VLAN question ?

VLAN question ?

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Subject Author Date
VLAN question ? Benson 08-16-2004
Posted by Benson on August 16, 2004, 7:26 pm
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Hi,

I have one question about the Cisco VLAN :

Two companies are merged into a new one. They have individual routers,
and they are separated by a WAN Link.

Recently, they are using the same IP scheme ( say 10.0.0.0 ), for the
1st company "A company" is using the VLAN ID : VLAN1,
VLAN2,VLAN3...VLAN100; for the 2nd company is now using VLAN1, VLAN2,
VLAN3.
For preventing any conflict between two companies, I want to reconfig
the VLAN ID for the 2nd company, so I want to use VLAN101, VLAN102,
VLAN103.

Can I not use the default VLAN1 for 2nd company ? But I need to access
these Switches in 2nd company from A company, how can I config IP for
these switches ?

Thank you
Benson


NMFall 20%
Posted by joe on August 17, 2004, 12:10 am
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simple...
give the switches vlan interface ip's for management
in the correct active vlan..

(i.e. on switch B, at company B, using vlan 103)

switch#vlan database
switch(vlan)#vlan 103
switch(vlan)#exit
switch#config t
switch(config)#int vlan 1
switch(config-if)#shut
switch(config-if)#int vlan 103
switch(config-if)#ip addr 10.0.103.101 255.255.255.0
switch(config-if)#exit
!now put a default route to the router gateway, with the wan link
switch(config)#ip default-gateway 10.0.103.1

now you don't need to use vlan 1, and you're set !

bensonlei@yahoo.com.hk (Benson) wrote in message
> Hi,
>
> I have one question about the Cisco VLAN :
>
> Two companies are merged into a new one. They have individual routers,
> and they are separated by a WAN Link.
>
> Recently, they are using the same IP scheme ( say 10.0.0.0 ), for the
> 1st company "A company" is using the VLAN ID : VLAN1,
> VLAN2,VLAN3...VLAN100; for the 2nd company is now using VLAN1, VLAN2,
> VLAN3.
> For preventing any conflict between two companies, I want to reconfig
> the VLAN ID for the 2nd company, so I want to use VLAN101, VLAN102,
> VLAN103.
>
> Can I not use the default VLAN1 for 2nd company ? But I need to access
> these Switches in 2nd company from A company, how can I config IP for
> these switches ?
>
> Thank you
> Benson


Posted by joe on August 17, 2004, 12:11 am
If you were  Registered and logged in, you could reply and use other advanced thread options
simple...
give the switches vlan interface ip's for management
in the correct active vlan..

(i.e. on switch B, at company B, using vlan 103)

switch#vlan database
switch(vlan)#vlan 103
switch(vlan)#exit
switch#config t
switch(config)#int vlan 1
switch(config-if)#shut
switch(config-if)#int vlan 103
switch(config-if)#ip addr 10.0.103.101 255.255.255.0
switch(config-if)#exit
!now put a default route to the router gateway, with the wan link
switch(config)#ip default-gateway 10.0.103.1

now you don't need to use vlan 1, and you're set !

bensonlei@yahoo.com.hk (Benson) wrote in message
> Hi,
>
> I have one question about the Cisco VLAN :
>
> Two companies are merged into a new one. They have individual routers,
> and they are separated by a WAN Link.
>
> Recently, they are using the same IP scheme ( say 10.0.0.0 ), for the
> 1st company "A company" is using the VLAN ID : VLAN1,
> VLAN2,VLAN3...VLAN100; for the 2nd company is now using VLAN1, VLAN2,
> VLAN3.
> For preventing any conflict between two companies, I want to reconfig
> the VLAN ID for the 2nd company, so I want to use VLAN101, VLAN102,
> VLAN103.
>
> Can I not use the default VLAN1 for 2nd company ? But I need to access
> these Switches in 2nd company from A company, how can I config IP for
> these switches ?
>
> Thank you
> Benson


Posted by joe on August 17, 2004, 12:13 am
If you were  Registered and logged in, you could reply and use other advanced thread options
simple...
give the switches vlan interface ip's for management
in the correct active vlan..

(i.e. on switch B, at company B, using vlan 103)

switch#vlan database
switch(vlan)#vlan 103
switch(vlan)#exit
switch#config t
switch(config)#int vlan 1
switch(config-if)#shut
switch(config-if)#int vlan 103
switch(config-if)#ip addr 10.0.103.101 255.255.255.0
switch(config-if)#exit
!now put a default route to the router gateway, with the wan link
switch(config)#ip default-gateway 10.0.103.1

now you don't need to use vlan 1, and you're set !

bensonlei@yahoo.com.hk (Benson) wrote in message
> Hi,
>
> I have one question about the Cisco VLAN :
>
> Two companies are merged into a new one. They have individual routers,
> and they are separated by a WAN Link.
>
> Recently, they are using the same IP scheme ( say 10.0.0.0 ), for the
> 1st company "A company" is using the VLAN ID : VLAN1,
> VLAN2,VLAN3...VLAN100; for the 2nd company is now using VLAN1, VLAN2,
> VLAN3.
> For preventing any conflict between two companies, I want to reconfig
> the VLAN ID for the 2nd company, so I want to use VLAN101, VLAN102,
> VLAN103.
>
> Can I not use the default VLAN1 for 2nd company ? But I need to access
> these Switches in 2nd company from A company, how can I config IP for
> these switches ?
>
> Thank you
> Benson


Posted by joe on August 17, 2004, 1:15 am
If you were  Registered and logged in, you could reply and use other advanced thread options
simple...
give the switches vlan interface ip's for management
in the correct active vlan..

(i.e. on switch B, at company B, using vlan 103)

switch#vlan database
switch(vlan)#vlan 103
switch(vlan)#exit
switch#config t
switch(config)#int vlan 1
switch(config-if)#shut
switch(config-if)#int vlan 103
switch(config-if)#ip addr 10.0.103.101 255.255.255.0
switch(config-if)#exit
!now put a default route to the router gateway, with the wan link
switch(config)#ip default-gateway 10.0.103.1

now you don't need to use vlan 1, and you're set !

bensonlei@yahoo.com.hk (Benson) wrote in message
> Hi,
>
> I have one question about the Cisco VLAN :
>
> Two companies are merged into a new one. They have individual routers,
> and they are separated by a WAN Link.
>
> Recently, they are using the same IP scheme ( say 10.0.0.0 ), for the
> 1st company "A company" is using the VLAN ID : VLAN1,
> VLAN2,VLAN3...VLAN100; for the 2nd company is now using VLAN1, VLAN2,
> VLAN3.
> For preventing any conflict between two companies, I want to reconfig
> the VLAN ID for the 2nd company, so I want to use VLAN101, VLAN102,
> VLAN103.
>
> Can I not use the default VLAN1 for 2nd company ? But I need to access
> these Switches in 2nd company from A company, how can I config IP for
> these switches ?
>
> Thank you
> Benson


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