Ethical Hacking Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package. | Computer Forensics Training at InfoSec Institute Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors. |

| Subject: | Re: Layer 2 Trace |
|---|---|
| Date: | Sat, 03 Dec 2005 20:00:45 +0000 |
On Sat, 2005-12-03 at 11:44 -0800, Gary E. Miller wrote:
You are confusing layer 2 and layer 3. There are no IPs on layer 2! I often put several layer 3 IP subnets on one physical layer 2 net. You can do this with or without using VLAN tagging.
I was trying to explain the distinction between a layer 2 segment and a larger network operating over layer 3 using layer 3 terminology - not quite confusing the two, but yes, you're right, I should have been clearer there. What I would have said if I'd had any sleep would have been: "Layer two only provides connectivity to machines attached to the same segment. In the case of a layer three network using TCP/IP this means the local network segment, such as a 192.168.0.1/24 class C subnet of 255 hosts". This subnet has layer two connectivity - anything further afield doesn't". ;) - James, who will now proceed to get some sleep
RGDS
GARY
- ---------------------------------------------------------------------------
Gary E. Miller Rellim 20340 Empire Blvd, Suite E-3, Bend, OR 97701
gem@rellim.com Tel:+1(541)382-8588 Fax: +1(541)382-8676
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)
iD8DBQFDkfWw8KZibdeR3qURAm4nAJwPG88aficwJ3du7Di8UHlGBrB+rACg1qIG
D18qAo8Humhy1m4MlOk6eUI=
=6wNE
-----END PGP SIGNATURE-----
-- James (njan) Eaton-Lee | 10807960 Semper Monemus Sed Non Audiunt, Ergo Lartus - (Jean-Croix) sites: http://www.bsrf.org.uk - http://www.security-forums.com ca: https://www.cacert.org/index.php?id=3
smime.p7s
Description: S/MIME cryptographic signature
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: Layer 2 Trace, Gary E. Miller |
|---|---|
| Next by Date: | Human-oriented IDS, new Paper+Tool, Steffen Wendzel |
| Previous by Thread: | Re: Layer 2 Trace, Gary E. Miller |
| Next by Thread: | Re: Layer 2 Trace, Carles Fragoso i Mariscal |
| Indexes: | [Date] [Thread] [Top] [All Lists] |