CCNA Video Training Series

Instant Access, Web or Mobile!

Only $99 for 30 days...
Renew at half price!


Includes FREE Practice Exams!

Member Login

Lost your password?

Not a member yet? Sign Up!

Official Lammle User Forum

Prev Previous Post   Next Post Next
Old 12-17-2009, 12:12 PM
vinchez vinchez is offline
Join Date: Dec 2009
Posts: 12
Default ARP resolution IP to MAC address

On Pg No. 332 (CCNA Study Guide Sixth Edition), o/p of arp -a command shows,

c:\>arp -a
Interface: --- 0x3
Internet Address Physical Address Type 00-15-05-06-31-b0 Dynamic

On Pg No. 334, o/p of sh ip arp command shows,

Lab_A#sh ip arp
Protocol Address Age(min) Hardware Addr Type Interface
Internet - 00d0.58ad.05f4 ARPA Ethernet0
Internet 3 0030.9492.a5dd ARPA Ethernet0
Internet - 00d0.58ad.06aa ARPA Ethernet0
Internet 12 0030.9492.a4ac ARPA Ethernet0

Now, why does resolution of IP address show two different MAC addresses in ARP cache table of router & host. I mean arp -a shows 00-15-05-06-31-b0 as Physical Address & sh ip arp shows 00d0.58ad.06aa as Hardware Address?

Or should I ask whether Physical Address & Hardware Address are two different entities? and if at all they are, how they differ?

* Trivial question - Why notation of Hardware address & Physical address (. dot / - Hyphen notation and grouping of digits) are different???
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Lab 10.1 Access list Page 657 for CCNA gfranco Access Lists 3 11-11-2010 12:57 PM
Small VPN issue gabrielshorn VPN 9 11-04-2010 10:22 AM
IP route query milanchatterjee Internetworking 4 04-04-2010 01:44 PM
Help with DMVPN? gabrielshorn VPN 1 10-30-2009 03:04 PM
Loving this stuff!!! lildeezul ISCW 5 01-19-2009 09:50 AM

All times are GMT -5. The time now is 12:39 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.