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Dhcp Relay on vLan Interface?

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  • 1.  Dhcp Relay on vLan Interface?

    Posted May 23, 2015 11:15 PM

    Hi.

    I am trying to put dhcp relay on a new vlan. Vlan 500, but I dont know what commands to use. I already have seven vlans using it, but someone else configured the router.

    I tried: (Aruba-DataCenter-1) (vlan "500") #ip helper-address 10.1.10.20. 

    And: 

    (Aruba-DataCenter-1 (vlan "500") #dhcp-relay- DHCPRelay1

    But it didnt like that.

    Any help is greatly appreciated.

     

    Here is my show interface for vlan 500 and vlan 400

    (Aruba-DataCenter-1) #show interface-config vlan 500
    vlan "500"
    ----------
    Parameter                   Value
    ---------                   -----
    Interface OSPF profile      N/A
    Interface PIM profile       N/A
    Interface IGMP profile      N/A
    Directed Broadcast Enabled  Disabled
    Interface shutdown          Disabled
    mtu                         1500
    IP Address                  192.168.50.1/255.255.254.0
    IP NAT Inside               Disabled
    IPv6 Address                N/A
    IPv6 link local Address     N/A
    DHCP client                 Disabled
    DHCP relay profile          N/A
    Interface description       N/A

    (Aruba-DataCenter-1) #show interface-config vlan 400

    vlan "400"
    ----------
    Parameter                   Value
    ---------                   -----
    Interface OSPF profile      N/A
    Interface PIM profile       N/A
    Interface IGMP profile      N/A
    Directed Broadcast Enabled  Disabled
    Interface shutdown          Disabled
    mtu                         1500
    IP Address                  192.168.40.1/255.255.254.0
    IP NAT Inside               Disabled
    IPv6 Address                N/A
    IPv6 link local Address     N/A
    DHCP client                 Disabled
    DHCP relay profile          DHCPRelay1
    Interface description       N/A



  • 2.  RE: Dhcp Relay on vLan Interface?

    EMPLOYEE
    Posted May 23, 2015 11:18 PM
    You need to configure a DHCP relay profile and then apply the profile to the interface.


    Thanks,
    Tim


  • 3.  RE: Dhcp Relay on vLan Interface?

    Posted May 24, 2015 10:33 AM

    Hi Tim,

    Thanks for your quick response.

    I have DHCPRelay1, as a DHCP Profile, it is applied to the other Vlans, by a consulting company. But, when I try to apply it to the vlan500 interface, it rejects it. Can you tell me what command should I be using to apply DHCPRelay1 to vlan500? 

    I really appreciate your help. Clearly, training classes are in order, on my end!

     



  • 4.  RE: Dhcp Relay on vLan Interface?
    Best Answer

    EMPLOYEE
    Posted May 24, 2015 10:43 AM
    Interface vlan 500
    Dhcp-relay-profile <PROFILE name="">


    Thanks,
    Tim</PROFILE>


  • 5.  RE: Dhcp Relay on vLan Interface?

    Posted May 24, 2015 01:22 PM

    Tim,

    Thank you so much. Again, you helped me move forward.