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Port 1167 (cisco-ipsla)

IANA assigns port 1167 to cisco-ipsla: Cisco IP SLAs Control Protocol.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
cisco-ipsla TCP Cisco IP SLAs Control Protocol Emmanuel Tychon -
cisco-ipsla UDP Cisco IP SLAs Control Protocol Emmanuel Tychon -
cisco-ipsla SCTP Cisco IP SLAs Control Protocol Emmanuel Tychon -

Registry dates for this port: registered 2006-03.

Check what is listening on port 1167

Linux: is anything listening on TCP 1167?
sudo ss -tlnp 'sport = :1167'
Linux: UDP 1167
sudo ss -ulnp 'sport = :1167'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1167
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1167 '
Windows (Command Prompt)
netstat -ano | findstr :1167
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1167 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1167
From Windows
Test-NetConnection HOST -Port 1167
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1167

Block port 1167 in the firewall

ufw
sudo ufw deny 1167/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1167 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1167 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1167' -Direction Inbound -Protocol TCP -LocalPort 1167 -Action Block
ufw
sudo ufw deny 1167/udp
iptables
sudo iptables -A INPUT -p udp --dport 1167 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1167 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1167' -Direction Inbound -Protocol UDP -LocalPort 1167 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.