> but what is the way to use two ISPs at the same time? if there is one
> default route, then everytime the data is sent through that route, and if
we
> set a specific route, then for every site we have to set a specific route
> for the site we want to access?
I seriously don't know man. Since no one else is replying, I will throw out
some ideas, but no guarnette that they are right or even phyiscally
possiable.
There is something called "metric" in the default routing table. Basically
you can set more than 1 gw per network and it will try the gw with the
lowest metric first (IIRC). For example (don't hold me to correct sytnax
here, doing it from memory)
route add default gw 192.168.17.2 metric 1
route add default gw 10.102.18.56 metric 2
This way if you try to access anything that doesn't have a static route (ie.
default route) it will first try to route out though the 192.168.17.2 gw, if
that doesn't work it will then try 10.102.18.56 gw.
But IIRC this isn't load balancing, it is more of a "fail safe" function.
If you want to send out both cable modems at once, you will have do some
really fancy, something over my head. You might want to try searching for:
multihome
multihomed
esl
loadblancing
Also you might want to try and find a OSPF (Open Shortest Path First) daemon
that would dynamically build a routing table for you on the fly.
>
> ------Original Message------
> From: "Jack Barnett" <[EMAIL PROTECTED]>
> To: Bogdan Taru <[EMAIL PROTECTED]>, Jos Lemmerling <[EMAIL PROTECTED]>
> Sent: August 8, 2000 3:50:56 PM GMT
> Subject: Re: Two default routes?
>
>
>
> I don't think you can have to default routes (atleast this is the way I
> understand it, I could be wrong.) but you can set more then 1 static
routes.
> For example say
>
> eth0 - 192.168.17.2
> eth1 - 10.10.10.2
>
> (I know this are bunk ip's, just for example)
>
> everything that goes to 192.168.17.** should be faster if routed out
though
> eth0, so we can put that route in:
>
> route add -net 192.168.17.0 gw 192.168.17.2 eth0
>
> (check sytnax, can't remember to well from memory)
>
> and everything that goes to 10.10.10.** should be faster if routed out
> though eth1, so we could put that route in:
>
> route add -net 10.10.10.0 gw 10.10.10.2 eth1
>
> Say slashdot is 4 hops from eth1 and 102 from eth0, so it should be faster
> if we route all packets to/from slashdot though eth1
>
> route add -net 64.28.67.0 gw 10.10.10.2 eth1
>
> You could add static routes like this.
>
> Any one knows if this works, it sound logical right?
>
> Jack
>
> >
> > Hi, Jos,
> >
> > The problem is that I don't do dial-up. My two connections are
permanent
> > (leased line and cable), so I need to use both of them simultaneous. Any
> > ideas welcomed!
> >
> > bogdan
> >
> > On Mon, 7 Aug 2000, Jos Lemmerling wrote:
> >
> > > On Mon, 7 Aug 2000, Bogdan Taru wrote:
> > >
> > > >
> > > > Hello everyone,
> > > >
> > > > Gotta question: I've got a machine which is connected to 2 ISPs.
So,
> what
> > > > can I do in order to use both of them? I've tryied two default
> gateways,
> > > > but it always uses the last inserted. I've tryied to use 'routed',
but
> > > > something seems to be missing...
> > > > Any suggestions?
> > > >
> > > > bogdan
> > > >
> > >
> > > On my machine i've three providers working 'together'; in my ip-up
> script
> > > the correct route is added, and in ip-down the route is deleted again.
> > >
> > > You may have to use sudo or something (i needed it to run the command
> > > 'route del default').
> > >
> > >
> > > Greetz Jos Lemmerling
> > >
> > >
> > >
>
>
>
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