Wired Intelligent Edge

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  • 1.  DHCP SNOOPING mit DHCP Relay

    Posted Nov 21, 2016 10:28 AM

    Szenario:

    DHCP Relays on the router in the Core-Network for multiple VLANs and I want to use DHCP-Snooping at the Access-Layer with the ArubaOS-Switch 2530-Series. (DHCP-Server is running on VM)

    For DHCP-Snooping i have to configure "dhcp-snooping authorized-server". For example the DHCP-Server.

    Did i have to set the interface-adresses from the VLANs with DHCP-Relays as "dhcp-snooping authorized-server" ,too?

    Cause i mean DHCP-Snooping acts at Layer 2.

    Thanks 4 answers. 

     


    #DHCP


  • 2.  RE: DHCP SNOOPING mit DHCP Relay

    Posted Nov 21, 2016 08:25 PM

    I had Procurve edge switches and a 3COM core - I had to add in the 3COM cores as authorised DHCP servers.



  • 3.  RE: DHCP SNOOPING mit DHCP Relay

    Posted Nov 22, 2016 03:38 AM

    The Core is a 3COM, too. So i have to add all vlan interfaces from the core? 

    Would be great if you  could add the DHCP-Servers only... :/



  • 4.  RE: DHCP SNOOPING mit DHCP Relay

    Posted Nov 22, 2016 06:51 PM

    A 3COM core switch *is* a DHCP server.

    Unlike other vendors, it doesn't just proxy the DHCP requests through, it actually acts as a DHCP server itself.

    You shouldn't have too much work to do - your Access switches only need the VLAN interfaces for their local Data and Voice VLANs - should only be two there to do, right?



  • 5.  RE: DHCP SNOOPING mit DHCP Relay

    Posted Nov 23, 2016 02:57 AM

    There will be some more Interfaces to add, cause we use 802.1x with RADIUS to set the VLAN on the access port. 

    The work isnt a problem. I just want to understand the configuration :) 

    Thanks 4 your reply.