From: Daniel Kutchin (daniel@kutchin.com)
Date: Sat May 12 2007 - 18:22:20 ART
See, I "googled" it for you:
Insert "Client-ID site:groupstudy.com/archives/ccielab/" without quotation
marks in the Google search window.
You'll get these links:
http://www.groupstudy.com/archives/ccielab/200401/msg01208.html
http://www.groupstudy.com/archives/ccielab/200401/msg01209.html
Daniel
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Scott Morris
Sent: Samstag, 12. Mai 2007 05:16
To: 'Joshua'; ccielab@groupstudy.com
Subject: RE: MAC binding problem in Cisco router
Check out some of the archives (for some old extensive discussions we did
complete with exciting packet captures!) on DHCP and client-id.
Bottom line is it's an RFC thing, and Cisco chooses to send a client
identifier which will be used instead of the MAC address.
HTH,
Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, JNCIE
#153, CISSP, et al.
CCSI/JNCI-M/JNCI-J
IPexpert VP - Curriculum Development
IPexpert Sr. Technical Instructor
smorris@ipexpert.com
http://www.ipexpert.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Joshua
Sent: Friday, May 11, 2007 7:03 PM
To: ccielab@groupstudy.com
Subject: MAC binding problem in Cisco router
Hi,
I am trying to test DHCP MAC binding in cisco 3550. Below is the problem.
ip dhcp pool test
network 10.10.10.0 255.255.255.0
dns-server 10.10.11.2
!
ip dhcp pool reserve
host 10.10.10.2 255.255.255.0
hardware-address 0018.8bb0.dc63
After i release and renew IP in the PC, which MAC reserved, it grab another
ip and MAC address changed in DHCP database.
Switch#sh ip dhcp bin
IP address Client-ID/ Lease expiration Type
Hardware address
10.10.10.2 0018.8bb0.dc63 Infinite Manual
10.10.10.3 0100.188b.b0dc.63 Mar 02 1993 01:28 AM Automatic
Could anybody explain it?
Thanks
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