25 Mar
2019
25 Mar
'19
5:26 a.m.
On Mon, 25 Mar 2019, marcel.duregards--- via NANOG wrote:
As SSDP is used with PnP for local LAN service discovery, we are thinking of:
1) educate our client (take a lot of time) 2) filter incoming SSDP packets (UDP port 1900 at least) in our bgp border
Looking back at logs for VoIP calls over the past week (we are a small B2B telco), I see a fair number of RTP streams originating from UDP port 1900 on the customer side. Such filtering at the provider edge would have caused one way audio on these calls