Re: IP ARP rep filtered src wrong cable ??

Yeah,

Unfortunately, when rebuilding the interface i left it off- however, once
re- added the same issue exists.

Whats even weirder is when I create a layer 3 interface for vlan 16 on the
switch the router is trunking down to-
I still cant get a icmp reply!

Here is from the switch up (debugging arp)

RSRack1SW2#ping 16.0.0.6 (sub interface )

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 16.0.0.6, timeout is 2 seconds:

06:24:56: IP ARP: sent req src 16.0.0.8 0019.5534.e447,
                 dst 16.0.0.6 0000.0000.0000 Vlan16.
06:24:58: IP ARP: sent req src 16.0.0.8 0019.5534.e447,
                 dst 16.0.0.6 0000.0000.0000 Vlan16.
06:25:00: IP ARP: sent req src 16.0.0.8 0019.5534.e447,
                 dst 16.0.0.6 0000.0000.0000 Vlan16.
06:25:02: IP ARP: sent req src 16.0.0.8 0019.5534.e447,
                 dst 16.0.0.6 0000.0000.0000 Vlan16.
06:25:04: IP ARP: sent req src 16.0.0.8 0019.5534.e447,
                 dst 16.0.0.6 0000.0000.0000 Vlan16.
Success rate is 0 percent (0/5)

On Sat, May 16, 2009 at 8:43 PM, Dale Shaw <dale.shaw_at_gmail.com> wrote:

> Hi,
>
> On Sun, May 17, 2009 at 12:37 PM, Michael Jones <majonestx_at_gmail.com>
> wrote:
> > Thats already present in my config ? (encapsulation dot1q 16 native)
>
> Not according to the config snippet you sent:
>
> >> > interface Ethernet2/0.16
> >> > encapsulation dot1Q 16
> >> > ip address 16.0.0.6 255.0.0.0
>
> You're missing the "native" keyword at the end.
>
> > Am i missing something here ?
>
> Yes, the "native" keyword :-)
>
> If you added it afterwards, does it work now?
>
> If you have this on the switch:
>
> interface FastEthernet0/6
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 16
> switchport mode trunk
> duplex full
>
> ..and this on the router:
>
> interface Ethernet2/0
> no ip address
> full-duplex
> !
> interface Ethernet2/0.16
> encapsulation dot1Q 16 native
> ip address 16.0.0.6 255.0.0.0
>
> ..it should work as expected (other potential quirks in your setup aside).
>
> cheers,
> Dale

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Received on Sat May 16 2009 - 20:56:22 ART