[Sunhelp] Confused about routing.

[Kevin Stevens]

Thanks, that sounds like what I was looking for!  The added routing info was 
intended to just paint the full picture in case there was something odd 
going on.

KeS


>From: "Rob Staab" <rstaab at actbig.com>
>Reply-To: sunhelp at sunhelp.org
>To: <sunhelp at sunhelp.org>
>Subject: RE: [Sunhelp] Confused about routing.
>Date: Thu, 24 Aug 2000 16:31:48 -0400
>
>
>ndd -set /dev/ip ip_forwarding 1
>
>Will turn IP forwarding on between Sun interfaces. This can be made
>permanent by editing the /etc/init.d/inetinit startup script.
>
>I believe this is what you're looking for then. Sorry, the extra routing
>information threw me.
>
>- Rob Staab
>
> > Ok... let me put it this way.  If I'm on a Cisco router I have to issue 
>a
> > specific command to turn on IP routing.  If I'm on a NT box I
> > have to launch
> > a specific service to turn on IP routing.  What I'm hearing you
> > say is that
> > running a routing daemon is NOT the specific mechanism that turns on IP
> > routing on a Sol8 box?  That's fine, but then what IS the procedure for
> > turning IP routing on or off?
> >
> > >Checking your currently routing table is as easy as netstat -rn.
> > >This lists your current routes and does not attempt to resolve names
> > >which speeds things up considerable for a large table.
> >
> > Understood.
> >
> > >You do not need to run a routing daemon if you are only using static
> > >routes and I would advise against running RIP for such a simple
> > network as
> > >there is no real benefit and you open yourself to some security issues
> > >since RIP is very easy to poison/spoof.
> >
> > Yes, those were my opinions as well.
> >
> > >Your routing table should have a route for the network directly
> > >connected to both hme0 and le0. It should then have a default route
> > >to your ISP's router.  That should be sufficient.
> >
> > Hmm.  It does have those exact three, as I mentioned, but they
> > don't seem to
> > be sufficient.  The only one I am adding via the gateways file is the
> > default; the others are being added automagically, I assume as
> > part of the
> > normal initialization of the interfaces.
> >
> > >Assuming that you do not have a routing daemon running, you can
> > >dynamically update and modify your routing table using hte route
> > >commands. most common commands are "route add <destination network>
> > ><gateway> <metric>" and "route> delete <destination network>
> > ><gateway> <metric>"
> >
> > Yes.
> >
> > >Hope this helps.
> > >
> > >- Rob Staab
> > >
> > >_______________________________________________
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