Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am working on an SCCM project that requires powering on computers in the middle of the night to run updates. SCCM can send the WoL packets, but I am struggling to figure out how to pass this across routers. Our core router is a Dell PowerConnect 6248.

I see from the docs that the 62xx switches support forwarding directed broadcast, which seems like a good start. However, having this on globally (which seems to be the only option) exposes us to some attacks. Would the best way of setting this up also include setting up ACLs on the egress interface to only allow UDP port N traffic from host IP to leave the interface? Is there another way of achieving this?

NB - I already looked into IP helper, but this only passes broadcasts from a subnet to a specific IP address, wheras WoL is the other way around.


We want to pass WoL traffic between and, which are separated only by a router.

So the computer sending the WoL packet is, router is and target could be any computer in (specified in each WoL packet).

share|improve this question
up vote 0 down vote accepted

Are you trying to get your WoL packets to cross subnets? Across a VPN, on the same local LAN? Different things could cause different problems, a touch more info would help.

share|improve this answer
Same LAN initially, but will likely meet VPN related issues when we start using SCCM more widely. – dunxd May 9 '11 at 15:18

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.