Port 153633Link Negotiation
Port assigned for 3Link Negotiation over TCP and UDP.
- transport
- tcp · udp
- in transit
- cleartext
- assignment
- official
- risk
- 1/10
- lookups
- 0
2 transports registered
payload readable on path
registered with iana
safe
rank 993 of 4,499 · top 22%
Technical Details
what runs on :153633Link Negotiation is registered on port :15363 over tcp and udp to Brant Thomsen, assigned January 2003. We don't have a technical write-up for it beyond the IANA registry entry.
In nmap's internet-wide scan data this port is found open rarely. What's listening is often not the registered service, so check before you assume.
find what's listening on :15363
# linux
sudo ss -tulpn 'sport = :15363'
# macos / bsd
sudo lsof -nP -i :15363
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :15363nmap -sV -p T:15363 <host>
sudo nmap -sU -sV -p U:15363 <host>run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.
add technical detailsSecurity Information
exposure of :15363risk score
1/ 10safe
routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.
in transit
cleartext
credentials and payloads are readable by anyone on path
assignment
official
registered with iana for this service — scanners fingerprint it by number
reachable over
tcp · udp
udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite
security overview
no security notes recorded for :15363 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
ports registered around :15363, by lookups.
| port | service | risk | |||
|---|---|---|---|---|---|
| :15345 | XPilot Contact | TCPUDP | Gaming | caution | 7.3k |
risk mix of the 1 listed
- caution100%
0 of 1 encrypted