# WHATPORT(1067)

## NAME

port 1067 — Installation Bootstrap Protocol Server (instl_boots) — A BOOTP server on a private port pair — HP's Ignite-UX uses it to net-boot HP-UX installs without colliding with DHCP.

Protocol: TCP/UDP  
IANA registry

## DESCRIPTION

IANA registers 1067 as `instl-boots` (formerly `instl_boots`), the Installation Bootstrap Protocol server port. Its best-documented user is HP's Ignite-UX, whose `instl_bootd` daemon speaks BOOTP on 1067/1068 instead of the standard 67/68 precisely so that installing an HP-UX client does not draw answers from the site's regular DHCP servers — only instl_bootd listens on those ports, so only instl_bootd replies. Ignite-UX server setup asks that 1067, 1068, tftp/69 and bootps/67-68 all be free and reachable. Real traffic here is UDP; the TCP registration exists but is not what you see on the wire.

## EXPOSURE

**Do not expose.** An unauthenticated bootstrap service that hands a machine its operating system image — provisioning VLAN only, never routed to anything untrusted.

## CHECK

```sh
sudo tcpdump -ni any udp port 1067 or udp port 1068
```

## SEE ALSO

- docs — [HP Ignite-UX Administration Guide (HP-UX 10.x, 11.0, 11i)](https://www.bitsavers.org/pdf/hp/9000_hpux/1991-200x/200303_B2355-90772_Ignite-UX_Administration_Guide_HP_Computers_with_HP-UX_10.x_11.0_or_11i_Ed10.pdf) (bitsavers.org)
- spec — [RFC 951 — Bootstrap Protocol (BOOTP)](https://www.rfc-editor.org/rfc/rfc951.html) (rfc-editor.org)
- iana — [IANA Service Name and Transport Protocol Port Number Registry](https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml) (iana.org)

---

HTML: <https://whatport.net/1067/> · JSON: <https://whatport.net/1067.json> · full dataset: <https://whatport.net/ports.json>