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Disable DHCP Relay/Forwarding

Discussion in 'Tomato Firmware' started by anonim, Dec 18, 2012.

  1. anonim

    anonim Serious Server Member

    I have a basic network consisting of an internal 10.0.0.0/24 address space with its own DHCP server. I then use a Tomato router/access point in the 192.168.1.0/24 network which also has the DHCP server feature enabled.

    Occasionally, when a device connects to the access point, rather than pulling a 192.168.1.X address from the router/access point, it pulls a 10.0.0.X address from my internal DHCP server. I want to prevent DHCP discover requests from reaching the 10.0.0.0 network from devices that connect through the access point.

    Is there a way to do this?
     
  2. rafwes

    rafwes Serious Server Member

    1. Separate Networks with VLAN
    2. Serve all addresses with one server
    3. Use ebtables to block DHCP

    Being the last option the worst of the 3.
     
    koitsu likes this.
  3. anonim

    anonim Serious Server Member

    Sorry for the late reply. I accomplished my requirements by limiting the internal DHCP scope to the exact number of clients in my internal network. This way, all additional devices that request a 10.0.0.X address are denied by the internal DHCP server and proceed to pull a 192.168.1.X address from the access point. I do agree that VLAN'ing would be the best option. Thanks for the feedback.
     

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