How to stop srw/EMS shipment 239.255.255.250.1900: UDP

SRW / EMS switches are sending packages as below:

IP 172.16.57.100.1900 > 239.255.255.250.1900: UDP, length 296
IP 172.16.57.100.1900 > 239.255.255.250.1900: UDP, length 313

(a message from discovery to the multicast address 239.255.255.250 port 1900 via the UDP protocol)

This behavior can be disabled?

It seems that this is for uPnP.

This is normally come from a windows machine, you're sure it's the switch?

For the switch, here's a guide to the administrator:

http://www.Cisco.com/en/us/docs/switches/LAN/CSBMs/srw248g4p/Administration/Guide/SRW224G4P-248G4P_User_Guide.PDF

Here is the specific platform, however you need basically disable upnp if it's an inconvenience for you.  It is harmless for the switch to send however if you just want to ignore it.

HTH,

Andrew Lissitz

Tags: Cisco Support

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