Technical data

4. Packages

Default Setting: DHCP_CLIENT_x_ROUTE=’default’

DHCP_CLIENT_x_USEPEERDNS If this variable is set to ’yes’ and the device has a default-

route assigned, then the ISP’s DNS server is used as a DNS forwarder on this route. Make

sure to activate DNS forwarding - see base.txt.

Default Setting: DHCP_CLIENT_x_USEPEERDNS=’no’

DHCP_CLIENT_x_HOSTNAME Some ISPs require a hostname to be forwarded. Ask your

ISP for this and list it here. It does not have to be identical to the router hostname.

Default Setting: DHCP_CLIENT_x_HOSTNAME=”

DHCP_CLIENT_x_STARTDELAY This variable can optionally delay the start of the DHCP

client. In some installations (eg ﬂi4l as a dhcp client behind a cable modem, Fritzbox,

a.s.o.) it is necessary to wait until the DHCP server in use is also started anew (if for

example a power failure has happened).

Default Setting: DHCP_CLIENT_x_STARTDELAY=’0’

DHCP_CLIENT_x_WAIT The DHCP client normally gets started as a background task.

This means that the boot process is not delayed by the determination of the IPv4 address.

Occasionally, however, it is necessary that the address is conﬁgured before the boot

process progresses. This is the case when an installed package necessarily requires a

conﬁgured address (eg in OPT_IGMP). Use DHCP_CLIENT_x_WAIT='yes' to force ﬂi4l

to wait for an address.

Default Setting: DHCP_CLIENT_x_WAIT=’no’

DHCP_CLIENT_DEBUG Shows more informations during optainment of an address.

Default Setting: omit it or DHCP_CLIENT_DEBUG=’no’

4.5. DNS_DHCP - Hostnames, DNS- and DHCP-Server as well as

DHCP-Relay

4.5.1. Hostnames

Hosts

OPT_HOSTS The conﬁguration of hostnames can be disabled by means of the optional

variable OPT_HOSTS!

HOST_N HOST_x_{attribute} All hosts in the LAN should be described - with IP-address,

name, aliasname and perhaps Mac-address for the dhcp-conﬁguration. At ﬁrst we have

to set the number of computers with the variable HOST_N.

Note: Since version 3.4.0, the entry for the router comes from the information in the

config /base.txt. For additional aliasnames, see HOSTNAME_ALIAS_N (Page 69).

Then the attributes deﬁne the properties of the hosts. Here are some of the attributes

required, e.g. IP address and name, the other options are optional.

NAME – Name of the n’th host