.james.rcpt.to/james/sig.html
> 
> 
> 
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