RE: Re: Cable & ADSL in one network

["Dean Smith" <ukha@xxxxxxx>]

How many PCs do you have ?. If both routers are up and active on the same
subnet then simply changing the default route on a PC from one to the other
will make sure your traffic uses your link of choice.

There are some things to be wary of though.

DNS: You need be able to get to your configured DNS servers through either
ISP.
Mail: As, above you need to be able to get to both your POP (inbound) and
SMTP (outbound) mail servers from either link to avoid extra config
changes.
The former is not usually a problem, the second is, though there are ways
round it. e.g. Authenticated SMTP login from your mail ISP. Freeserve
currently appears to transparently redirect all SMTP connections to its own
Mail servers which can be useful as its saves you re-configuring your end.

You can change the default route from a batch file so should be easy to
automate on a few PCs depending on OS.

Dean


-----Original Message-----
From: Derek Erb [mailto:dce42@xxxxxxx]
Sent: 27 September 2003 16:09
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: Cable & ADSL in one network


--- In ukha_d@xxxxxxx, "Alex Monaghan" <ha@m...> wrote:

> Why not just setup both interfaces to route to 0.0.0.0 and then
set the
> metric higher for the least preferred route, then if the lowest
cost route
> was unavailable the other one would get used.

I have to admit I like this one most as it starts to head in the
optimal direction I'm looking for...

Basically I have 2 options:
1) The easiest: Configure both routers for the same IP address and
just leave one unplugged and/or off.  Then when one conks out I just
unplug it and plug in the other one.

2) The more complicated:  I'd love to have my computers running
through the ADSL line and the family computers running through the
cable line while still keeping them both on the same network.  Then
if one or the other conks out I would switch all to one router
temporarily.

The problem with simply setting a higher metric, from what I can
see, is that when one or the other technology doesn't work it
doesn't stop responding.  The router thinks it's still connected and
can often even ping the ISP's certain connection point.  But it
can't go further.  I think from the router's point of view this
would still be considered as a valid connection and it would not
fall down to the next router in the metric table...

> I did contemplate having ADSL as well, but can't really justify
the expense
> of NTL & BT for "playing about" (well that's what SWMBO
thinks of
it anyway
> !)

Luckily I can justify the Internet as a business expense... even if
I do "play about" on it an awful lot {vbg}

I'm looking forward to having a fully networked house so I can play
online games with the kids {g} --- this brings me to my OT thread...



UKHA 2004: 15th and 16th May 2004

http://www.automatedhome.co.uk
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