[c-nsp] How to get VLAN from Switch to a Router via another switch

Voll, Scott Scott.Voll at wesd.org
Mon Nov 14 11:02:40 EST 2005 

What do you get with a sh vlan?

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Skeeve Stevens
Sent: Friday, November 11, 2005 4:25 PM
To: mksmith at adhost.com; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] How to get VLAN from Switch to a Router via another
switch


OK.. The 3550-A (with the PC) is now:

interface FastEthernet0/2
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 900
 switchport mode trunk
!
interface FastEthernet0/3
 switchport access vlan 900
 switchport mode access
 switchport nonegotiate

And

Switch#show mac-address-table interface fastEthernet 0/3
          Mac Address Table
-------------------------------------------

Vlan    Mac Address       Type        Ports
----    -----------       --------    -----
 900    000d.6099.13b4    DYNAMIC     Fa0/3
Total Mac Addresses for this criterion: 1 

So it's seeing the MAC of the PC...

Should the port 2 - trunk on the 3550-A also see the mac from Vlan900?
Because it isn't.

Switch#show mac-address-table interface fastEthernet 0/2
          Mac Address Table
-------------------------------------------

Vlan    Mac Address       Type        Ports
----    -----------       --------    -----
Switch#

I tried Switchport nonegotiate, but it didn't seem to do anything
either.

...Skeeve

_______________________________________________________
Skeeve Stevens, RHCE     Email: skeeve at skeeve.org
Si vis pacem, para bellum


-----Original Message-----
From: Michael K. Smith - Adhost [mailto:mksmith at adhost.com] 
Sent: Saturday, 12 November 2005 11:07 AM
To: skeeve at skeeve.org; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] How to get VLAN from Switch to a Router via another
switch

Ahh, sorry.  Well, the "switchport mode dynamic desirable" on port 3 is
a
trunking command, so I wonder if the port is thinking it's a trunk?  Try
issuing the following on port 3:

Switchport mode access
Switchport nonegotiate

You may want to do a "sho mac-address-table int fa0/3" before you do the
commands above to see if you are seeing the MAC address of the PC and
also
look at "sho interface fa0/3 trunk" to see if it's in trunking mode.

Mike

-----Original Message-----
From: Skeeve Stevens [mailto:skeeve at skeeve.org]
Sent: Friday, November 11, 2005 3:57 PM
To: mksmith at adhost.com; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] How to get VLAN from Switch to a Router via another
switch

 
No.. The PC is in port 3 on the 3550-A... The trunk to the other switch
is
Port 2 on the 3550-A.


_______________________________________________________
Skeeve Stevens, RHCE     Email: skeeve at skeeve.org
Si vis pacem, para bellum


-----Original Message-----
From: Michael K. Smith - Adhost [mailto:mksmith at adhost.com]
Sent: Saturday, 12 November 2005 2:58 AM
To: skeeve at skeeve.org; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] How to get VLAN from Switch to a Router via another
switch

Hello:

It looks like you've set up a trunk port facing your PC.  That won't
work
unless you have a VLAN-aware NIC.  On the port facing the PC, try:

Switchport mode access
Switchport access vlan 900

You probably want to "default interface fa0/2" from a global config
prompt
to clear the trunking info out first.

Mike

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Skeeve Stevens
Sent: Friday, November 11, 2005 7:10 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] How to get VLAN from Switch to a Router via another
switch


Hey everyone!

I'm trying to get a couple of ports on a 3550 to appear on a router.
normally easy, but I have another switch in between.

Hardware: 7206, 2 * 3550

Machine (1.1.1.2/30)
	|
	| Cat 3550-A - port 3 - dot1q 900
	|
	| Cat 3550-A - port 2 trunk port to 3550-B)
	|
	| Cat 3550-B (port 4 trunk port from 3550A)
	|
	?????
	|
	| Cat 3550-B - port gig0/11 Trunk to 7206
	|
    7206 VXR - GigE .900 with (1.1.1.1/30)

Question is. how do I get dot1q trunk from 3550-A onto the 7206vxr?

How to connect the two trunk ports.. I'm not sure.

Config:

3550-A

interface FastEthernet0/2
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,900
 switchport mode trunk
!
interface FastEthernet0/3
 switchport access vlan 900
 switchport mode dynamic desirable

PC plugged into port 3 with 1.1.12/30


3550-B

interface FastEthernet0/4
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,900,901  switchport mode trunk .
interface GigabitEthernet0/1
 description Trunk to 7204VXR-G1/0
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,12,301-310,900,901  switchport mode
trunk


7206vxr

interface GigabitEthernet1/0.900
 description Test Trunk
 encapsulation dot1Q 900
 ip address 1.1.1.1 255.255.255.252
!


Thanks!

_______________________________________________________
Skeeve Stevens, RHCE     Email: skeeve at skeeve.org
Website: www.skeeve.org  - Telephone: (0414) 753 383
Address: P.O Box 1035, Epping, NSW, 1710, Australia

eIntellego - skeeve at eintellego.net - www.eintellego.net
_______________________________________________________
I'm a groove licked love child king of the verse Si vis pacem, para
bellum




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