VLAN IP address

[HermeszData]

OK ... Explain this to me like I am a 3 year old!!!!!!!!!

I know we normally have only one IP address configured on our switches for management purposes. I chose to keep this on VLAN1 w/ 10.10.11.15/27 on a 2950T-25 Version 12.1(22)EA13.

I set up 4 additional VLANs, 2-5, an no ip addresses. When I issue a no shut on any of the additional VLANs, it shuts down VLAN1 and moves the IP address to that VLAN.

What Gives?

I have been trying for the past few days to do some of the Chap9 exercises without success.

[crissa]

OK ... Explain this to me like I am a 3 year old!!!!!!!!!

I know we normally have only one IP address configured on our switches for management purposes. I chose to keep this on VLAN1 w/ 10.10.11.15/27 on a 2950T-25 Version 12.1(22)EA13.

I set up 4 additional VLANs, 2-5, an no ip addresses. When I issue a no shut on any of the additional VLANs, it shuts down VLAN1 and moves the IP address to that VLAN.

What Gives?

I have been trying for the past few days to do some of the Chap9 exercises without success.

Hello,
sorry, I can't explain why that happens. But it is a good idea not to use vlan 1, even in a home lab. Try to use a different vlan for your management vlan.
Bye, Tore

[crissa]

[...]

I set up 4 additional VLANs, 2-5, an no ip addresses. When I issue a no shut on any of the additional VLANs, it shuts down VLAN1 and moves the IP address to that VLAN.

[...]

Hello,
do you setup the vlan database for the new vlans (2-5)?
Bye, Tore

[HermeszData]

Hello,
sorry, I can't explain why that happens. But it is a good idea not to use vlan 1, even in a home lab. Try to use a different vlan for your management vlan.
Bye, Tore

To reply#1 ...Understood,but what ever other vlan I issue No Shut on effectively becomes the management VLAN (no has IP address)

[HermeszData]

Hello,
do you setup the vlan database for the new vlans (2-5)?
Bye, Tore

This is how mine reads:
Switch(vlan)#sh
VLAN ISL Id: 1
Name: default
Media Type: Ethernet
VLAN 802.10 Id: 100001
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No
VLAN ISL Id: 2
Name: Sales
Media Type: Ethernet
VLAN 802.10 Id: 100002
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No
VLAN ISL Id: 3
Name: Marketing
Media Type: Ethernet
VLAN 802.10 Id: 100003
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No
VLAN ISL Id: 4
Name: Finance
Media Type: Ethernet
VLAN 802.10 Id: 100004
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No
VLAN ISL Id: 5
Name: HR
Media Type: Ethernet
VLAN 802.10 Id: 100005
State: Operational
MTU: 1500
Backup CRF Mode: Disabled
Remote SPAN VLAN: No
VLAN ISL Id: 1002
Name: fddi-default
Media Type: FDDI
VLAN 802.10 Id: 101002
State: Operational
MTU: 1500
Bridge Type: SRB
Backup CRF Mode: Disabled
Remote SPAN VLAN: No
VLAN ISL Id: 1003
Name: token-ring-default
Media Type: Token Ring
VLAN 802.10 Id: 101003
State: Operational
MTU: 1500
Bridge Type: SRB
Backup CRF Mode: Disabled
Remote SPAN VLAN: No
VLAN ISL Id: 1004
Name: fddinet-default
Media Type: FDDI Net
VLAN 802.10 Id: 101004
State: Operational
MTU: 1500
STP Type: IEEE
Backup CRF Mode: Disabled
Remote SPAN VLAN: No
VLAN ISL Id: 1005
Name: trnet-default
Media Type: Token Ring Net
VLAN 802.10 Id: 101005
State: Operational
MTU: 1500
STP Type: IBM
Backup CRF Mode: Disabled
Remote SPAN VLAN: No

[crissa]

Hello,
I know that we sometimes have to shutdown vlan 1 on a (customer) switch so that vlan 100 (the management interface) becomes the "active" interface.

Maybe someone else could explain this?
Bye, Tore