From: James D. Holley, Jr. (jholley@xxxxxxxxxxx)
Date: Fri Feb 18 2000 - 02:04:27 GMT-3
Your book is giving you information about RTMP. The router receives an
update about a cable range and then ZIP queries for a zone for that cable
range. If none is found the cable range route is dropped. That is normal
RTMP protocol behavior.
With AppleTalk EIRGP it is not the case. It can operate without zone
information. It works with the DUAL algorithm which is different from RTMP.
It is expained in Bridges Routers and Switches by Bruce Caslow, in the
AppleTalk Chapter.
James Holley
----- Original Message -----
From: "Khurram Khani" <ajmal@emirates.net.ae>
To: <ccielab@groupstudy.com>
Sent: Friday, February 18, 2000 1:18 AM
Subject: Appletalk ZIP-Reply Filter ???
> Hello Friends.
>
> According to my book, if the zone information from a route is removed,
> the route is dropped. I am trying to hide zone of Router 2 Eth 0, I
applied
> ZIP Reply filter on R2 and found something interesting, route is still
> advertised to R1 but without zone. Notice the Appletalk Route table
> below for cable-range 50-50,
>
> R1--------R2 ---eth 0
>
> R1 "show apple ro"
>
> r1#sh apple ro
> Codes: R - RTMP derived, E - EIGRP derived, C - connected, A - AURP
> S - static P - proxy
> 7 routes in internet
>
> The first zone listed for each entry is its default (primary) zone.
>
> C Net 12-12 directly connected, Ethernet0, zone R1Ethernet0
> E Net 32-32 [1/G] via 101.3, 142 sec, Serial0.2, zone R3TokenRing
> E Net 33-33 [1/G] via 101.3, 150 sec, Serial0.2, zone R3R4Serial
> E Net 40-40 [2/G] via 101.3, 142 sec, Serial0.2, zone R4Ethernet0
>
> Notice this!!!!
>
> E Net 50-50 [1/G] via 101.5, 149 sec, Serial0.2, no zone set ???????????
>
> C Net 100-100 directly connected, Serial0.1, zone R1R2PointToPoint
> C Net 101-101 directly connected, Serial0.2, zone R1R3R5Multipoint
> r1#
>
> TIA
> KHURRAM KHANI
> -----
>
> If you take the blue pill, you wake up on the bed and back
> to your world, If you take the red pill, you'll know what the
> M A T R I X is...........................!!!!!!
>
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