Network Services

DHCP and TFTP for desk phones Off

Network services

Desk phones find the provisioning server by themselves when the DHCP server hands out its address (option 66). DHCP and TFTP are switched on separately. With DHCP server off, your own DHCP server stays: set the options listed below there. With it on, AiPBX hands out addresses on one interface or VLAN. TFTP server serves the boot files and firmware you upload. The per-phone configuration (with the SIP password) is always served over HTTPS, never over TFTP.

Services DHCP server · AiPBX hands out addresses on the chosen interface TFTP server · serves the uploaded boot files and firmware; without DHCP here, set the options below on your own DHCP server TFTP has no passwords: anybody on the allowed networks can download every file in the folder — with "Also write the phones' files into the TFTP/FTP folder" on, the phones' files with their SIP passwords too. FTP server (read only) · serves the same files over FTP, for phones that fetch them that way (e.g. NEC DT700) Syslog (phone logs) · phones send their log to this server, from the networks above; Phone logs NTP server (time) · this server gives the time to the phones, from the networks above; enter 10.218.49.190 as their NTP server;

NECSDT700 is the user NEC DT700/DT800 phones log in with. They send the password NECSdt700 unless it was changed in their menu; the password set here must be the same. NEC's default password

New password for NECSDT700

Allow anonymous login without a password · not recommended: anybody on the allowed networks can then download the phones' files, SIP passwords included

Add an FTP user (optional)

FTP password

All FTP users can only read the files below; nothing can be uploaded or changed over FTP. FTP is not encrypted, so keep only files there that anybody on the phone network may see. Port 21 and the passive ports 40000–40049 are opened in the firewall for the allowed networks only. Entering an existing user's name sets a new password.

Interface

A second DHCP server on a network breaks it. Use this only on a network or VLAN where no other DHCP server answers; "Check for DHCP servers" looks for one.

First address

Last address

Netmask

Gateway

DNS servers

NTP servers (option 42) IP addresses, comma separated. Empty: this server when NTP server is on, else the NTP server from the phones' configuration.

Lease time (hours)

Provisioning URL (option 66 and 160)

Extra DHCP options One per line: code,value, e.g. 66,ftp://192.168.10.2/. Bytes are written in hex with colons (43,0a:04:c0:a8:0a:02), other values as text or IP addresses. The same code replaces the value AiPBX hands out (66, 160, 150, 42, 3, 6) and extra options are sent even when the phone does not ask for them. No quotes, # or backslash.

No other DHCP server answers on this network Switch on even if another DHCP server answers

TFTP needs the networks of your phones: fill Allowed networks in the provisioning settings first. Phones

Options for your own DHCP server

When the AiPBX DHCP server is off, set these options on the company's DHCP server (router, Windows Server, …) for the phone network.

Option	Value	For
66	https://demo.aipbx.local/provision/	Yealink, Grandstream, Fanvil, Snom
160	https://demo.aipbx.local/provision/	Poly
150	10.218.49.190	Cisco SPA (TFTP)
42	your NTP server's IP address	all phones

Leases

Devices that got an address from AiPBX. Unknown phones among them are listed as waiting phones on the Phones page.

MAC address	IP address	Host name	Vendor	Expires
No leases yet

TFTP files

Folder on the server: /var/lib/aipbx/tftp — TFTP and FTP serve the same folder.

Files the TFTP server hands out, e.g. boot files or firmware. Configuration files named after a MAC address are refused: they hold the SIP password and are served over HTTPS only.

File	Size
No files

Phone Settings

Network services

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