Incoming SSDP UDP 1900 filtering

Thu Apr 11 19:52:33 UTC 2019


> On Apr 11, 2019, at 10:08, Patrick McEvilly <patrick_mcevilly at harvard.edu> wrote:

> They are refusing to remove the tcp port 1900 filter without dispensation from the DDoS security gods. I understand blocking UDP 1900, what is the purpose of Level3 filtering tcp port 1900?  

Filtering Exploitable Ports and Minimizing Risk from the Internet and from Your Customers - What are you doing to prepare for the next “scanning malware” and “Internet Worm?”

http://www.senki.org/operators-security-toolkit/filtering-exploitable-ports-and-minimizing-risk-to-and-from-your-customers/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.nanog.org/pipermail/nanog/attachments/20190411/e9d54e6a/attachment.html>