[Sderby] Power over Ethernet

Colin Lenton colin at lentonc25.fsnet.co.uk
Sat Jan 15 16:16:09 GMT 2005


Could I be taken off the mailing list, please?

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.
>
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