Forum Discussion

MaryThom_58507's avatar
MaryThom_58507
Icon for Nimbostratus rankNimbostratus
Mar 03, 2011

broadcast/multicast forwarding dilemma

With the utlimate end of providing DHCP relay VS on a v10.2 box, I enabled forwarding of broadcast/multicast on a LTM using this command:

 

b db tm.allowmulticastl2destinationtraffic { enable }

 

 

This interacts poorly with Microsoft Network Load-Balancing (NLB) because that configuration uses multicast for clustering.

 

 

I am wondering if anyone has a good iRule suggestion that would Allow forwarding of DHCP broadcast messages but would Disallow NLB traffic?
application delivery
dev
devops
iRules
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Jan 04, 2012
    LTM now supports DHCP relay in 11.1:

     

     

     

    http://support.f5.com/kb/en-us/products/big-ip_ltm/releasenotes/product/relnote-ltm-11-1-0.htmlrn_new

     

    Dynamic Host Configuration Protocol Relay

     

    In this release, the BIG-IP system introduces the Dynamic Host Configuration Protocol (DHCP) Relay virtual server, providing the ability to proxy DHCP requests between VLANs.

     

     

     

    Aaron