From: Bogdan Sass (bogdan.sass@catc.ro)
Date: Sat Oct 25 2008 - 14:30:02 ARST
Osamah Shaheen wrote:
> This is due miss leading study, can you plz use IE volume 1 so u can get
> advantage
>
I fail to see how using a particular vendor's workbook would make
the router behave differently. I doubt that the router will say "oh,
this guy is using IE material - I will encapsulate the packets at layer
2 just for him!!" :P
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> naman sharma
> Sent: 2008-10-25 17:19
> To: Cisco certification
> Subject: Encapsulation failed issue.
>
> Hi Group,
>
> I am facing a very strange problem my router is connected to Backbone
> through a switch. Router and Backbone are in Vlan 300. I was able to
> ping
> backbone from my router and then i configured RSPAN with Vlan 300 as
> source
> after that i am not able to ping my backbone, i removed Monitor session
> commands and then also i am not able to ping.
>
> After doing debug ip packet i see encapsulation failed messages, to my
> understanding it is when the router is not able to resolve the Layer 2
> address, my concern is if we are trapped with such situation in real lab
> and
> we dont have access to Backbone hpow to make it up and running. I have
> reloaded the router and switch still not able to ping.
>
Could you post some relevant configs/outputs from your
router/switch? Namely:
-router:
sh ip int brief
sh arp
-switch
sh int F0/X switchport (for the interfaces connected to the backbone and
to the router)
sh run | i monitor
-- Bogdan Sass CCAI,CCSP,JNCIA-ER,CCIE #22221 (RS) Information Systems Security Professional "Curiosity was framed - ignorance killed the cat"Blogs and organic groups at http://www.ccie.net
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