RV042 second DHCP issue

lukyluke17 · ‎10-21-2013

Hy all,

I have a CISCO RV042 in a network with 2 subnets 192.168.1.x and 192.168.2.x and I want multiple DHCP on both subnets. How can I do that?

If I use a second router for the second subnet (192.168.2.x) to use its DHCP. The bandwith management will work? Do I need port VLANs?

The network is like this:

The RV042 is the main router thru it we acces the internet, it also suplies DHCP 192.168.1.x, I enabled multiple subnet for 192.168.2.x.

The reason I want 2 subnets is beacause I have 2 acces points for wireless clients and I want to use rate control on WAN with bandwith management from RV042 too give wired clients more bandwith than wireless clients.

I know that RV042 doesn't supply multiple dhcp like RV180,but I needed dual WAN.

Thank You

Kremena Ivanova · ‎10-21-2013

Hi,

You can use a second router only as DHCP server for the second subnet. On it you need to configure static root that the default rout (0.0.0.0) has a gateway the LAN IP of RV042-(192.168.2.x ). This way the second subnet will use internet from RV042.

RV042 does not support interVLAN routing. This means that it cannot manage access from the first subent to the second. If you need such access your second router should support it

LAN ports on RV042 does not support trunk. Which means that you need to have 2 ports on the switch, connected to 2 ports on RV042. Each port configured Access, untagged (for the respective suben 1 or 2)

Theoreticaly it should work with one cable from the switch to the router and the switch port configured as General, VLAN1 untagged and VLAN2 untagged.

Regards,

Kremena

lukyluke17 · ‎10-22-2013

Hi,

Thank you for the answer, but my issue remains, below I tried to write a little bit more

If I make the configuration like this:

On CISCO RV042:

Port based VLANs:

VLAN 1 on LAN 1

VLAN 2 on LAN 2

On AT-FS750/24 switch:

Port-based VLANs:

VLAN 1 for 2,3,4 ports where 2,3 are the AP's (TL-WA901ND) and 4 uplink to RV042

VLAN 2 for the rest, let's say 5,6,7,8,9, etc ports that are for wired clients.

Tagged-based (802.1q):

VLAN ID 11 for 2,3,4 ports where 2,3 ports are tagged are the AP's (TL-WA901ND) and 4 untagged uplink to RV042.

VLAN ID 22 for 2,3,4 ports where 2,3 ports are tagged are the AP's (TL-WA901ND) and 4 untagged uplink to RV042.

On AP's (TL-WA901ND):

Multi-SSID with tagged based VLAN:

SSID 1 on VLAN ID 11

SSID 2 on VLAN ID 22

If I use the second router (not supporting VLANs) only for DHCP for the wired clients with the configuration:

-In the WAN I'll plug RV042 LAN 2 (VLAN 2) and from its LAN 1 I'll connect LAN 5 (VLAN 2) in the switch.

second router WAN:

IP: 192.168.2.2

SM: 255.255.255.0

DG: 192.168.2.1

DNS: 192.168.2.1

For DHCP

LAN1:

IP: 192.168.3.3

SM: 255.255.255.0

It will work to split wireless from wired ?

How can I split the 2 wireless networks in guests and business more efficient?

Let's say the wireless clients from "SSID 1" have to have a guaranteed bandwidth.!

How can I set it up so the wireless clients gets different IP class on the 2 wireless networks?

Can I use the rate control from RV042 on the IP (192.168.2.2) of the second router?

My problem is that I need all the subnet available from RV042 DHCP for the wireless clients (192.168.1.x), because RV042 can route only in class C (254).

I configured the static IP's in 192.168.2.x subnet for Ethernet equipments, I used multiple subnets from RV042.

Momentarily I use COS from the switch for the tagged VLAN to prioritize the traffic, but this is no longer an option for me.

Can a CISCO RV180 make a difference in this configuration?

Thank you,

Dragos

Kremena Ivanova · ‎10-24-2013

Hi,

It will work to split wireless from wired ? Yes, the configuration on RV042- port 1 is in VLAN1 and port 2 is in VLAN2, insure that there is no communication between the 2 subnets

How can I split the 2 wireless networks in guests and business more efficient?

Let's say the wireless clients from "SSID 1" have to have a guaranteed bandwidth.!

How can I set it up so the wireless clients gets different IP class on the 2 wireless networks?

-You have 2 additional VLANs now 11 and 22 - for those you need 2 different subnets and some DHCP to give IP addresses

Can I use the rate control from RV042 on the IP (192.168.2.2) of the second router? Yes, you can configure rate control for that subnet.

Kremena Ivanova · ‎10-21-2013

I think you should consider as option, for example:

-to use one subnet only

-to configure static IPs on the wired devices - from 1 to 99

-to configure the DHCP server on the router from 100 to 200 - this will be used only from the wireless devices

-configure the rate control based on those 2 ranges

Regards,

Kremena