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Property:DHCP
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Protocol
| Protocol: | DHCP | Wiki | Freetz | IPPF | whmf | AVM | Web |
| Short for: | Dynamic Host Configuration Protocol | ||||||
| Location: | Lexicon >> Network-Protocols | ||||||
| Weblinks: | Wikipedia.int - Wikipedia.de - RFC-2131 | ||||||
| Description: | Automatic configuration of a network interface | ||||||
Goto: FRITZ!OS - SMW-Browser
Details
DHCP is a protocol for automatic configuration of a network interface.
For IPv4 it uses Port-67-udp (server) and Port-68-udp (client).
For IPv6 it uses Port-547-udp (server) and Port-546-udp (client).
DHCP is an extension to the BOOTP protocol and can also be used by BOOTP clients (limited).
It can deliver the following settings to a client:
- IP address
- Netmask
- default Gateway
- DNS servers.
- NTP servers
- WINS server
- WPAD proxy config
- TFTP server for PXE boot of diskless systems
- and more...
FRITZ!OS
In FRITZ!OS DHCP is served by multid (routers) or rextd (repeaters).
Both do not support the full features of DHCP listed above.
The respective server listens on these Network-Bridges:
- lan:
- Default IP: 192.168.178.1 - configurable
- Domainname: fritz.box
- Default leasetime: 864000 sec (10 days)
- Max leasetime: 1123200 sec (13 days)
- Default Lease range: 192.168.178.20 - 192.168.178.200 - configurable
- guest:
- Fixed IP: 192.168.179.1
- Domainname: fritz.box
- Default leasetime: 21600 sec (6 hrs)
- Max leasetime : 21600 sec (6 hrs)
- Fixed Lease range: 192.168.179.2 - 192.168.178.254
This was gathered with IPv6 disabled.
To get a full featured solution dnsmasq could be installed using Freetz.
Upstream DHCP is performed by dsld and its helpers.
On cable models there are the DHCP clients ti_udhcpc (IPv4) and ti_dhcp6c (IPv6).
