From: James (james@towardex.com)
Date: Fri Aug 13 2004 - 18:09:14 GMT-3
Hi john, joe,
> As far as the following:
> "dialer-list 10 proto ip deny"
>
> This is basically an implicit deny of any ip traffic. The book
> recommends that it is better practice and show better understanding of
> dialer watch process to put it in.
Yes thank you. This was the exact information I was looking for.
Dialer-watch stuff I understand.. By question is if I didn't put that
implicit deny of any ip traffic, would I lose points? But as you answered it,
book says it is recommended... though not required :)
Thank you for clarifying my concern.
-J
>
> Just make sure you test this and see the dialer watch working, and
> understand what is going on.
>
> Sincerely,
>
> John Matijevic, CCIE #13254, MCSE, CNE, CCEA
> Network Consultant
> Hablo Espanol
> 305-321-6232
> http://home.bellsouth.net/p/PWP-CCIE
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> James
> Sent: Friday, August 13, 2004 3:08 PM
> To: ccielab@groupstudy.com
> Subject: what kind of question is this!?
>
> Hi group,
>
> Okay so I am reading this CCIE R&S Practice Labs book. On the very first
> lab,
> look at the ISDN, the question clearly asks of me:
>
> "Ensure that VLAN3 and R4 Lo0 are accessible from R1 and beyond
> should
> the frame network fail either physically or logically. If VLAN3 and R4
> Lo0
> networks are restored while the ISDN line is active, ensure that traffic
> is
> routed over frame relay network to these destinations immediately."
>
> The question does not specifically mention that ISDN line should come up
> if and
> only if R4/VL3 routes via frame network are down. Now looking at the
> solutions
> debriefing, they talk about placing "dialer-list 10 proto ip deny" so
> that
> ISDN never comes online during normal operations. Why? Why does this
> need to
> happen when question never asked for making sure ISDN circuit remains
> down
> during normal frame-relay operation? All I have to do is make sure ISDN
> is used
> to transit VLAN3 + R4 Lo0 when routes via frame is down, no? I'm
> confused with
> this whole Cisco-landmine trickery language :)
>
> Thanks!
> -J
>
> --
> James Jun TowardEX
> Technologies, Inc.
> Technical Lead Network Design, Consulting, IT
> Outsourcing
> james@towardex.com Boston-based Colocation & Bandwidth
> Services
> cell: 1(978)-394-2867 web: http://www.towardex.com , noc:
> www.twdx.net
>
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-- James Jun TowardEX Technologies, Inc. Technical Lead Network Design, Consulting, IT Outsourcing james@towardex.com Boston-based Colocation & Bandwidth Services cell: 1(978)-394-2867 web: http://www.towardex.com , noc: www.twdx.net
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