Re: Where can we find the ethertype value for IPv6 in IOS

Unfortunatly trying to debug bridging was a bust. I got IRB working but there
are no usefull debug commands (at least that I could find). If you know of
any
that will show ethertype, I would be most thankfull.

Regards,

David
 Make a small loan, Make a big difference - Kiva.org
________________________________
From: Joseph L. Brunner
<joe_at_affirmedsystems.com>
To: Chris Proctor <chris_at_cwproctor.net>; Aaron
<aaron1_at_gvtc.com>
Cc: Dave Serra <maybeedave_at_yahoo.com>;
"ccielab_at_groupstudy.com"
<ccielab_at_groupstudy.com>
Sent: Mon, April 4, 2011
8:06:15 PM
Subject: RE: Where can we find the ethertype value for IPv6 in IOS
Chris-

Bridge between two interfaces (think irb) and debug bridging until you
get
it....

Have you tried that?

-----Original Message-----
From:
nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Chris
Proctor
Sent: Monday, April 04, 2011 7:55 PM
To: Aaron
Cc: Dave Serra;
ccielab_at_groupstudy.com
Subject: Re: Where can we find the ethertype value for
IPv6 in IOS

I tried solving this same problem. The issue with debug ip(v6)
packet
is it only shows the information in the IP datagram. I have been
unable
to locate an IOS command which would show the contents of the Ethernet
payload itself. (Short of mirror and WireShark) Anything off the DocCD
is
unreliable (read useless) in the actual lab.

In all honesty, I'd love to know
if anyone has ever found a way to
output the complete layer 2 payload of any
of the media types.

Regards,

Chris

On 4/4/2011 6:11 PM, Aaron wrote:
> I
wonder if putting an ipv6 address on an interface and pinging it and
>debugging ip packet details would show the ether type field on the debug
>output...?
>
> Aaron
>
> On Apr 4, 2011, at 4:47 PM, Dave
Serra<maybeedave_at_yahoo.com> wrote:
>
>> Hey Guys,
>>
>> I came across a task
in one of my practice labs to make sure only
>> IPv6 traffic
>> is traversing
Vlan 40. Is there any where in IOS that will show
>> us the
>> ethertype for
IPv6? I tried to find it in the extended MAC
>> access-list output
>> of my
3560 but no luck. Any help is much appreciated.
>> Thanks!
>>
>>
SW03(config)#mac access-list extended TEST
>> SW03(config-ext-macl)#perm
>>
SW03(config-ext-macl)#permit any any ?
>> <0-65535> An arbitrary
EtherType
>> in decimal, hex, or octal
>> aarp EtherType: AppleTalk
ARP
>>
>> amber EtherType: DEC-Amber
>> appletalk EtherType:
>>
AppleTalk/EtherTalk
>> cos CoS value
>> dec-spanning EtherType:
>>
DEC-Spanning-Tree
>> decnet-iv EtherType: DECnet Phase IV
>> diagnostic
>> EtherType: DEC-Diagnostic
>> dsm EtherType: DEC-DSM
>>
etype-6000
>> EtherType: 0x6000
>> etype-8042 EtherType: 0x8042
>> lat
      EtherType:
>> DEC-LAT
>> lavc-sca EtherType: DEC-LAVC-SCA
>>
lsap LSAP value
>>
>> mop-console EtherType: DEC-MOP Remote Console
>> mop-dump EtherType:
>> DEC-MOP Dump
>> msdos EtherType:
DEC-MSDOS
>> mumps EtherType:
>> DEC-MUMPS
>> netbios EtherType:
DEC-NETBIOS
>> vines-echo EtherType:
>> VINES Echo
>> vines-ip
EtherType: VINES IP
>> xns-idp EtherType: XNS
>> IDP
>> <cr>
>>
>>
>>
Blogs and organic groups at http://www.ccie.net
>>
>>
Received on Thu Apr 07 2011 - 17:20:06 ART