Constant Ping From Domain Controller

I help administer a small network with 3 windows 2003 domain controllers,
each in a different subnet connected by T1 frame relay. The problem I am
seeing is there is a constant ping from the Master Domain controller in the
main office too the other domain controllers in the two remote offices. I
have gone through the task manager and cannot locate what may be the source
of these pings. Does anyone know if this is part of the 2003 active directory
sync or keepalive? The pings have me worried there may be something on the
server.

Any help or direction provided will be greatly appreciated.

Miha
Fri May 19 11:45:14 CDT 2006

Hi,

This is by design. ICMP (ping) is legitimate protocol. In this case it is
used to determine if other DCs are up and running. It is also used to
determine link speed etc. If you close ICMP traffic between two DCs
replication of group policies will fail. There are also known problems with
you close ICMP between client and DC.

--
Mike
Microsoft MVP - Windows Security


"Rokz" <Rokz@discussions.microsoft.com> wrote in message
news:AFC8E4E9-D4E7-4D8A-94FA-72EC68D224F0@microsoft.com...
>I help administer a small network with 3 windows 2003 domain controllers,
> each in a different subnet connected by T1 frame relay. The problem I am
> seeing is there is a constant ping from the Master Domain controller in
> the
> main office too the other domain controllers in the two remote offices. I
> have gone through the task manager and cannot locate what may be the
> source
> of these pings. Does anyone know if this is part of the 2003 active
> directory
> sync or keepalive? The pings have me worried there may be something on the
> server.
>
> Any help or direction provided will be greatly appreciated.