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ISC DHCP — Common Ports

Community software entries: links are references, not individual verification.

Default Ports (1)

67
udpSystem

DHCPv4 servers use UDP 67 and clients use UDP 68. This is an address-lease protocol, not a website to open in a browser.

Internet Systems Consortium DHCP server

Scope

Port associations on this page are community-database references (common usage), not a live measurement of any machine; confirm with the official documentation before deployment.

Frequently asked questions

What port does ISC DHCP use?

ISC DHCP commonly uses these ports: 67. The default port is 67. These are community database references — actual configuration may differ.

How do I check if ISC DHCP is running?

Run sudo ss -tupn 'sport = :67' on the server to check for listening processes on these ports. Also use systemctl status <service> to check the service state. Without root you may not see other users' processes. A listening port alone does not prove the software identity — verify with the config file and process name.

What category does ISC DHCP belong to?

ISC DHCP belongs to the System category. This page lists the software's port associations and their roles.