Re: Adding a route question

Hi Herb,

Do I have my network cards gateways configured correctly?

ETHERNET ADAPTER 1
IP address 192.168.1.1
Subnet mask 255.255.255.0
Gateway 192.168.2.1

ETHERNET ADAPTER 2
IP address 192.168.2.1
Subnet mask 255.255.255.192
Gateway 192.168.1.1

Or should it be

ETHERNET ADAPTER 1
IP address 192.168.1.1
Subnet mask 255.255.255.0
Gateway 192.168.1.1

ETHERNET ADAPTER 2
IP address 192.168.2.1
Subnet mask 255.255.255.192
Gateway 192.168.2.1




"Herb Martin" wrote:

> "Sam" <Sam@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:5DD30B58-840B-4BD3-B03C-853CDEE12C00@xxxxxxxxxxxxxxxx
> > Hi,
> >
> > I am in the process of setting up a routed network. One network is
> > 192.168.1.0/24 and the other is 192.168.2.0/26.
>
> The above is legal, but out of curiousity did you mean
> to have different masks?
>
> > I have configured a windows
> > 2000 router with 2 network cards to each represent the networks. However
> > when I try to use the "route add -p" command to add a persistent route to
> the
> > networks I get an interface error message. Can someone show me what the
> > command would be if my network cards are configured the following way?
>
> "Windows 2000 router" - may we presume you are using
> RRAS?
>
> It is MUCH better (i.e., it works) if you add RRAS routes
> through the RRAS MMC or through NetSh.exe.
>
> The Route Add command should probably be left strictly
> for ordinary Windows machine (workstations etc) without
> RRAS.
>
> With ONE router you don't need any static routers (actually
> with two routers you don't either.) With one router it is
> connected to EVERYTHING so it already knows about
> everything from the default building of the routing table.
>
> With two routers they can point to each other as "default
> gateway" so no static routes need to be manually ADDED.
> (The default gateway settings inherently create those static
> routes.)
>
> Now, be careful, since most people connect to the Internet,
> and the ISP has a router which COUNTS in our totol, so
> with one internal router and the Internet we don't need any
> manual routes on that internal router since it just uses the
> ISP as "default gateway".
>
> Only "middle routers" (my term) need added routes to point
> to the smaller networks of the routers it is in contact with.
> Why "smaller networks"? Well, because it will use the
> router connected to the largest (or really most diverse)
> networks as it's default gateway (usually that's the ISP,
> or the upstream router that eventually leads to the ISP and
> the Internet (or maybe to "headquarters" if we are a branch
> office.
>
> So assuming you have ONE internal router, you just set its
> default gateway to the ISP's router.
>
> Assuming your have the router below AND another router
> with say "DSL upstream" (to the ISP) and 192.168.1.2 on the
> INTERNAL side you would route from this "middle router"
> to the 192.168.2.0 network this way:
>
> route add 192.168.2.0 mask 255.255.255.252 192.168.2.1
>
> (Although that mask still looks to be a typo.)
>
> > ETHERNET ADAPTER 1
> > IP address 192.168.1.1
> > Subnet mask 255.255.255.0
> > Gateway 192.168.2.1
>
> ON THE OTHER router(s), to reach this router
> you
>
> > ETHERNET ADAPTER 2
> > IP address 192.168.2.1
> > Subnet mask 255.255.255.192
> > Gateway 192.168.1.1
> >
> > Regards
> > Sam
>
>
>
.

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