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Port 2554 (vcnet-link-v10)

IANA assigns port 2554 to vcnet-link-v10: VCnet-Link v10.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
vcnet-link-v10 TCP VCnet-Link v10 Csaba Mate -
vcnet-link-v10 UDP VCnet-Link v10 Csaba Mate -

Check what is listening on port 2554

Linux: is anything listening on TCP 2554?
sudo ss -tlnp 'sport = :2554'
Linux: UDP 2554
sudo ss -ulnp 'sport = :2554'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2554
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2554 '
Windows (Command Prompt)
netstat -ano | findstr :2554
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2554 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2554
From Windows
Test-NetConnection HOST -Port 2554
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2554

Block port 2554 in the firewall

ufw
sudo ufw deny 2554/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2554 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2554 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2554' -Direction Inbound -Protocol TCP -LocalPort 2554 -Action Block
ufw
sudo ufw deny 2554/udp
iptables
sudo iptables -A INPUT -p udp --dport 2554 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2554 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2554' -Direction Inbound -Protocol UDP -LocalPort 2554 -Action Block

Related ports

2552call-logging2553efidiningport2555compaq-wcp2556nicetec-nmsvc

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.