Ethernet Switches & Routers

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Posts: 1
Registered: ‎04-24-2013

Default VLAN Change Problem

Hi all,

Our network was originally built with devices on VLAN1.  Now for it's time for us to grow, and we've decided to change the name of the default VLAN to 1000 and leave the devices on VLAN1.  When we made the change, we were no longer able to ping devices that were on the same switch, but different VLANs.  Any ideas?  Thanks in advance for any and all! Here's the config:

ver 07.4.00cT7f1

!

stack unit 1

  module 1 fcx-48-port-management-module

  module 2 fcx-cx4-2-port-16g-module

  priority 128

  stack-port 1/2/1 1/2/2

stack unit 2

  module 1 fcx-48-port-management-module

  module 2 fcx-cx4-2-port-16g-module

  priority 64

  stack-port 2/2/1 2/2/2

stack unit 3

  module 1 fcx-48-port-management-module

  module 2 fcx-cx4-2-port-16g-module

  priority 32

  stack-port 3/2/1 3/2/2

stack unit 4

  module 1 fcx-48-port-management-module

  module 2 fcx-cx4-2-port-16g-module

  priority 16

  stack-port 4/2/1 4/2/2

stack enable

stack mac 0000.0061.7370

!

!

!

trunk ethe 1/1/1 ethe 4/1/4

port-name "Trunk_with_e4/1/4" ethernet 1/1/1

port-name "Trunk_with_e1/1/1" ethernet 4/1/4

!

spanning-tree single

!

vlan 1 by port

tagged ethe 1/1/1 ethe 1/1/25 ethe 1/1/36 to 1/1/48 ethe 2/1/46 ethe 3/1/33 ethe 4/1/3 to 4/1/4

untagged ethe 1/1/3 to 1/1/22 ethe 2/1/3 ethe 2/1/7 ethe 2/1/10 ethe 2/1/18 to 2/1/20 ethe 2/1/22 to 2/1/23 ethe 2/1/27 to 2/1/28 ethe 2/1/30 to 2/1/31 ethe 2/1/33 to 2/1/35 ethe 2/1/39 ethe 2/1/41 to 2/1/43 ethe 2/1/45 ethe 2/1/47 to 2/1/48 ethe 3/1/3 ethe 3/1/10 ethe 3/1/14 ethe 3/1/25 ethe 3/1/29 ethe 4/1/1 to 4/1/2

spanning-tree

!

vlan 8 by port

tagged ethe 1/1/1 ethe 3/1/33 ethe 4/1/4

spanning-tree

!

vlan 44 by port

tagged ethe 1/1/1 ethe 1/1/47 ethe 2/1/46 ethe 3/1/33 ethe 4/1/3 to 4/1/4

untagged ethe 1/1/23 to 1/1/24 ethe 1/1/26 to 1/1/35 ethe 2/1/1 to 2/1/2 ethe 2/1/4 to 2/1/6 ethe 2/1/9 ethe 2/1/11 to 2/1/14 ethe 2/1/21 ethe 2/1/24 to 2/1/26 ethe 2/1/32 ethe 2/1/36 ethe 2/1/40 ethe 2/1/44 ethe 3/1/1 to 3/1/2 ethe 3/1/4 to 3/1/6 ethe 3/1/8 to 3/1/9 ethe 3/1/11 to 3/1/13 ethe 3/1/17 to 3/1/24 ethe 3/1/28 ethe 3/1/30 to 3/1/31 ethe 4/1/5 to 4/1/34

spanning-tree

!

vlan 50 by port

tagged ethe 1/1/1 ethe 4/1/4

spanning-tree

!

vlan 66 by port

tagged ethe 1/1/1 ethe 2/1/46 ethe 4/1/4

spanning-tree

!

vlan 99 by port

tagged ethe 1/1/1 ethe 4/1/4

untagged ethe 2/1/8 ethe 4/1/44 to 4/1/48

spanning-tree

!

vlan 192 by port

tagged ethe 1/1/1 ethe 4/1/3 to 4/1/4

untagged ethe 2/1/15 to 2/1/17 ethe 2/1/29 ethe 2/1/37 to 2/1/38 ethe 3/1/7 ethe 3/1/15 to 3/1/16 ethe 3/1/26 to 3/1/27 ethe 3/1/32 ethe 4/1/40

spanning-tree

!

vlan 1000 name DEFAULT-VLAN by port

spanning-tree

!

!

!

!

gvrp-enable

!

aaa authentication web-server default local

aaa authentication login default local

default-vlan-id 1000

enable super-user-password 8

hostname asp-switch-stack

ip address 10.44.5.9 255.255.0.0

ip dns server-address 10.44.1.5

no ip dhcp-client auto-update enable

no ip dhcp-client enable

ip default-gateway 10.44.1.1

logging host 10.44.2.234

logging persistence

no telnet server

username admin password 8

fdp run

snmp-server community 0 ro

snmp-server community 0 rw

snmp-server contact ""

snmp-server enable ethe 1/1/1 ethe 4/1/4

snmp-server location "Air Support"

snmp-server host 10.44.1.15 version v2c 1

clock summer-time

clock timezone us Eastern

sntp server 10.44.1.3 4

no web-management http

web-management https

hitless-failover enable

interface ethernet 1/1/1

port-name Trunk_with_e4/1/4

dual-mode

!

interface ethernet 1/1/2

stp-bpdu-guard

!

interface ethernet 1/1/3

port-name Harris Platinum Router

stp-bpdu-guard

..........................................................

Frequent Contributor
Posts: 118
Registered: ‎06-15-2009

Re: Default VLAN Change Problem

ddavidson,

This looks like an expected behavior. In a default vlan, all the ports are generally untagged & if any of those ports in the default vlan are moved to another vlan,  they will be removed from default vlan. Thus any traffic flowing through those ports will be affected. I am checking on this & shall get back to you if I happen to find anything further.

thx

Deepti

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