ExtremeSwitching (EXOS)

  • 1.  DHCP Snooping and DHCP Relay

    Posted 01-07-2014 22:03
    Create Date: Jun 21 2013 10:59AM

    Hi

    I want to implement DHCP snooping.

    My network topology is quite simple, core switch with multiple edge switches.

    I am already using bootprelay on the core switch to forward dhcp request from several vlans to the one with the dhcp server.

    i would now like to enable dhcp-snooping to prevent unauthorized dhcp servers appearing on the network.

    i enabled dhcp snooping for one vlan but it quickly blocked the edge switch because of the bootp relay requests.

    can i just add the core switch as a trusted dhcp server as well as the actual dhcp server, or should i be looking at trusting the uplink port on the edge switch. I think trusting the uplink port would be silly though because i am effectively (on that switch) trusting dhcp servers on any other switch .

    Please correct me if i'm wrong, i would like to hear your suggestions

    conrad
    (from Conrad_Jones)


  • 2.  RE: DHCP Snooping and DHCP Relay

    Posted 01-07-2014 22:03
    Create Date: Jun 22 2013 12:45PM

    adding the core switch (the dhcp relay) as a trusted dhcp server worked. (from Conrad_Jones)