Re: Cisco Crosswork Network Insights - or how to destroy a useful service

l service Resent-From: Patrick McEvilly Cisco ruins everything they touch. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com From: "Hank Nussbacher" To: nanog@nanog.org Sent: Wednesday, May 15, 2019 4:50:10 AM Subj

Re: Incoming SSDP UDP 1900 filtering

I'm working with Level3 on a similar problem. They filter both UDP and TCP port 1900 on our peer to them. This is blocking all connections that randomly use ephemeral tcp port 1900. They are refusing to remove the tcp port 1900 filter without dispensation from the DDoS security gods. I un