From: Nick Griffin (ngriffin@sio.midco.net)
Date: Mon Apr 17 2006 - 12:07:11 GMT-3
The 10/half versions do not support tagging:
R3(config)#int eth 0.13
R3(config-subif)#enc?
% Unrecognized command
R3(config-subif)#do sh ver
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-IS-L), Version 12.2(15)T17, RELEASE
SOFTWARE (fc1)
cisco 2500 (68030) processor (revision N) with 14336K/2048K bytes of memory.
Processor board ID 05272670, with hardware revision 00000000
Bridging software.
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read ONLY)
Jens Petter wrote:
> What do you mean, 2500 do not support vlan tagging. We have a 2500
> with dot1q encapsulation in production :
>
> interface FastEthernet2/0.101
> description 10 etg
> encapsulation dot1Q 101
>
>
> Mvh
> Jens Petter Eikeland
> Senior systemkonsulent
> mob: 99039602
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Schulz, Dave
> Sent: 17. april 2006 16:00
> To: Ivan; ccielab@groupstudy.com; Magmax
> Cc: sheng li
> Subject: RE: CCIE Lab Questions - Mock Lab questions
>
> Depending on the router. The 2500's, for example, do not support the VLAN
> tagging feature.
>
> Dave
>
> ________________________________
>
> From: nobody@groupstudy.com on behalf of Ivan
> Sent: Mon 4/17/2006 4:32 AM
> To: ccielab@groupstudy.com; Magmax
> Cc: 'sheng li'
> Subject: Re: CCIE Lab Questions - Mock Lab questions
>
>
>
> As far af i know. Ethernet interface don't allow encapsulation at all.
>
>
>> You can simulate this problem in your home lab. You will only see this
>> problem with Ethernet interfaces and not fast Ethernet interfaces. I think
>> native VLAN option does not work with Ethernet interfaces
>>
>> Ubaid
>>
>>
>> -----Original Message-----
>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>> Magmax
>> Sent: Monday, 17 April 2006 1:30 PM
>> To: 'sheng li'; ccielab@groupstudy.com
>> Subject: RE: CCIE Lab Questions - Mock Lab questions
>>
>> My fault (typing mistake)
>>
>>
>>> Interface ethernet0/0.6
>>> Encapsulation dot1q 6
>>> Ip address 193.7.6.6 255.255.255.0
>>>
>>> Interface ethernet0/0.263
>>> Encapsulation dot1q 263 native
>>> Ip address 204.12.8.6 255.255.255.0
>>>
>> -----Original Message-----
>> From: sheng li [mailto:slilxn@yahoo.com]
>> Sent: Monday, 17 April 2006 8:23 AM
>> To: Magmax; ccielab@groupstudy.com
>> Subject: RE: CCIE Lab Questions - Mock Lab questions
>>
>> Looking at your initial config, something doesn't look
>> right. Your e0/0.6 and e0/0.263 should never have the
>>
>> same IP address:
>>
>>> Interface ethernet0/0.6
>>> Encapsulation dot1q 6
>>> Ip address 193.7.6.6 255.255.255.0
>>>
>>> Interface ethernet0/0.263
>>> Encapsulation dot1q 263 native
>>> Ip address 193.7.6.6 255.255.255.0
>>>
>> Your arp debug complains about "wrong cable", and you
>> might want to check to see if your network masks and
>> other stuffs are correct.
>>
>> Cheers!
>> Frank
>>
>> --- Magmax <magmax@bigpond.net.au> wrote:
>>
>>> Guys,
>>>
>>> I just reproduced the problem on my home rack and
>>> here is the output of
>>> debug Arp ------------ very interesting but I am not
>>> impressed with myself
>>>
>>>
>>>
>>> IP ARP: sent req src 204.12.8.6 0002.b9be.2570,
>>> dst 204.12.8.2 0000.0000.0000
>>> Ethernet1/0.263
>>> IP ARP rep filtered src 204.12.8.2 0004.274d.02a0,
>>> dst 204.12.8.6
>>> 0002.b9be.2570 wrong cable, interface Ethernet1/0.
>>> IP ARP throttled out the ARP Request for 204.12.8.2.
>>> IP ARP: sent req src 204.12.8.6 0002.b9be.2570,
>>> dst 204.12.8.2 0000.0000.0000
>>> Ethernet1/0.263
>>> IP ARP rep filtered src 204.12.8.2 0004.274d.02a0,
>>> dst 204.12.8.6
>>> 0002.b9be.2570 wrong cable, interface Ethernet1/0.
>>> IP ARP: sent req src 204.12.8.6 0002.b9be.2570,
>>> dst 204.12.8.2 0000.0000.0000
>>> Ethernet1/0.263
>>> IP ARP rep filtered src 204.12.8.2 0004.274d.02a0,
>>> dst 204.12.8.6
>>> 0002.b9be.2570 wrong cable, interface Ethernet1/0.
>>> IP ARP: sent req src 204.12.8.6 0002.b9be.2570,
>>> dst 204.12.8.2 0000.0000.0000
>>> Ethernet1/0.263
>>> IP ARP rep filtered src 204.12.8.2 0004.274d.02a0,
>>> dst 204.12.8.6
>>> 0002.b9be.2570 wrong cable, interface Ethernet1/0.
>>> Success rate is 0 percent (0/5)
>>>
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: nobody@groupstudy.com
>>> [mailto:nobody@groupstudy.com] On Behalf Of
>>> Magmax
>>> Sent: Sunday, 16 April 2006 9:23 AM
>>> To: 'Magmax'; ccielab@groupstudy.com
>>> Subject: RE: CCIE Lab Questions - Mock Lab questions
>>>
>>> Guys,
>>>
>>> These are from a mock lab
>>>
>>> -----Original Message-----
>>> From: nobody@groupstudy.com
>>> [mailto:nobody@groupstudy.com] On Behalf Of
>>> Magmax
>>> Sent: Sunday, 16 April 2006 9:17 AM
>>> To: ccielab@groupstudy.com
>>> Subject: CCIE Lab Questions
>>>
>>> Guys,
>>>
>>> I was doing one of the my last lab and I came across
>>> follow issues
>>>
>>>
>>> Q1. R6 -- BB1 -- R2
>>>
>>> All these routers are connected by Ethernet (R6) or
>>> fast Ethernet ports
>>>
>>> Interface connected to R6 was trunk port (allow only
>>> required vlan) and make
>>> vlan 263 native
>>>
>>> R6 config
>>>
>>> Interface ethernet0/0
>>> No shut
>>>
>>> Interface ethernet0/0.6
>>> Encapsulation dot1q 6
>>> Ip address 193.7.6.6 255.255.255.0
>>>
>>> Interface ethernet0/0.263
>>> Encapsulation dot1q 263 native
>>> Ip address 193.7.6.6 255.255.255.0
>>>
>>>
>>> Switch Config (SW1 port 6)
>>>
>>> Interface fastethernet0/6
>>> Switchport trunk encapsulation dot1q
>>> Switchport mode trunk
>>> Switch trunk allowed vlan 6,263
>>> Switch trunk native 263
>>>
>>>
>>>
>>> Problem
>>>
>>> From R6 unable to ping backbone router or R2
>>>
>>> I don't know what I did wrong here but I found my
>>> self in miserable
>>> situation and since I thought it was core component
>>> of my lab and I never
>>> recovered after that
>>> Can anyone tell me any useful commands to
>>> troubleshoot this issue?
>>> Apparently on normal Ethernet interface if you take
>>> out native keyword it
>>> will work and also from switch config it works
>>>
>>> I wasted 2 hours on this........ Imagine if it was
>>> real lab exam :(
>>>
>>>
>>>
>>> Q2.Where can I find NTP in Cisco documentation DVD
>>> (under what section)
>>> A.I still believe NTP is still confusing topics and
>>> I always forget the
>>> right way
>>>
>>>
>>>
>>> Q3.Another question sometime practice labs are
>>> unclear about when they say
>>> advertise R1, R2, R3 loopback in OSPF
>>>
>>> Does this mean I need to redistribute them or
>>> configure in ospf areas (my
>>> common mistake)
>>>
>>> Q4.Where are VLAN access maps in documentation DVD?
>>>
>>>
>>> Happy Easter everyone :)
>>>
>>>
>>> Regards,
>>>
>>> Ubaid
>>>
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>
> --
> Ivan
>
> _______________________________________________________________________
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