On 11 Mar 00, at 14:36, Hugh Irvine wrote:

> I don't know how you have configured the routing on your network, but
> if the NAS is advertising routes to an internal routing protocol, you
> would simply add those routes to the NAS configuration. Otherwise, you
> will have to set up static routes on the relevant routers pointing to
> the NAS. You will also have to organise whatever is required to
> announce those routes externally as well, either through your BGP
> configuration or through your upstream provider.

Hugh,

Thanks for your reply, which got me thinking in the right directions.

I thought the list might be interested in the eventual solution:

Define the connected port on the next hop router as the gateway 
address for the new subnet that we want the portmaster to accept, and 
create a subinterface on the PM3's ethernet port with an address 
within that subnet. The router is already set up for addresses it 
knows to propagate around our network, and now the PM3 thinks that it 
is on the subnet in question it happily passes outgoing traffic to 
the gateway for that subnet. It all works neatly (even IPX/SPX, 
although I can't quite work out *how* that aspect is working since 
IPX is disabled on the subinterface!).

M.


--
Mark O'Leary, Manchester Computing, UK
PGP Key and Further Details: 
http://lucy.mcc.ac.uk/mark/mark.html

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