677 lines
22 KiB
Diff
677 lines
22 KiB
Diff
diff -up dhcp-4.1.1/client/dhclient.8.man dhcp-4.1.1/client/dhclient.8
|
|
--- dhcp-4.1.1/client/dhclient.8.man 2009-07-25 00:04:51.000000000 +0200
|
|
+++ dhcp-4.1.1/client/dhclient.8 2010-02-25 17:41:36.000000000 +0100
|
|
@@ -111,6 +111,33 @@ relay
|
|
.B -w
|
|
]
|
|
[
|
|
+.B -B
|
|
+]
|
|
+[
|
|
+.B -I
|
|
+.I dhcp-client-identifier
|
|
+]
|
|
+[
|
|
+.B -H
|
|
+.I host-name
|
|
+]
|
|
+[
|
|
+.B -F
|
|
+.I fqdn.fqdn
|
|
+]
|
|
+[
|
|
+.B -V
|
|
+.I vendor-class-identifier
|
|
+]
|
|
+[
|
|
+.B -R
|
|
+.I request-option-list
|
|
+]
|
|
+[
|
|
+.B -timeout
|
|
+.I timeout
|
|
+]
|
|
+[
|
|
.B -v
|
|
]
|
|
[
|
|
@@ -138,32 +165,6 @@ important details about the network to w
|
|
the location of a default router, the location of a name server, and
|
|
so on.
|
|
.PP
|
|
-If given the -4 command line argument (default), dhclient will use the
|
|
-DHCPv4 protocol to obtain an IPv4 address and configuration parameters.
|
|
-.PP
|
|
-If given the -6 command line argument, dhclient will use the DHCPv6
|
|
-protocol to obtain whatever IPv6 addresses are available along with
|
|
-configuration parameters. But with
|
|
-.B -S
|
|
-it uses Information-request to get only (i.e., without address)
|
|
-stateless configuration parameters.
|
|
-.PP
|
|
-The default DHCPv6 behavior is modified too with
|
|
-.B -T
|
|
-which asks for IPv6 temporary addresses, one set per
|
|
-.B -T
|
|
-flag.
|
|
-.B -P
|
|
-enables the IPv6 prefix delegation.
|
|
-As temporary addresses or prefix delegation disables the normal
|
|
-address query,
|
|
-.B -N
|
|
-restores it. Note it is not recommended to mix queries of different types
|
|
-together, or even to share the lease file between them.
|
|
-.PP
|
|
-If given the --version command line argument, dhclient will print its
|
|
-version number and exit.
|
|
-.PP
|
|
On startup, dhclient reads the
|
|
.IR dhclient.conf
|
|
for configuration instructions. It then gets a list of all the
|
|
@@ -217,141 +218,259 @@ file. If interfaces are specified in t
|
|
only configure interfaces that are either specified in the
|
|
configuration file or on the command line, and will ignore all other
|
|
interfaces.
|
|
-.PP
|
|
-If the DHCP client should listen and transmit on a port other than the
|
|
-standard (port 68), the
|
|
-.B -p
|
|
-flag may used. It should be followed by the udp port number that
|
|
-dhclient should use. This is mostly useful for debugging purposes.
|
|
-If a different port is specified for the client to listen on and
|
|
-transmit on, the client will also use a different destination port -
|
|
-one less than the specified port.
|
|
-.PP
|
|
-The DHCP client normally transmits any protocol messages it sends
|
|
-before acquiring an IP address to, 255.255.255.255, the IP limited
|
|
-broadcast address. For debugging purposes, it may be useful to have
|
|
-the server transmit these messages to some other address. This can
|
|
-be specified with the
|
|
-.B -s
|
|
-flag, followed by the IP address or domain name of the destination.
|
|
-This feature is not supported by DHCPv6.
|
|
-.PP
|
|
-For testing purposes, the giaddr field of all packets that the client
|
|
-sends can be set using the
|
|
-.B -g
|
|
-flag, followed by the IP address to send. This is only useful for testing,
|
|
-and should not be expected to work in any consistent or useful way.
|
|
-.PP
|
|
-The DHCP client will normally run in the foreground until it has
|
|
-configured an interface, and then will revert to running in the
|
|
-background. To run force dhclient to always run as a foreground
|
|
-process, the
|
|
-.B -d
|
|
-flag should be specified. This is useful when running the client
|
|
-under a debugger, or when running it out of inittab on System V
|
|
-systems.
|
|
-.PP
|
|
-The dhclient daemon creates its own environment when executing the
|
|
-dhclient-script to do the grunt work of interface configuration.
|
|
-To define extra environment variables and their values, use the
|
|
-.B -e
|
|
-flag, followed by the environment variable name and value assignment,
|
|
-just as one would assign a variable in a shell. Eg:
|
|
-.B -e
|
|
-.I IF_METRIC=1
|
|
-.PP
|
|
-The client normally prints no output during its startup sequence. It
|
|
-can be made to emit verbose messages displaying the startup sequence events
|
|
-until it has acquired an address by supplying the
|
|
-.B -v
|
|
-command line argument. In either case, the client logs messages using
|
|
-the
|
|
-.B syslog (3)
|
|
-facility. A
|
|
-.B -q
|
|
-command line argument is provided for backwards compatibility, but since
|
|
-dhclient is quiet by default, it has no effect.
|
|
-.PP
|
|
-The client normally doesn't release the current lease as it is not
|
|
-required by the DHCP protocol. Some cable ISPs require their clients
|
|
-to notify the server if they wish to release an assigned IP address.
|
|
-The
|
|
-.B -r
|
|
-flag explicitly releases the current lease, and once the lease has been
|
|
-released, the client exits.
|
|
-.PP
|
|
+.SH OPTIONS
|
|
+.TP
|
|
+.BI \-4
|
|
+Use the DHCPv4 protocol to obtain an IPv4 address and configuration
|
|
+parameters (default).
|
|
+
|
|
+.TP
|
|
+.BI \-6
|
|
+Use the DHCPv6 protocol to obtain whatever IPv6 addresses are available
|
|
+along with configuration parameters. The functionality of DHCPv6 mode
|
|
+may be modified with the
|
|
+.BI \-S
|
|
+,
|
|
+.BI \-T
|
|
+, and
|
|
+.BI \-N
|
|
+options.
|
|
+
|
|
+.TP
|
|
+.BI \-S
|
|
+Perform an information-only request over DHCPv6 to get stateless
|
|
+configuration parameters. It is not recommended to combine this option
|
|
+with the
|
|
+.BI \-N
|
|
+,
|
|
+.BI \-P
|
|
+, or
|
|
+.BI \-T
|
|
+options or to share lease files between different modes of operation. Only
|
|
+valid with the
|
|
+.BI \-6
|
|
+option.
|
|
+
|
|
+.TP
|
|
+.BI \-N
|
|
+Perform a normal (IA_NA) address query over DHCPv6. It is not recommended
|
|
+to combine this option with the
|
|
+.BI \-P
|
|
+,
|
|
+.BI \-S
|
|
+, or
|
|
+.BI \-T
|
|
+options or to share lease files between different modes of operation. Only
|
|
+valid with the
|
|
+.BI \-6
|
|
+option.
|
|
+
|
|
+.TP
|
|
+.BI \-T
|
|
+Perform a temporary (IA_TA) address query over DHCPv6 (disables normal address
|
|
+query). It is not recommended to combine this option with the
|
|
+.BI \-N
|
|
+,
|
|
+.BI \-P
|
|
+, or
|
|
+.BI \-S
|
|
+options or to share lease files between different modes of operation. Only
|
|
+valid with the
|
|
+.BI \-6
|
|
+option.
|
|
+
|
|
+.TP
|
|
+.BI \-P
|
|
+Enable IPv6 prefix delegation (disables normal address query). It is not
|
|
+not recommended to combine this option with the
|
|
+.BI \-N
|
|
+,
|
|
+.BI \-S
|
|
+, or
|
|
+.BI \-T
|
|
+options or to share lease files between different modes of operation. Only
|
|
+valid with the
|
|
+.BI \-6
|
|
+option.
|
|
+
|
|
+.TP
|
|
+.BI \-p\ <port\ number>
|
|
+The UDP port number the DHCP client should listen and transmit on. If
|
|
+unspecified,
|
|
+.B dhclient
|
|
+uses the default port 68. This option is mostly useful for debugging
|
|
+purposes. If a different port is specified for the client to listen and
|
|
+transmit on, the client will also use a different destination port - one
|
|
+less than the specified port.
|
|
+
|
|
+.TP
|
|
+.BI \-d
|
|
+Force
|
|
+.B dhclient
|
|
+to run as a foreground process. This is useful when running the client
|
|
+under a debugger, or when running it out of inittab on System V systems.
|
|
+
|
|
+.TP
|
|
+.BI \-e\ VAR=value
|
|
+Define additional environment variables for the environment where
|
|
+dhclient-script executes. You may specify multiplate
|
|
+.B \-e
|
|
+options on the command line. For example:
|
|
+.B \-e IF_METRIC=1
|
|
+
|
|
+.TP
|
|
+.BI \-q
|
|
+Suppress all terminal and log output except error messages.
|
|
+
|
|
+.TP
|
|
+.BI \-1
|
|
+Try once to get a lease. One failure, exit with code 2.
|
|
+
|
|
+.TP
|
|
+.BI \-r
|
|
+Tell
|
|
+.B dhclient
|
|
+to release the current lease it has from the server. This is not required
|
|
+by the DHCP protocol, but some ISPs require their clients to notify the
|
|
+server if they wish to release an assigned IP address.
|
|
+
|
|
+.TP
|
|
+.BI \-lf\ <lease-file>
|
|
+Path to the lease database file. If unspecified, the default
|
|
+.B DBDIR/dhclient.leases
|
|
+is used.
|
|
+
|
|
+.TP
|
|
+.BI \-pf\ <pid-file>
|
|
+Path to the process ID file. If unspecified, the default
|
|
+.B RUNDIR/dhclient.pid
|
|
+is used.
|
|
+
|
|
+.TP
|
|
+.BI \-cf\ <config-file>
|
|
+Path to the client configuration file. If unspecified, the default
|
|
+.B ETCDIR/dhclient.conf
|
|
+is used.
|
|
+
|
|
+.TP
|
|
+.BI \-sf\ <script-file>
|
|
+Path to the network configuration script invoked by
|
|
+.B dhclient
|
|
+when it gets a lease. If unspecified, the default
|
|
+.B CLIENTBINDIR/dhclient-script
|
|
+is used.
|
|
+
|
|
+.TP
|
|
+.BI \-s\ <server>
|
|
+Specifiy the server IP address or fully qualified domain name to transmit
|
|
+DHCP protocol messages to. Normally,
|
|
+.B dhclient
|
|
+transmits these messages to 255.255.255.255 (the IP limited broadcast
|
|
+address). Overriding this is mostly useful for debugging purposes.
|
|
+
|
|
+.TP
|
|
+.BI \-g\ <relay>
|
|
+Only for debugging. Set the giaddr field of all packets the client
|
|
+sends to the IP address specified. This should not be expected to work
|
|
+in any consistent or useful way.
|
|
+
|
|
+.TP
|
|
+.BI \-n
|
|
+Do not configure any interfaces. Most useful combined with the
|
|
+.B -w
|
|
+option.
|
|
+
|
|
+.TP
|
|
+.BI \-nw
|
|
+Become a daemon process immediately (nowait) rather than waiting until an IP
|
|
+address has been acquired.
|
|
+
|
|
+.TP
|
|
+.BI \-w
|
|
+Keep running even if no network interfaces are found. The
|
|
+.B omshell
|
|
+program can be used to notify the client when a network interface has been
|
|
+added or removed so it can attempt to configure an IP address on that
|
|
+interface.
|
|
+
|
|
+.TP
|
|
+.BI \-B
|
|
+Set the BOOTP broadcast flag in request packets so servers will always
|
|
+broadcast replies.
|
|
+
|
|
+.TP
|
|
+.BI \-I\ <dhcp-client-identifier>
|
|
+Specify the dhcp-client-identifier option to send to the DHCP server.
|
|
+
|
|
+.TP
|
|
+.BI \-H\ <host-name>
|
|
+Specify the host-name option to send to the DHCP server. The host-name
|
|
+string only contains the client's hostname prefix, to which the server will
|
|
+append the ddns-domainname or domain-name options, if any, to derive the
|
|
+fully qualified domain name of the client. The
|
|
+.B -H
|
|
+option cannot be used with the
|
|
+.B -F
|
|
+option.
|
|
+
|
|
+.TP
|
|
+.BI \-F\ <fqdn.fqdn>
|
|
+Specify the fqdn.fqdn option to send to the DHCP server. This option cannot
|
|
+be used with the
|
|
+.B -H
|
|
+option. The fqdn.fqdn option must specify the complete domain name of the
|
|
+client host, which the server may use for dynamic DNS updates.
|
|
+
|
|
+.TP
|
|
+.BI \-V\ <vendor-class-identifier>
|
|
+Specify the vendor-class-identifier option to send to the DHCP server.
|
|
+
|
|
+.TP
|
|
+.BI \-R\ <option>[,<option>...]
|
|
+Specify the list of options the client is to request from the server. The
|
|
+option list must be a single string consisting of option names separated
|
|
+by at least one command and optional space characters. The default option
|
|
+list is:
|
|
+
|
|
+.BR
|
|
+ subnet-mask, broadcast-address, time-offset, routers,
|
|
+.BR
|
|
+ domain-name, domain-name-servers, host-name,
|
|
+.BR
|
|
+ nis-domain, nis-servers, ntp-servers, interface-mtu
|
|
+
|
|
The
|
|
-.B -x
|
|
-flag tells any currently running client to exit gracefully without
|
|
-releasing leases first.
|
|
+.B -R
|
|
+option does not append options to the default request, it overrides the
|
|
+default request list. Keep this in mind if you want to request an
|
|
+additional option besides the default request list. You will have to
|
|
+specify all option names for the
|
|
+.B -R
|
|
+parameter.
|
|
+
|
|
+.TP
|
|
+.BI \-timeout\ <timeout>
|
|
+Specify the time after which
|
|
+.B dhclient
|
|
+will decide that no DHCP servers can be contacted when no responses have been
|
|
+received.
|
|
+
|
|
+.TP
|
|
+.BI \-v
|
|
+Enable verbose log messages.
|
|
+
|
|
.PP
|
|
-If the client is killed by a signal (for example at shutdown or reboot)
|
|
-it won't execute the
|
|
+If the client is killed by a signale (for example at shutdown or reboot), it
|
|
+will not execute the
|
|
.B dhclient-script (8)
|
|
-at exit. However if you shut the client down gracefully with
|
|
-.B -r
|
|
+at exit. However, if you shut the client down gracefully with
|
|
+.BI \-r
|
|
or
|
|
-.B -x
|
|
+.BI \-x
|
|
it will execute
|
|
.B dhclient-script (8)
|
|
-at shutdown with the specific reason for calling the script set.
|
|
-.PP
|
|
-The
|
|
-.B -1
|
|
-flag will cause dhclient to try once to get a lease. If it fails, dhclient
|
|
-exits with exit code two. In DHCPv6 the
|
|
-.B -1
|
|
-flag sets the max duration of the initial exchange to
|
|
-.I timeout
|
|
-(from
|
|
-.IR dhclient.conf ,
|
|
-default sixty seconds).
|
|
-.PP
|
|
-The DHCP client normally gets its configuration information from
|
|
-.B ETCDIR/dhclient.conf,
|
|
-its lease database from
|
|
-.B DBDIR/dhclient.leases,
|
|
-stores its process ID in a file called
|
|
-.B RUNDIR/dhclient.pid,
|
|
-and configures the network interface using
|
|
-.B CLIENTBINDIR/dhclient-script
|
|
-To specify different names and/or locations for these files, use the
|
|
-.B -cf,
|
|
-.B -lf,
|
|
-.B -pf
|
|
-and
|
|
-.B -sf
|
|
-flags, respectively, followed by the name of the file. This can be
|
|
-particularly useful if, for example,
|
|
-.B DBDIR
|
|
-or
|
|
-.B RUNDIR
|
|
-has not yet been mounted when the DHCP client is started.
|
|
-.PP
|
|
-The DHCP client normally exits if it isn't able to identify any
|
|
-network interfaces to configure. On laptop computers and other
|
|
-computers with hot-swappable I/O buses, it is possible that a
|
|
-broadcast interface may be added after system startup. The
|
|
-.B -w
|
|
-flag can be used to cause the client not to exit when it doesn't find
|
|
-any such interfaces. The
|
|
-.B omshell (1)
|
|
-program can then be used to notify the client when a network interface
|
|
-has been added or removed, so that the client can attempt to configure an IP
|
|
-address on that interface.
|
|
-.PP
|
|
-The DHCP client can be directed not to attempt to configure any interfaces
|
|
-using the
|
|
-.B -n
|
|
-flag. This is most likely to be useful in combination with the
|
|
-.B -w
|
|
-flag.
|
|
-.PP
|
|
-The client can also be instructed to become a daemon immediately, rather
|
|
-than waiting until it has acquired an IP address. This can be done by
|
|
-supplying the
|
|
-.B -nw
|
|
-flag.
|
|
+at shutdown with the specific reason for calling the script set in the
|
|
+environment table.
|
|
.SH CONFIGURATION
|
|
The syntax of the dhclient.conf(5) file is discussed separately.
|
|
.SH OMAPI
|
|
diff -up dhcp-4.1.1/client/dhclient.conf.5.man dhcp-4.1.1/client/dhclient.conf.5
|
|
--- dhcp-4.1.1/client/dhclient.conf.5.man 2009-07-23 21:02:09.000000000 +0200
|
|
+++ dhcp-4.1.1/client/dhclient.conf.5 2010-02-25 17:43:16.000000000 +0100
|
|
@@ -184,11 +184,12 @@ are called \fIDHCP Options\fR. DHCP Opt
|
|
The request statement causes the client to request that any server
|
|
responding to the client send the client its values for the specified
|
|
options. Only the option names should be specified in the request
|
|
-statement - not option parameters. By default, the DHCP server
|
|
+statement - not option parameters. By default, the DHCPv4 client
|
|
requests the subnet-mask, broadcast-address, time-offset, routers,
|
|
-domain-name, domain-name-servers and host-name options. Note that if
|
|
-you enter a 'request' statement, you over-ride this default and these
|
|
-options will not be requested.
|
|
+domain-name, domain-search, domain-name-servers, host-name, nis-domain, nis-servers,
|
|
+ntp-servers and interface-mtu options. The DHCPv6 client requests by default
|
|
+name-servers and domain-search. Note that if you enter a 'request' statement,
|
|
+you over-ride this default and these options will not be requested.
|
|
.PP
|
|
In some cases, it may be desirable to send no parameter request list
|
|
at all. To do this, simply write the request statement but specify
|
|
@@ -234,22 +235,11 @@ The send statement causes the client to
|
|
the server with the specified values. These are full option
|
|
declarations as described in \fBdhcp-options(5)\fR. Options that are
|
|
always sent in the DHCP protocol should not be specified here, except
|
|
-that the client can specify a \fBrequested-lease-time\fR option other
|
|
+that the client can specify a requested \fBdhcp-lease-time\fR option other
|
|
than the default requested lease time, which is two hours. The other
|
|
obvious use for this statement is to send information to the server
|
|
that will allow it to differentiate between this client and other
|
|
clients or kinds of clients.
|
|
-.SH DHCPV6 OPERATION
|
|
-The client does not yet have a default DHCPv6 Option Request Option (ORO),
|
|
-nor has it been integrated with the 'request' and 'require' syntax above.
|
|
-It is neccessary to configure an ORO then.
|
|
-.PP
|
|
-.nf
|
|
- send dhcp6.oro 1, 2, 7, 12, 13, 23, 24, 39;
|
|
-.fi
|
|
-.PP
|
|
-The above ORO will request both identifiers (server, client), the preference,
|
|
-unicast, nameservers, domain-search, and FQDN(v6) options.
|
|
.SH DYNAMIC DNS
|
|
The client now has some very limited support for doing DNS updates
|
|
when a lease is acquired. This is prototypical, and probably doesn't
|
|
@@ -659,6 +649,18 @@ database and will record the media type
|
|
Whenever the client tries to renew the lease, it will use that same
|
|
media type. The lease must expire before the client will go back to
|
|
cycling through media types.
|
|
+.PP
|
|
+ \fBbootp-broadcast-always;\fR
|
|
+.PP
|
|
+The
|
|
+.B bootp-broadcast-always
|
|
+statement instructs dhclient to always set the bootp broadcast flag in
|
|
+request packets, so that servers will always broadcast replies.
|
|
+This is equivalent to supplying the dhclient -B argument, and has
|
|
+the same effect as specifying 'always-broadcast' in the server's dhcpd.conf.
|
|
+This option is provided as an extension to enable dhclient to work
|
|
+on IBM s390 Linux guests.
|
|
+.PP
|
|
.SH SAMPLE
|
|
The following configuration file is used on a laptop running NetBSD
|
|
1.3. The laptop has an IP alias of 192.5.5.213, and has one
|
|
@@ -680,10 +682,10 @@ interface "ep0" {
|
|
send host-name "andare.fugue.com";
|
|
send dhcp-client-identifier 1:0:a0:24:ab:fb:9c;
|
|
send dhcp-lease-time 3600;
|
|
- supersede domain-name "fugue.com rc.vix.com home.vix.com";
|
|
+ supersede domain-search "fugue.com", "rc.vix.com", "home.vix.com";
|
|
prepend domain-name-servers 127.0.0.1;
|
|
request subnet-mask, broadcast-address, time-offset, routers,
|
|
- domain-name, domain-name-servers, host-name;
|
|
+ domain-search, domain-name, domain-name-servers, host-name;
|
|
require subnet-mask, domain-name-servers;
|
|
script "CLIENTBINDIR/dhclient-script";
|
|
media "media 10baseT/UTP", "media 10base2/BNC";
|
|
diff -up dhcp-4.1.1/client/dhclient-script.8.man dhcp-4.1.1/client/dhclient-script.8
|
|
--- dhcp-4.1.1/client/dhclient-script.8.man 2009-07-25 00:04:51.000000000 +0200
|
|
+++ dhcp-4.1.1/client/dhclient-script.8 2010-02-25 17:45:46.000000000 +0100
|
|
@@ -47,7 +47,7 @@ customizations are needed, they should b
|
|
exit hooks provided (see HOOKS for details). These hooks will allow the
|
|
user to override the default behaviour of the client in creating a
|
|
.B /etc/resolv.conf
|
|
-file.
|
|
+file, and to handle DHCP options not handled by default.
|
|
.PP
|
|
No standard client script exists for some operating systems, even though
|
|
the actual client may work, so a pioneering user may well need to create
|
|
@@ -91,6 +91,26 @@ present. The
|
|
.B ETCDIR/dhclient-exit-hooks
|
|
script can modify the valid of exit_status to change the exit status
|
|
of dhclient-script.
|
|
+.PP
|
|
+Immediately after dhclient brings an interface UP with a new IP address,
|
|
+subnet mask, and routes, in the REBOOT/BOUND states, it will check for the
|
|
+existence of an executable
|
|
+.B ETCDIR/dhclient-up-hooks
|
|
+script, and source it if found. This script can handle DHCP options in
|
|
+the environment that are not handled by default. A per-interface.
|
|
+.B ETCDIR/dhclient-${IF}-up-hooks
|
|
+script will override the generic script and be sourced when interface
|
|
+$IF has been brought up.
|
|
+.PP
|
|
+Immediately before dhclient brings an interface DOWN, removing its IP
|
|
+address, subnet mask, and routes, in the STOP/RELEASE states, it will
|
|
+check for the existence of an executable
|
|
+.B ETCDIR/dhclient-down-hooks
|
|
+script, and source it if found. This script can handle DHCP options in
|
|
+the environment that are not handled by default. A per-interface
|
|
+.B ETCDIR/dhclient-${IF}-down-hooks
|
|
+script will override the generic script and be sourced when interface
|
|
+$IF is about to be brought down.
|
|
.SH OPERATION
|
|
When dhclient needs to invoke the client configuration script, it
|
|
defines a set of variables in the environment, and then invokes
|
|
diff -up dhcp-4.1.1/common/dhcp-options.5.man dhcp-4.1.1/common/dhcp-options.5
|
|
--- dhcp-4.1.1/common/dhcp-options.5.man 2009-07-25 00:04:52.000000000 +0200
|
|
+++ dhcp-4.1.1/common/dhcp-options.5 2010-02-25 17:40:19.000000000 +0100
|
|
@@ -905,6 +905,21 @@ classless IP routing - it does not inclu
|
|
classless IP routing is now the most widely deployed routing standard,
|
|
this option is virtually useless, and is not implemented by any of the
|
|
popular DHCP clients, for example the Microsoft DHCP client.
|
|
+.PP
|
|
+NOTE to Fedora dhclient users:
|
|
+.br
|
|
+dhclient-script interprets trailing 0 octets of the target as indicating
|
|
+the subnet class of the route, so for the following static-routes value:
|
|
+.br
|
|
+ option static-routes 172.0.0.0 172.16.2.254,
|
|
+.br
|
|
+ 192.168.0.0 192.168.2.254;
|
|
+.br
|
|
+dhclient-script will create routes:
|
|
+.br
|
|
+ 172/8 via 172.16.2.254 dev $interface
|
|
+.br
|
|
+ 192.168/16 via 192.168.2.254 dev $interface
|
|
.RE
|
|
.PP
|
|
.nf
|
|
diff -up dhcp-4.1.1/server/dhcpd.conf.5.man dhcp-4.1.1/server/dhcpd.conf.5
|
|
--- dhcp-4.1.1/server/dhcpd.conf.5.man 2009-07-23 21:02:10.000000000 +0200
|
|
+++ dhcp-4.1.1/server/dhcpd.conf.5 2010-02-25 17:51:20.000000000 +0100
|
|
@@ -519,6 +519,9 @@ pool {
|
|
};
|
|
.fi
|
|
.PP
|
|
+Dynamic BOOTP leases are not compatible with failover, and, as such,
|
|
+you need to disallow BOOTP in pools that you are using failover for.
|
|
+.PP
|
|
The server currently does very little sanity checking, so if you
|
|
configure it wrong, it will just fail in odd ways. I would recommend
|
|
therefore that you either do failover or don't do failover, but don't
|
|
@@ -533,9 +536,9 @@ primary server might look like this:
|
|
failover peer "foo" {
|
|
primary;
|
|
address anthrax.rc.vix.com;
|
|
- port 519;
|
|
+ port 647;
|
|
peer address trantor.rc.vix.com;
|
|
- peer port 520;
|
|
+ peer port 847;
|
|
max-response-delay 60;
|
|
max-unacked-updates 10;
|
|
mclt 3600;
|
|
@@ -594,9 +597,7 @@ statement
|
|
.B port \fIport-number\fR\fB;\fR
|
|
.PP
|
|
The \fBport\fR statement declares the TCP port on which the server
|
|
-should listen for connections from its failover peer. This statement
|
|
-may not currently be omitted, because the failover protocol does not
|
|
-yet have a reserved TCP port number.
|
|
+should listen for connections from its failover peer.
|
|
.RE
|
|
.PP
|
|
The
|
|
@@ -608,10 +609,8 @@ statement
|
|
.PP
|
|
The \fBpeer port\fR statement declares the TCP port to which the
|
|
server should connect to reach its failover peer for failover
|
|
-messages. This statement may not be omitted because the failover
|
|
-protocol does not yet have a reserved TCP port number. The port
|
|
-number declared in the \fBpeer port\fR statement may be the same as
|
|
-the port number declared in the \fBport\fR statement.
|
|
+messages. The port number declared in the \fBpeer port\fR statement
|
|
+may be the same as the port number declared in the \fBport\fR statement.
|
|
.RE
|
|
.PP
|
|
The
|
|
@@ -1278,7 +1277,7 @@ the zone containing PTR records - for IS
|
|
.PP
|
|
.nf
|
|
key DHCP_UPDATER {
|
|
- algorithm HMAC-MD5.SIG-ALG.REG.INT;
|
|
+ algorithm hmac-md5;
|
|
secret pRP5FapFoJ95JEL06sv4PQ==;
|
|
};
|
|
|
|
@@ -1301,7 +1300,7 @@ dhcpd.conf file:
|
|
.PP
|
|
.nf
|
|
key DHCP_UPDATER {
|
|
- algorithm HMAC-MD5.SIG-ALG.REG.INT;
|
|
+ algorithm hmac-md5;
|
|
secret pRP5FapFoJ95JEL06sv4PQ==;
|
|
};
|
|
|
|
@@ -2508,7 +2507,8 @@ statement
|
|
The \fInext-server\fR statement is used to specify the host address of
|
|
the server from which the initial boot file (specified in the
|
|
\fIfilename\fR statement) is to be loaded. \fIServer-name\fR should
|
|
-be a numeric IP address or a domain name.
|
|
+be a numeric IP address or a domain name. If no \fInext-server\fR statement
|
|
+applies to a given client, the address 0.0.0.0 is used.
|
|
.RE
|
|
.PP
|
|
The
|