Re: Router on a stick question

Thank Marc !!
You are right that I am running IOU.

I am still trying to understand which o/p.

I thought the o/p was ok due to spanning-tree running on the links.

On Fri, Mar 15, 2013 at 2:48 PM, marc abel <marcabel_at_gmail.com> wrote:

> That seems like an artifact of running IOU. I noticed in your first show
> int trunk that it showed there were no vlans it was forwarding for on the
> trunks even though they were allowed. That is why I was asking about
> spanning-tree, I think this is just likely a software glitch for you.
>
>
> On Fri, Mar 15, 2013 at 4:36 PM, Maneesh Chawla <coolmaneesh_at_gmail.com>wrote:
>
>> Strange thing happened.
>>
>> I had below on sw1 :
>>
>> Rack1SW1#show interfa trunk
>>
>> Port Mode Encapsulation Status Native vlan
>> Et2/0 desirable n-802.1q trunking 1
>> Et2/1 desirable n-802.1q trunking 1
>> Et2/2 desirable n-802.1q trunking 1
>> Et3/0 desirable n-802.1q trunking 1
>>
>> <snipped from show run>
>>
>> !
>> interface Ethernet2/0
>> duplex auto
>> !
>> interface Ethernet2/1
>> duplex auto
>> !
>> interface Ethernet2/2
>> duplex auto
>> !
>>
>>
>>
>> Now, made the below change and everything worked.
>>
>> Enter configuration commands, one per line. End with CNTL/Z.
>> Rack1SW1(config)#interface range e2/0-2
>> Rack1SW1(config-if-range)#switchport trunk encap dot1
>> Rack1SW1(config-if-range)#switchport mode trunk
>> Rack1SW1(config-if-range)#
>>
>>
>>
>> Can someone help me understand this ?
>>
>> Thanks
>> Maneesh
>>
>> On Fri, Mar 15, 2013 at 2:24 PM, marc abel <marcabel_at_gmail.com> wrote:
>>
>>> Does VLAN 67 exist on Sw2?
>>>
>>> Please also provide show int trunk from SW2, as well as a show span vlan
>>> 67 on Sw1/
>>>
>>>
>>>
>>> On Fri, Mar 15, 2013 at 3:58 PM, Kapil Atrish <kapilatrish_at_hotmail.com>wrote:
>>>
>>>> Can you add int vlan 67 on Switch 2 as well and see which side is
>>>> pingable
>>>> from there? Perhaps, create the following int on SW2 and try to ping
>>>> Router
>>>> and SW1 both to get an idea which side is failing. SW2:
>>>> interface Vlan67
>>>> ip address 155.15.67.10 255.255.255.0
>>>> Thanks,Kapil Also, > Date: Fri, 15 Mar 2013 10:54:32 -0700
>>>> > Subject: Re: Router on a stick question
>>>> > From: coolmaneesh_at_gmail.com
>>>> > To: jb.poplawski_at_gmail.com
>>>> > CC: ccielab_at_groupstudy.com
>>>> >
>>>> > Auto-negotiated
>>>> >
>>>> > Rack1SW1#show interface trunk
>>>> >
>>>> > Port Mode Encapsulation Status Native
>>>> vlan
>>>> > Et2/0 desirable n-802.1q trunking 1
>>>> > Et2/1 desirable n-802.1q trunking 1
>>>> > Et2/2 desirable n-802.1q trunking 1
>>>> > Et3/0 desirable n-802.1q trunking 1
>>>> > Et3/1 desirable n-802.1q trunking 1
>>>> > Et3/2 desirable n-802.1q trunking 1
>>>> > Et4/0 desirable n-isl trunking 1
>>>> > Et4/1 desirable n-isl trunking 1
>>>> > Et4/2 desirable n-isl trunking 1
>>>> >
>>>> > Port Vlans allowed on trunk
>>>> > Et2/0 1-4094
>>>> > Et2/1 1-4094
>>>> > Et2/2 1-4094
>>>> > Et3/0 1-4094
>>>> > Et3/1 1-4094
>>>> > Et3/2 1-4094
>>>> > Et4/0 1-4094
>>>> > Et4/1 1-4094
>>>> > Et4/2 1-4094
>>>> >
>>>> > Port Vlans allowed and active in management domain
>>>> > Et2/0 1,67,79,100
>>>> > Et2/1 1,67,79,100
>>>> > Et2/2 1,67,79,100
>>>> > Et3/0 1,67,79,100
>>>> > Et3/1 1,67,79,100
>>>> > Et3/2 1,67,79,100
>>>> > Et4/0 1,67,79,100
>>>> > Et4/1 1,67,79,100
>>>> > Et4/2 1,67,79,100
>>>> >
>>>> > Port Vlans in spanning tree forwarding state and not
>>>> pruned
>>>> > Et2/0 1,67,79,100
>>>> > Et2/1 none
>>>> > Et2/2 none
>>>> > Et3/0 none
>>>> > Et3/1 none
>>>> > Et3/2 none
>>>> > Et4/0 1,67,79,100
>>>> > Et4/1 1,67,79,100
>>>> > Et4/2 1,67,79,100
>>>> >
>>>> >
>>>> > On Fri, Mar 15, 2013 at 10:51 AM, JB Poplawski
>>>> <jb.poplawski_at_gmail.com>wrote:
>>>> >
>>>> > > Interface up on the switch? Is Switch A supposed to trunk
>>>> somewhere, I
>>>> > > don't see it.
>>>> > >
>>>> > >
>>>> > > On Fri, Mar 15, 2013 at 12:46 PM, Maneesh Chawla
>>>> <coolmaneesh_at_gmail.com>wrote:
>>>> > >
>>>> > >> Topo
>>>> > >> -------
>>>> > >>
>>>> > >> .7 .6
>>>> > >> SW1------------------------------R6
>>>> > >>
>>>> > >> (155.15.67.0/24 vlan 67)
>>>> > >>
>>>> > >>
>>>> > >> Physical topo
>>>> > >> --------------------
>>>> > >>
>>>> > >>
>>>> > >>
>>>>
>>>> SW1-(e2/0-2)-------------------(e2/0-2)-SW2-(e1/2)-------------------(e0/0)-R
>>>> 6
>>>> > >>
>>>> > >>
>>>> > >> I have attached below the configs. The example is taken from INE
>>>> videos
>>>> > >> module 1 lesson 1.
>>>> > >>
>>>> > >> not able to ping from R6 to SW1.
>>>> > >> Not sure what am I missing here. Can the gurus help out ?
>>>> > >>
>>>> > >> Attached the configs.
>>>> > >> R6
>>>> > >> -------
>>>> > >>
>>>> > >> Rack1R6#show run
>>>> > >> Building configuration...
>>>> > >>
>>>> > >> Current configuration : 1414 bytes
>>>> > >> !
>>>> > >> ! Last configuration change at 18:19:48 CET Fri Mar 15 2013
>>>> > >> !
>>>> > >> version 12.4
>>>> > >> service timestamps debug datetime msec
>>>> > >> service timestamps log datetime msec
>>>> > >> no service password-encryption
>>>> > >> !
>>>> > >> hostname Rack1R6
>>>> > >> !
>>>> > >> boot-start-marker
>>>> > >> boot-end-marker
>>>> > >> !
>>>> > >> !
>>>> > >> no aaa new-model
>>>> > >> clock timezone CET 1
>>>> > >> mmi polling-interval 60
>>>> > >> no mmi auto-configure
>>>> > >> no mmi pvc
>>>> > >> mmi snmp-timeout 180
>>>> > >> ip source-route
>>>> > >> ip auth-proxy max-login-attempts 5
>>>> > >> ip admission max-login-attempts 5
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> ip cef
>>>> > >> no ip domain lookup
>>>> > >> no ipv6 traffic interface-statistics
>>>> > >> no ipv6 cef
>>>> > >> !
>>>> > >> multilink bundle-name authenticated
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> redundancy
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> interface Ethernet0/0
>>>> > >> no ip address
>>>> > >> !
>>>> > >> interface Ethernet0/0.67
>>>> > >> encapsulation dot1Q 67
>>>> > >> ip address 155.15.67.6 255.255.255.0
>>>> > >> !
>>>> > >> interface Ethernet0/1
>>>> > >> no ip address
>>>> > >> !
>>>> > >> interface Ethernet0/2
>>>> > >> no ip address
>>>> > >> !
>>>> > >> interface Ethernet0/3
>>>> > >> no ip address
>>>> > >> !
>>>> > >> interface Serial1/0
>>>> > >> no ip address
>>>> > >> serial restart-delay 0
>>>> > >> !
>>>> > >> interface Serial1/1
>>>> > >> no ip address
>>>> > >> serial restart-delay 0
>>>> > >> !
>>>> > >> interface Serial1/2
>>>> > >> no ip address
>>>> > >> serial restart-delay 0
>>>> > >> !
>>>> > >> interface Serial1/3
>>>> > >> no ip address
>>>> > >> serial restart-delay 0
>>>> > >> !
>>>> > >> ip forward-protocol nd
>>>> > >> !
>>>> > >> !
>>>> > >> no ip http server
>>>> > >> no ip http secure-server
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> control-plane
>>>> > >> !
>>>> > >> !
>>>> > >> line con 0
>>>> > >> exec-timeout 0 0
>>>> > >> privilege level 15
>>>> > >> logging synchronous
>>>> > >> line aux 0
>>>> > >> exec-timeout 0 0
>>>> > >> privilege level 15
>>>> > >> line vty 0 4
>>>> > >> login
>>>> > >> transport input all
>>>> > >> !
>>>> > >> exception data-corruption buffer truncate
>>>> > >> end
>>>> > >>
>>>> > >>
>>>> > >>
>>>> > >>
>>>> > >> sw1
>>>> > >> -------
>>>> > >>
>>>> > >>
>>>> > >> Rack1SW1#show run
>>>> > >> Building configuration...
>>>> > >>
>>>> > >> Current configuration : 1597 bytes
>>>> > >> !
>>>> > >> ! Last configuration change at 18:10:16 CET Fri Mar 15 2013
>>>> > >> !
>>>> > >> version 15.0
>>>> > >> service timestamps debug datetime msec
>>>> > >> service timestamps log datetime msec
>>>> > >> no service password-encryption
>>>> > >> !
>>>> > >> hostname Rack1SW1
>>>> > >> !
>>>> > >> boot-start-marker
>>>> > >> boot-end-marker
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> no aaa new-model
>>>> > >> clock timezone CET 1
>>>> > >> !
>>>> > >> ip cef
>>>> > >> no ip domain-lookup
>>>> > >> !
>>>> > >> no ipv6 cef
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> spanning-tree mode pvst
>>>> > >> spanning-tree extend system-id
>>>> > >> !
>>>> > >> vlan internal allocation policy ascending
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> interface Ethernet0/0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet0/1
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet0/2
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet0/3
>>>> > >> no switchport
>>>> > >> ip address 155.15.37.7 255.255.255.0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet1/0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet1/1
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet1/2
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet1/3
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet2/0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet2/1
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet2/2
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet2/3
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet3/0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet3/1
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet3/2
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet3/3
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet4/0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet4/1
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet4/2
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet4/3
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Vlan1
>>>> > >> no ip address
>>>> > >> shutdown
>>>> > >> !
>>>> > >> interface Vlan67
>>>> > >> ip address 155.15.67.7 255.255.255.0
>>>> > >> !
>>>> > >> interface Vlan79
>>>> > >> ip address 155.15.79.7 255.255.255.0
>>>> > >> !
>>>> > >> !
>>>> > >> ip forward-protocol nd
>>>> > >> no ip http server
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> control-plane
>>>> > >> !
>>>> > >> !
>>>> > >> line con 0
>>>> > >> exec-timeout 0 0
>>>> > >> privilege level 15
>>>> > >> logging synchronous
>>>> > >> line aux 0
>>>> > >> line vty 0 4
>>>> > >> login
>>>> > >> transport input all
>>>> > >> !
>>>> > >> end
>>>> > >>
>>>> > >>
>>>> > >>
>>>> > >> sw2
>>>> > >> -------
>>>> > >>
>>>> > >> Rack1SW2#show run
>>>> > >> Building configuration...
>>>> > >>
>>>> > >> Current configuration : 1674 bytes
>>>> > >> !
>>>> > >> ! Last configuration change at 17:35:16 CET Fri Mar 15 2013
>>>> > >> !
>>>> > >> version 15.0
>>>> > >> service timestamps debug datetime msec
>>>> > >> service timestamps log datetime msec
>>>> > >> no service password-encryption
>>>> > >> !
>>>> > >> hostname Rack1SW2
>>>> > >> !
>>>> > >> boot-start-marker
>>>> > >> boot-end-marker
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> no aaa new-model
>>>> > >> clock timezone CET 1
>>>> > >> !
>>>> > >> ip cef
>>>> > >> no ip domain-lookup
>>>> > >> !
>>>> > >> no ipv6 cef
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> spanning-tree mode pvst
>>>> > >> spanning-tree extend system-id
>>>> > >> !
>>>> > >> vlan internal allocation policy ascending
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> interface Ethernet0/0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet0/1
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet0/2
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet0/3
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet1/0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet1/1
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet1/2
>>>> > >> switchport trunk encapsulation dot1q
>>>> > >> switchport mode trunk
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet1/3
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet2/0
>>>> > >> switchport trunk encapsulation dot1q
>>>> > >> switchport mode trunk
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet2/1
>>>> > >> switchport trunk encapsulation dot1q
>>>> > >> switchport mode trunk
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet2/2
>>>> > >> switchport trunk encapsulation dot1q
>>>> > >> switchport mode trunk
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet2/3
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet3/0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet3/1
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet3/2
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet3/3
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet4/0
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet4/1
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet4/2
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Ethernet4/3
>>>> > >> duplex auto
>>>> > >> !
>>>> > >> interface Vlan1
>>>> > >> no ip address
>>>> > >> shutdown
>>>> > >> !
>>>> > >> !
>>>> > >> ip forward-protocol nd
>>>> > >> no ip http server
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> !
>>>> > >> control-plane
>>>> > >> !
>>>> > >> !
>>>> > >> line con 0
>>>> > >> exec-timeout 0 0
>>>> > >> privilege level 15
>>>> > >> logging synchronous
>>>> > >> line aux 0
>>>> > >> line vty 0 4
>>>> > >> login
>>>> > >> transport input all
>>>> > >> !
>>>> > >> end
>>>> > >>
>>>> > >>
>>>> > >> Blogs and organic groups at http://www.ccie.net
>>>> > >>
>>>> > >>
>>>> _______________________________________________________________________
>>>> > >> Subscription information may be found at:
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>>>> >
>>>> >
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>>>> >
>>>> _______________________________________________________________________
>>>> > Subscription information may be found at:
>>>> > http://www.groupstudy.com/list/CCIELab.html
>>>>
>>>>
>>>> Blogs and organic groups at http://www.ccie.net
>>>>
>>>> _______________________________________________________________________
>>>> Subscription information may be found at:
>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Marc Abel
>>> CCIE #35470
>>> (Routing and Switching)
>>>
>>
>>
>
>
> --
> Marc Abel
> CCIE #35470
> (Routing and Switching)

Blogs and organic groups at http://www.ccie.net
Received on Fri Mar 15 2013 - 14:51:47 ART