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Seeing ARP entries on shut down VLAN interface.

Aaron Street
Level 1
Level 1

Hi, 

As you can see below I see a mac address picked up on VLAN 1 on this switch, however vlan 1 interface is shut down? This is causing connectivity issues so does any one know why it is happening? 

 

Cheers 

 

 

DP1-West#sh arp   
Protocol  Address          Age (min)  Hardware Addr   Type   Interface
Internet  10.10.10.198        11   0050.56ae.0aab  ARPA   Vlan1
Internet  20.20.20.1            0   4403.a754.8300  ARPA   Vlan666
Internet  20.20.20.54           -   34db.fd2e.6d41  ARPA   Vlan666
DP1-West#
DP1-West#

DP1-West#sh ru int vlan 1 
Building configuration...

Current configuration : 65 bytes
!
interface Vlan1
 no ip address
 no ip proxy-arp
 shutdown
end

DP1-West#sh ru int vlan 666
Building configuration...

Current configuration : 82 bytes
!
interface Vlan666
 ip address 20.20.20.54 255.255.255.0
 no ip proxy-arp
end

DP1-West#sh ver 
Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.0(2)EX5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Fri 21-Feb-14 05:54 by prod_rel_team

ROM: Bootstrap program is C2960X boot loader
BOOTLDR: C2960X Boot Loader (C2960X-HBOOT-M) Version 15.0(2r)EX, RELEASE SOFTWARE (fc1)

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