Port 2645 (novell-ipx-cmd)

IANA assigns port 2645 to novell-ipx-cmd: Novell IPX CMD.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

novell-ipx-cmd TCP Novell IPX CMD Juan Carlos Luciani -

novell-ipx-cmd UDP Novell IPX CMD Juan Carlos Luciani -

Linux: is anything listening on TCP 2645?

sudo ss -tlnp 'sport = :2645'

Linux: UDP 2645

sudo ss -ulnp 'sport = :2645'

Linux / macOS: which process owns the port

sudo lsof -nP -i :2645

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':2645 '

Windows (Command Prompt)

netstat -ano | findstr :2645

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2645 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 2645

From Windows

Test-NetConnection HOST -Port 2645

UDP probe (no reply does not prove it is closed)

nc -vzu -w 5 HOST 2645

ufw

sudo ufw deny 2645/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 2645 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 2645 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 2645' -Direction Inbound -Protocol TCP -LocalPort 2645 -Action Block

ufw

sudo ufw deny 2645/udp

iptables

sudo iptables -A INPUT -p udp --dport 2645 -j DROP

nftables

sudo nft add rule inet filter input udp dport 2645 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 2645' -Direction Inbound -Protocol UDP -LocalPort 2645 -Action Block

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