VIRATA ATMOS Console Bedienungsanleitung PDF herunterladen (Seite 9)

EMEA CSO 0013 USR8550 – Console commands 23/04/02 Page 9/58

mymachine> dhcpclient trace

No tracing options currently enabled.

mymachine> dhcpclient trace error warn note

Currently tracing: error warn note

DHCP-related IP process commands

The following commands are not provided by the DHCP client process but by the IP process ip

(see [2]).

ip device

Syntax:

ip device add <i/f> <type> <file> [mtu <size>] [<IP address>|dhcp]

ip device

Description:

The ip device add command adds an interface to the configuration of the IP stack. The last

parameter of the command would normally the IP address of the interface; use of the string

dhcp causes the IP address to be discovered by the DHCP client software. Note that using the

flag dhcp on an interface precludes running a DHCP server on that interface!

The ip device command lists the current configuration of any devices attached to the IP stack.

device configured to use DHCP will show

“dhcp” in the “IP address” column, followed by

the actual IP address discovered and bound by DHCP, if any.

For interfaces configured to use DHCP, saving configuration only marks the interface as using

DHCP; it does not save the actual IP address discovered by DHCP, which must be renewed.

A useful method of automatically configuring suitable IP devices is to put a

“device add”

statement into the file

“//isfs/resolve” and downloading it upon booting the image.

Example:

bd2000> ip device add ethernet ether //edd dhcp

…DHCP then discovers the IP address for the interface…

bd2000> ip device

# type dev file IP address

device ethernet ether //edd mtu 1500 dhcp

DHCP Server Console Commands

This section describes console commands provided by the

dhcpserver process.

dhcpserver config

Syntax:

dhcpserver config [add <text>|confirm|delete|flush]

Description:

This command displays or edits the current configuration of the DHCP server. To display

current configuration, provide no arguments to the command. Use of the “add” argument adds

the line

<text> to the configuration file. Use of the “confirm” argument reparses the

configuration file, confirming the changes made if the parse is successful. Use of the “delete”

argument deletes the last line from the configuration file. Use of the “flush” argument deletes

the whole configuration.

Following any change to the configuration file, it is necessary to “confirm” the changes, issue a

“flashfs update” to commit the change to FLASH, and then restart the system before the

changes

can take effect.

Example:

bd2000> dhcpserver config

---

Current DHCP server configuration

---

allow unknown-clients;

allow bootp;

subnet 192.168.219.0 netmask 255.255.255.0 {

range 192.168.219.10 192.168.219.30;

max-lease-time 5000;

}

bd2000> dhcpserver config flush

Configuration file flushed.

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