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Author Topic: RFS controller - Default gateway per VLAN  (Read 5470 times)

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Offline David

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RFS controller - Default gateway per VLAN
« on: June 28, 2013, 04:24:21 AM »
Dear All,

Please could you explain me the procedure to define one Default Gateway per each VLAN ?
Into the menu "IP Routing" is only possible to define one Default Gateway and not per VLAN.

Thank you very much for your help.

Best regards,
David.


Offline wings

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Re: RFS controller - Default gateway per VLAN
« Reply #1 on: June 30, 2013, 11:46:59 AM »
Hi,

This is not possible. The wlc will always respond with the IP-address it got the request on and will answer on the corresponding interface. You set the default gateways for traffic that is originated by the wlc and traffic that is routed via the wlc and in both cases you do not need a default gateway per vlan.

Offline David

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Re: RFS controller - Default gateway per VLAN
« Reply #2 on: July 01, 2013, 03:21:47 AM »
Hi,

This is not possible. The wlc will always respond with the IP-address it got the request on and will answer on the corresponding interface. You set the default gateways for traffic that is originated by the wlc and traffic that is routed via the wlc and in both cases you do not need a default gateway per vlan.

And if different VLAN's are not in the same IP ranks ?
If I define a gateway in a DHCP pool I did not need to define a default gateway. Itís correct ?
If the DHCP server is external to the controller, I donít need to define a default gateway. I will automatically receive the external DHCP server. Itís correct ?

Thank you for your collaboration and your help.

Offline hchen01

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Re: RFS controller - Default gateway per VLAN
« Reply #3 on: July 03, 2013, 03:16:02 AM »
One device only have one default gateway, if you can't visit some sub network via the default gateway, you need to create the static IP route on the WLC.

For example:
Management IP address: 1.1.1.1/24 on interface vlan 1, default gateway 1.1.1.254
0.0.0.0/0 via 1.1.1.254

if you can only visit network 3.3.3.0/24 through vlan 2 (2.2.2.2/24 on interface vlan 2, gateway 2.2.2.254)
you need to add IP route:

3.3.3.0/24 via 2.2.2.254


Offline David

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Re: RFS controller - Default gateway per VLAN
« Reply #4 on: July 03, 2013, 07:47:10 AM »
One device only have one default gateway, if you can't visit some sub network via the default gateway, you need to create the static IP route on the WLC.

For example:
Management IP address: 1.1.1.1/24 on interface vlan 1, default gateway 1.1.1.254
0.0.0.0/0 via 1.1.1.254

if you can only visit network 3.3.3.0/24 through vlan 2 (2.2.2.2/24 on interface vlan 2, gateway 2.2.2.254)
you need to add IP route:

3.3.3.0/24 via 2.2.2.254

Thank you very much for your reply and your support.
Cheers,
David.

Offline Fido

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Re: RFS controller - Default gateway per VLAN
« Reply #5 on: July 11, 2013, 01:35:12 AM »
Do you mean that you want device on WLAN1/VLAN1 to use GATEWAY1, and device on WLAN5/VLAN5 to use GATEWAY5?

If so, you just need to ensure that your clients are using DHCP.
On your controller you can set up multiple DHCP servers each with unique settings i.e. unique default gateway.
Then apply each DHCP policy to each VLAN

Example:
DHCP_POLICY_7 = Range 192.168.7.10 to 192.168.7.100, Mask 255.255.255.0, Default Gateway 192.168.7.254

Create interface VLAN7 on controller with static IP on the interface e.g. 192.168.7.252

Configure controller to run DHCP_POLICY_7 on VLAN7

WLAN7 map to VLAN7

So now - any device which will associate to WLAN7 will get DHCP from controller including gateway info.

Of course DHCP server does not need to be on your controller - it can be external device but as long as it is on VLAN7

Do the same for multiple VLANs