ExtremeWireless (WiNG)

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Problems with DHCP Relay on VLANs

  • 1.  Problems with DHCP Relay on VLANs

    Posted 06-15-2018 13:19
    Hi Champs,

    I have a RFS6000 with wing 5.8.3.1 firmware and i'm trying to enable the DHCP RELAY on one of my vlans. But, when a check the box ''Respond to DHCP Relay Packets" and point the IP address on DHCP relay list, i get this error message:

    Detail :Not Available
    Message :Both, dhcp-relay-incoming and ip-helper-address, are configured on interface vlan1
    ErrorPath :/wing-config/device[mac='B4-C7-99-6E-D4-30']
    Severity :error
    Type :Application Error

    why DHCP relay and IP-helper are conflicting? Some configuration are incorrect?


  • 2.  RE: Problems with DHCP Relay on VLANs

    Posted 06-15-2018 13:47
    You need a helper to forward a broadcast DHCP request to a unicast into another subnet/VLAN.
    No need for a helper in the same subnet/VLAN.

    As per the error you try to configure a helper that rx/tx on the same subnet/VLAN.