What is destination socket 457 when doing IPX DDR in Lab 8a

From: Rob Rummel (Rummel@xxxxxxxxxxxxx)
Date: Mon Dec 24 2001 - 16:41:58 GMT-3


   
I'm working on Lab 8a ccbootcamp and as per there solution I see they
don't want the ISDN to come up for any IPX RIP updates or SPA updates
but I'm not sure of what exactly is the socket 457?
access-list 901 deny any any all any 457

on the CCO I found:
access-list 900 deny -1 -1 0 -1 452 defines all SAP packets as
uninteresting.
access-list 900 deny -1 -1 0 -1 453 defines all RIP packets as
uninteresting.
access-list 900 deny -1 -1 0 -1 457 defines all security packets as
uninteresting.
What security packets are they talking about?
I must be missing something.

And since I'm on the subject of the ccbootcamp solution. They have a
floating static default route for the BRI. But I don't think that meets
the requirement because if R8 was the first one that had to send traffic
to any router past R6 it wouldn't work because:
Once the Ethernet goes down and we specified that ISDN wont come up for
RIP updates then I would think all the routes would age out eventually.
R8 would not know of how to get to any router past R6.
So I think the correct solution would be to put in a floating static
route for each network on r5 and R6 OR default routes on all routers
Right?????????

17 Days to go......

Rob Rummel

-The faulty interface lies between the chair and the keyboard-

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