ARP timeout issue

From: Naufal Jamal <najamal_at_cisco.com>
Date: Sun, 6 Sep 2009 00:21:35 +0900

Hi All,

 

(I am a member of groupstudy but as we don't have access to yahoo inside
here I am sending from my cisco ID.)

 

I have a switch 3750.scenario is like this:

 

Port fa1/0/14 of the switch is connected to a printer whose ip is
10.101.25.141. I am able to ping the printer from switch and after pinging
it I can see it in the arp table but within couple of seconds or when I do
clear arp I loose the printer from my arp table and left with only two
entries.

 

sALBEles70#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 10.101.25.26 - 0025.46fe.5641 ARPA Vlan25
Internet 10.101.25.10 7 0000.0c07.ac19 ARPA Vlan25
Internet 10.101.25.141 0 0007.4d2d.ee88 ARPA Vlan25

 

sALBEles70#sh run int fa1/0/14
Building configuration...

Current configuration : 473 bytes
!
interface FastEthernet1/0/14
switchport access vlan 25
switchport mode access
switchport port-security maximum 5
switchport port-security
switchport port-security aging time 2
switchport port-security violation restrict
switchport port-security aging type inactivity
no logging event link-status
no logging event power-inline-status
storm-control broadcast level 30.00
storm-control action shutdown
spanning-tree portfast
spanning-tree bpduguard enable
end

 

I have tried increasing the arp timeout of the interface to 1 min but no
joy. TAC has replaced the switch two times but still no joy. Wonder why the
arp table is not holding the printer's entry. Any Clue????

 

 

Thank you,

 ~NJ

Naufal Jamal

Cisco Systems Inc.

Cisco Remote Management Services

GVN UC Change & Config Management

Phone # +1 800-234-9034

Working Hours: Mon-Fri 4:00hrs-13:00 hrs CDT

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Received on Sun Sep 06 2009 - 00:21:35 ART

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