Re: IP ARP rep filtered src wrong cable ??

Hi,

On Sun, May 17, 2009 at 1:13 PM, Michael Jones <majonestx_at_gmail.com> wrote:
> That did it !!!!!! - weird ?
>
> My IOS version is below. Thanks Dale!
>
> RSRack1SW2#sho version
> Cisco IOS Software, C3560 Software (C3560-ADVIPSERVICESK9-M), Version 12.2(2
> E2, RELEASE SOFTWARE (fc1)

I was more interested in the IOS on the router. I'm guessing it's an
older model - maybe a 3600? - given you have an 10M Ethernet interface
in slot 2.

In older IOS releases, you had to configure IP addressing for the
native VLAN on the main interface. To prove/disprove the theory, try:

no vlan dot1q tag native
!
interface FastEthernet0/6
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 16
 switchport mode trunk
 duplex full

..and this on the router:

no interface Ethernet2/0.16
!
interface Ethernet2/0
 ip address 16.0.0.6 255.0.0.0
 full-duplex

Then configure some other E2/0 sub-interfaces in other VLANs and make
sure you get the connectivity you expect in all (native and
non-native) VLANs.

You probably only need to give this more thought if you can reproduce
the behaviour on 12.4.

cheers,
Dale

Blogs and organic groups at http://www.ccie.net
Received on Sun May 17 2009 - 13:29:19 ART