From: robbie (robbie@packetized.org)
Date: Tue Jun 21 2005 - 09:50:31 GMT-3
I actually used Ethereal the other day to prove to someone in my office
that when you use 'ping -a' in Windows, it's not magically pulling trhe
hostname out of the remote IP stack via ICMP, but rather doing a PTR
query against a name server.
Using Ethereal/ettercap/tcpdump on a daily basis, IMO, is close to the
best thing you can do to further your understanding of IP.
Cheers,
Robbie
Brian Dennis wrote:
> John,
> You just need a PC and Ethereal (download free from
> http://www.ethereal.com) to test this out.
>
> Are we really helping if we just tell someone the answer? Part
> of the CCIE preparation is learning how to solve problems. This is a
> great one for somebody to solve. You would be amazed at the number of
> networking engineers that can't tell you how traceroute works.
>
> Lastly I'll bet that the socratic method is better for CCIE
> preparation than the "spoon fed" method ;-)
>
> Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
> -----Original Message-----
> From: John Matus [mailto:jmatus@pacbell.net]
> Sent: Monday, June 20, 2005 8:56 PM
> To: Brian Dennis; ccie2be; Group Study
> Subject: Re: icmp - time-exceeded vs ttl-exceeded
>
> being a philosphy major in college <wonders that did for my
> marketability>,
> i really despize socratic method/dialogue!!! :-p
> it would be great if we all had labs to just "test stuff out on" hehehe
>
>
> Regards,
>
> John D. Matus
> MCSE, CCNP
> Office: 818-782-2061
> Cell: 818-430-8372
> jmatus@pacbell.net
-- robbie at packetized dot org <short sig army - one line sigs since 1993>
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