Re: protocol type & ethertype

Thanks Scott ..

I will do some homework on it .. :) nd get back to you for any issues...

On Mon, Jun 4, 2012 at 4:19 PM, Scott Morris <swm_at_emanon.com> wrote:

> If you look at some of the older IBM SNA documentation, you'll find some
> nice examples of the 200-series ACLs, a little with ethertype, but a lot
> with LSAPs. :)
>
> So let's start with what you believe you will need to know with the
> ethertypes. And then move on from there. What values do you believe
> will show up in the lab exam?
>
> 0x0800 and 0x0806 definitely will...
> 0x8100 may show up as a possibility to need to know to filter
> 0x86DD may show up as a possibility as well.
>
> Protocol types sound like more an IP ACL thing, in which case the "?"
> would pretty well be self-explanatory! (OSPF, IP, etc.)
>
> If you want to know more about ethertypes, and learn about their usage
> and importance, I'd suggest taking a look at some of the wireshark
> (ethereal) videos that are floating around the web. Get familiar with
> sniffers and the output and you'll learn a bit that way!
>
> Then this stuff will be second-nature to you, and it'll be easy IF you
> are asked about it! :)
>
> HTH,
>
>
>
>
> *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,
>
> CCDE #2009::D, CCNP-Voice, JNCIE-SP #153, JNCIE-ER #102, CISSP, et al.
>
> IPv6 Gold Certified Engineer, IPv6 Gold Certified Trainer
>
> CCSI #21903, JNCI-SP, JNCI-ER
>
> swm_at_emanon.com
>
>
> Knowledge is power.
>
> Power corrupts.
>
> Study hard and be Eeeeviiiil......
>
>
> On 6/4/12 7:02 AM, shekhar sharma wrote:
> > Hi Experts,
> >
> > I have very little undersatnding for Ethertypes & protocols types.
> >
> > this is necessary for configuring access-list in switches and in routers
> > for access-list range 200-299.
> >
> > i am not able to find in configuration guide also. How will we identify
> > ethertype or protocol type code during LAB exam.
> >
> > IS there any show command avilable and nice document on the same.??
> >
> > Please help
> >
> > Regards,
> > Shekhar
> >
> >
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Received on Mon Jun 04 2012 - 16:53:46 ART