If you simply wish to filter out all updates *except* the Netware file servers you can
use an output sap filter on the wan interface of *each* router. (I am assuming that you
have IOS feature sets on your routers which support IPX.) For example:

Router A
----------------------------------------
ipx routing

access-list 1001 permit -1 4
access-list 1001 deny -1      <------ not necessary due to implicit deny but I prefer to
have it in there for readability

interface s 0
 ipx network AC
 ipx output-sap-filter 1001

interface e 0
 ipx network A

-----------------------------------------

After you implement the output sap filter, wait 60 seconds and do a show ipx servers.
The non-server entries for the remote sites should go away. Check out the link below for
more information.

http://www.cisco.com/warp/public/701/34.html

As for implementing IPX EIGRP, this would depend on the speed of your WAN links and the
amount of required (i.e. servers) SAP traffic. Using IPX/RIP, it takes 480 bytes every
60 seconds to advertise 7 SAP services.  If you have fast links and a small amount of
required SAP traffic then implementing IPX EIGRP might be unnecessary. If on the other
hand you have lots of required SAP traffic I would definitely implement IPX EIGRP.  If
you do setup it up, don't forget to disable IPX/RIP for the WAN interfaces. For example:

Router A
-------------------
ipx routing

int e 0
ipx network A

int s 0
ipx network AC

ipx router eigrp 100
 network AC
 network A

ipx router rip
 no network AC

--------------------------------------

Hope this helps,
Sandy Turnage

SH Wesson wrote:

> In regards to ipx routing, how and when do we determine if running ipx
> routing is enough as compare to when to run ipx eigrp routing?  My
> environment is growing from about 100 sap listings to maybe 2000 sap
> listings via a company merger.
>
> My second question is via the following diagram
>
> Site A  ----  Site B  ----  Site C
>
> Currently, IP traffic is going between Site A, B, and C. IPX is running
> locally within each site but not routed to other sites.  I wanted to have
> Site A and Site C to be able to talk IPX in order to see Novell servers on
> each site by enabling IPX routing.  Site A has about 100 sap listings, Site
> B has about 2000 sap listings, and site C has about 750 sap listings.  In
> enabling ipx routing across from A to C, how can I go about such that Site A
> only certain server sap advertisements from Site C.  Basically, I only want
> to be able to see servers across A and C and don't need to see ipx enabled
> clients.  Also, in this type of environment with the above number os sap
> listings, should I just use ipx routing or should I use "ipx eigrp"?
>
> Thanks.
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