Tahoe 1800, User Manual

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¡
dhcp network add <option name> <value>
¡
dhcp network del <option name> <value>
(instead of „network”, a „subnet” or „host” may be given; options
are described in 4.3.7.4), e.g. :
dhcp network add domain-name tahoe-group.com
Options are valid only for a given network, subnet or host.
Moreover two other parameters can be set:
¡
dhcp network default-lease-time <value>
Sets the time (in second), for which the IP address is assigned to
the station. After that time the station must inform the DHCP server that
it still uses that address. Otherwise the address will be considered as
unused. This timeout prevents blocking an IP address when a station is
switched off without releasing that address.
¡
dhcp network max-lease-time <value>
A station may request other lease time - the negotiated time may
not be higher than this setting.
3.3.7.8. dhcp default-lease-time <value>
dhcp max-lease-time <value>
These commands are similar to those described in the previous
paragraph, but their meaning is global.
3.3.8. exit, quit
The command closes the configuration session and disconnects
from the router.
3.3.9. fr
A group of commands used to configure the Frame Relay protocol
parameters. Following options are available:
¡
fr { ansi | q933a | cisco } - selects the LMI signaling: ANSI
®
T1.617 Annex D, ITU Q.933 Annex A or Cisco LMI
¡
fr t391 <value> - sets the T391 parameter, i.e. the number of
failed retries during the communication through the LMI, after
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which the connection is considered as unusable
¡
fr n391 <value> - sets the N391 parameter, i.e. the time
between subsequent LMI retries
¡
fr debug { on | off} - enables and disables sending the Frame
Relay debugging information through syslog
3.3.10. http
The “http” command configures the built-in WWW server. It is
used to provide an easy way to read router's statistics. Server can be
enabled or disabled by entering, respectively:
http on or http off
Moreover the access to the server may be limited by typing:
http host <IP address>
Then the server is only reachable from the given IP address. To
remove the limitation a 0.0.0.0 address should be entered.
3.3.11. ifconfig
The command allows configuring the network interfaces.
Following interfaces are available:
¡
eth0 - Ethernet interface
¡
eth0:0, eth0:1, etc . - eth0 interface aliases (one physical
interface may support several IP subnets)
¡
eth0.1, eth0.2, etc. - VLAN networks (LAN networks separated
from each other, although using the same cabling)
¡
eth0.1:0, eth0.1:1 , etc. - VLAN interface aliases
¡
fr1, fr2, etc. - Frame Relay PVCs (the number after “fr” is the
DLCI of a given PVC)
¡
ppp0 - PPP interface used when the WAN link works in the PPP
mode
¡
hdlc0 - HDLC interface used when the WAN link works in the
®
Cisco HDLC mode
This command has similar syntax as the Linux “ifconfig”:
ifconfig <interface name> [<IP address>] [netmask
<network mask>] [bcast <broadcast address>] [ static
| dynamic ] [bridge { on | off } ]