0000.0000.0000 MAC Addresses in ARP Table.

0000.0000.0000 MAC Addresses in ARP Table.

NewsGroups | Search | Tools
 comp.dcom.lans.ethernet  Post an article  get this group's latest topics as an RSS feed add this group's latest topics to your My MSN content add this group's latest topics to your My Yahoo content  add this group's latest topics to your Google content  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
0000.0000.0000 MAC Addresses in ARP Table. ws00sw 06-06-2005
Posted by on June 6, 2005, 6:04 am
If you were  Registered and logged in, you could reply and use other advanced thread options


Hello all
I have this Juniper ERX in my network
What i'm worry about are the 0000.0000.0000 MAC Addresses that are
present in the Arp Table

Does anyone know why?
Regards
ws00sw

plc-bras#show ver
Juniper Edge Routing Switch ERX-1400
Copyright (c) 1999-YYY5 Juniper Networks, Inc. All rights reserved.
System Release: erx_5-3-3p0-8.rel
Version: 5.3.3 patch-0.8 [BuildId 3397] (April 8, YYY5
09:11)
System running for: 0 days, 10 hours, 54 minutes, 9 seconds
(since FRI JUN 03 YYY5 00:24:30 GMT-4)

slot state type admin spare running release slot uptime
---- ------- -------- ------- ----- ----------------- -------------
0 online GE enabled --- erx_5-3-3p0-8.rel 0d10h:43m:19s
1 --- --- --- --- --- ---
2 --- --- --- --- --- ---
3 --- --- --- --- --- ---
4 --- --- --- --- --- ---
5 --- --- --- --- --- ---
6 online SRP-10Ge enabled --- erx_5-3-3p0-8.rel 0d10h:52m:32s
7 standby SRP-10Ge enabled --- erx_5-3-3p0-8.rel ---
8 --- --- --- --- --- ---
9 online OC12Atm enabled --- erx_5-3-3p0-8.rel 0d10h:44m:00s
10 --- --- --- --- --- ---
11 --- --- --- --- --- ---
12 online OC12Atm enabled --- erx_5-3-3p0-8.rel 0d10h:43m:59s
13 --- --- --- --- --- ---
Copyright (c) 1999-YYY5 Juniper Networks, Inc. All rights reserved.

plc-bras#sh ip arp | i 0000.0000.0000
Please wait....
YYY.XXX.47.5 21450 0000.0000.0000 ATM9/0.971329
YYY.XXX.230.53 21420 0000.0000.0000 ATM9/0.971174
YYY.84.76.183 21230 0000.0000.0000 ATM12/0.800514
YYY.84.78.111 21250 0000.0000.0000 ATM12/0.1380742
YYY.90.127.101 21390 0000.0000.0000 ATM12/0.1350785
YYY.XXX.62.153 21530 0000.0000.0000 ATM12/0.2180776
YYY.XXX.62.246 21480 0000.0000.0000 ATM12/0.1381051
YYY.XXX.62.247 21480 0000.0000.0000 ATM12/0.1410570



Posted by Walter Roberson on June 6, 2005, 4:41 pm
If you were  Registered and logged in, you could reply and use other advanced thread options


:I have this Juniper ERX in my network
:What i'm worry about are the 0000.0000.0000 MAC Addresses that are
:present in the Arp Table

:Does anyone know why?

This has been discussed in the last couple of days in
comp.protocols.tcp-ip
--
"Who Leads?" / "The men who must... driven men, compelled men."
"Freak men."
"You're all freaks, sir. But you always have been freaks.
Life is a freak. That's its hope and glory." -- Alfred Bester, TSMD


Posted by on June 22, 2005, 10:46 am
If you were  Registered and logged in, you could reply and use other advanced thread options



Walter, can you please show me the link
Thanks
Regards


Walter Roberson ha escrito:
> :I have this Juniper ERX in my network
> :What i'm worry about are the 0000.0000.0000 MAC Addresses that are
> :present in the Arp Table
>
> :Does anyone know why?
>
> This has been discussed in the last couple of days in
> comp.protocols.tcp-ip
> --
> "Who Leads?" / "The men who must... driven men, compelled men."
> "Freak men."
> "You're all freaks, sir. But you always have been freaks.
> Life is a freak. That's its hope and glory." -- Alfred Bester, TSMD



Posted by Walter Roberson on June 22, 2005, 6:04 pm
If you were  Registered and logged in, you could reply and use other advanced thread options



|Walter Roberson ha escrito:

|> :What i'm worry about are the 0000.0000.0000 MAC Addresses that are
|> :present in the Arp Table

|> This has been discussed in the last couple of days in
|> comp.protocols.tcp-ip

|Walter, can you please show me the link

http://groups.google.ca/group/comp.protocols.tcp-ip/msg/ed4c7c37737f37e3

"Can ARP packet have zero or Broadcast address as Soure IP address??"
[sic]
--
Any sufficiently old bug becomes a feature.


Posted by Thomas Schulz on June 22, 2005, 6:27 pm
If you were  Registered and logged in, you could reply and use other advanced thread options


>
>|Walter Roberson ha escrito:
>
>|> :What i'm worry about are the 0000.0000.0000 MAC Addresses that are
>|> :present in the Arp Table
>
>|> This has been discussed in the last couple of days in
>|> comp.protocols.tcp-ip
>
>|Walter, can you please show me the link
>
>http://groups.google.ca/group/comp.protocols.tcp-ip/msg/ed4c7c37737f37e3
>
>"Can ARP packet have zero or Broadcast address as Soure IP address??"
>[sic]
>--
>Any sufficiently old bug becomes a feature.

That discussion was about an IP address of zero. If you are seeing a MAC
address of zero, that would be a different situation. If I recall correctly,
we once had a problem with a system where the battery holding the ram that
contained the MAC address has died. The system tried to use a MAC address
of zero, which caused problems. I forget now the exact problems caused.
--
Tom Schulz
schulz@adi.com


Similar ThreadsPosted
Switch behavior when MAC table full March 11, 2005, 2:12 am
802.3ad and multiple mac addresses June 4, 2007, 2:25 pm
duplicate MAC addresses November 19, 2007, 6:02 pm
Different treatment for registered and unregistered MAC addresses May 18, 2006, 11:06 pm
MAC addresses in router vs Access Point May 1, 2008, 5:19 am
brouter - bridging non routable (layer 3?!) addresses - terminology question February 28, 2006, 5:06 am

other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

Custom CGI Perl and PHP programming by 1-Script.com

Contact Us | Privacy Policy
The site map in XML format XML site map