What is SSDP? Should I let programs use it?

[netdragon]

Microsoft Programs are trying to connect to my firewall, also the gateway, using SSDP? What is SSDP?

File Version : 4.7.2009
File Description : Messenger
File Path : C:\Programs\Accessories\Messenger\msmsgs.exe
Process ID : CE0 (Heximal) 3296 (Decimal)

Connection origin : local initiated
Protocol : UDP
Local Address : 192.168.0.3
Local Port : 65077
Remote Name :
Remote Address : 192.168.0.254
Remote Port : 1900 (SSDP - Simple Service Discovery Protocol)

Ethernet packet details:
Ethernet II (Packet Length: 174)
Destination: 00-30-bd-05-52-e5
Source: 00-10-a4-8e-70-c1
Type: IP (0x0800)
Internet Protocol
Version: 4
Header Length: 20 bytes
Flags:
.0.. = Don't fragment: Not set
..0. = More fragments: Not set
Fragment offset:0
Time to live: 1
Protocol: 0x11 (UDP - User Datagram Protocol)
Header checksum: 0x1d21 (Correct)
Source: 192.168.0.3
Destination: 192.168.0.254
User Datagram Protocol
Source port: 65077
Destination port: 1900
Length: 8
Checksum: 0x3612 (Correct)

[Jack]

SSDP is a protocol to discover Universal Plug-and-Play devices on a network. Windows Messenger uses SSDP to determine if there is an upstream Internet gateway device. This is automatic, and even if you turn off SSDP, you'll still get the traffic.



Jack

[alanjstr]

Unless you need it, you should disable UPnP anyways. One of the first holes in XP was due to that.

[Micha the not so Old]

If you have ever wondered whats trying to get in or out of your windows computer, this should give you an idea:

http://www.pcmag.com/article2/0,4149,640479,00.asp

I have printed off a copy so I can do a quick check as needed.

[old Harry Waldron]

Thanks for sharing guys ... I learned some good stuff here