[Sderby] Power over Ethernet

[Luke Dolman]

Mike Hemstock wrote:
> Folks,
> 
> I'm having trouble getting PoE to work through a firewall.  The device
> will not power up using PoE.  If I put a adapter directly into it I can
> see data traveling through the firewall, but not power.  I have ran
> tcpdump and there appears to be no power getting through.  I assume there
> must be a way to create rules to allow power through the firewall, but I
> have grepped the iptables man page and searched on google and can't find
> anything.  I tried doing iptables -F to flush the rules and allow anything
> through, but the firewall is still not passing power.  Does anyone know if
> there are any specific rules to enable power through iptables for Power
> over Ethernet enabled devices?  I assume Power over Ethernet travels via
> UDP?  Does anyone know what port its on?
> 
> Mike.
> 

Slightly in same the vein, I've also been struggling with a POE problem 
of my own - I'm having trouble booting POE devices over a wireless 
link.Fortunately for me this is a public access network so I've no 
firewalls to deal with at this time, nevertheless I do seem to be 
struggling to get any devices to work. I've tried a multitude of 
different vendor hardware and find it nigh on impossible to believe that 
all the equipment I have is faulty.Anyone else encountered this problem 
before?
Also, does anyone know the maximum supported devices for POE on a wlan ?

Cheers,

Luke