From: Erick Bergquist (ebergquist@ameritech.net)
Date: Mon Aug 02 2004 - 00:13:47 GMT-3
You can also put the Native VLAN config on the
ethernet
main interface, if the native keyword is not working
or not available (older IOS's).
Sample:
interface ethernet0/0
ip address 10.20.30.1 255.0.0.0
interface Ethernet0/0.100
encapsulation dot1Q 100
ip address 100.1.1.4 255.0.0.0
--- Pankaj Bhagwanani <pankajbhagwanani@yahoo.com.au>
wrote:
> Hello Everyone
>
> Thanks for all your help.
>
> I tried with a fastEthernet card, and it works....
> so it may be a bug as Richard said
>
> Ive been pulling my hair out over this one..
>
> Kind Regards
> Pankaj
>
> Richard Dumoulin <richard.dumoulin@vanco.es> wrote:
>
> I just tried it. When the vlan is not native on my
> 2600 ethernet interface it works:
>
> Rack05R4#sh run int eth 0/0.100
> Building configuration...
>
> Current configuration : 90 bytes
> !
> interface Ethernet0/0.100
> encapsulation dot1Q 100
> ip address 100.1.1.4 255.0.0.0
> end
>
> Rack05R4#pi 100.1.1.2
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 100.1.1.2, timeout
> is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip
> min/avg/max = 1/3/4 ms
>
>
> But when I change it to native it stops working:
>
> Rack05R4#sh run int eth 0/0.100
> Building configuration...
>
> Current configuration : 97 bytes
> !
> interface Ethernet0/0.100
> encapsulation dot1Q 100 native
> ip address 100.1.1.4 255.0.0.0
> End
>
> Rack05SW1#sh run int fa 0/2
> Building configuration...
>
> Current configuration : 157 bytes
> !
> interface FastEthernet0/2
> description connected to R4
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 100
> switchport mode trunk
> End
>
> Rack05SW1#sh cdp nei | in R4
> Rack05R4 Fas 0/2 122 R
> 2610 Eth 0/0
>
> This is why I think it is a bug on the ethernet
> interface of the 26000, isn't it ?
>
>
> --Richard
>
> -----Original Message-----
> From: Adel Abouchaev
> [mailto:adel@netmasterclass.net]
> Sent: domingo, 01 de agosto de 2004 18:03
> To: Pankaj Bhagwanani
> Cc: ccielab@groupstudy.com
> Subject: Re: Native Vlan Help
>
>
> Is your switch in vtp transparent or vtp server
> mode? Do "sh vlan brief"
> and check if vlan is created. Also you may want to
> send the output of
> "show interface trunk" and "show vlan brie"
> for people of the GroupStudy to check for possible
> problems. Can you
> ping the SVI interface from either router? If you
> can't, do you have arp
> entry installed on router or is it pending? Also you
> may
> want to test cables .. :) I better stop now :)))
>
> Cheers,
>
> Adel Abouchaev
> CCIE#12037
> Netmasterclass LLC
>
>
> Pankaj Bhagwanani wrote:
>
> >Hello
> >
> >I am wondering if someone can help
> >
> >from my curent understanding the native vlan has to
> be the same on each
> >side of the trunk.
> >
> >is this topoplgy posible
> >
> >R4 --- Sw1 --- R1
> >
> >on R1
> >
> >!
> >interface Ethernet0/0
> >no ip address
> >half-duplex
> >!
> >interface Ethernet0/0.1
> >encapsulation dot1Q 6 native
> >ip address 10.10.10.1 255.255.255.0
> >!
> >interface Ethernet0/0.2
> >encapsulation dot1Q 26
> >ip address 10.10.11.1 255.255.255.0
> >!
> >
> >on S1
> >
> >!
> >interface FastEthernet0/1
> >description connection to R1
> >switchport trunk encapsulation dot1q
> >switchport trunk native vlan 6
> >switchport mode trunk
> >no ip address
> >!
> >interface FastEthernet0/5
> >description connection to R4
> >switchport access vlan 6
> >switchport mode access
> >no ip address
> >!
> >interface Vlan6
> >ip address 10.10.10.2 255.255.255.0
> >!
> >
> >on R4
> >
> >!
> >interface Ethernet0
> >ip address 10.10.10.3 255.255.255.0
> >!
> >
> >I can not ping from R1 to R4...or R1 to vlan 6 on
> S1....any ideas
> >How do i attach more hosts/routers to vlan 6
> successfully ?
> >
> >Best Regards
> >Pankaj
> >
> >
> >
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This archive was generated by hypermail 2.1.4 : Fri Sep 03 2004 - 07:02:31 GMT-3