Motorola Netopia 7000, Руководство администратора

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Administrator’s Handbook
262
set ip ethernet A netmask netmask
Specifies the subnet mask for the local Ethernet inter face. The subnet mask specifies which bits of the 32-
bit binar y IP address represent network information. The default subnet mask for most networks is
255.255.255.0 (Class C subnet mask).
set ip ethernet A restrictions { none | admin-disabled }
Specifies whether an administrator can open a telnet connection to a Motorola Netopia® Gateway over an
Ethernet inter face (
A
= the LAN) to monitor and configure the unit.
The
admin-disabled
argument prevents access to the device via telnet, web, and SNMP.
By default, administrative restrictions are
none
on the LAN, but
admin-disabled
is set on the WAN. This
means that, by default, an administrator can open, for example, a telnet connection from the LAN, but not
the WAN.
set ip ethernet A rip-send
{ off | v1 | v2 | v1-compat | v2-MD5 }
Specifies whether the Motorola Netopia® Gateway should use Routing Information Protocol (RIP) broad-
casts to adver tise its routing tables to other routers on your network. RIP Version 2 (RIP-2) is an extension
of the original Routing Information Protocol (RIP-1) that expands the amount of useful information in the RIP
packets. While RIP-1 and RIP-2 share the same basic algorithms, RIP-2 suppor ts several additional fea-
tures, including inclusion of subnet masks in RIP packets and implementation of multicasting instead of
broadcasting (which reduces the load on hosts which do not suppor t routing protocols. RIP-2 with MD5
authentication is an extension of RIP-2 that increases security by requiring an authentication key when
routes are adver tised.
If you specify v2-MD5 , you must also specify a rip-send-key . Keys are ASCII strings with a maximum of 31
characters, and must match the other router(s) keys for proper operation of MD5 suppor t.
Depending on your network needs, you can configure your Motorola Netopia® Gateway to suppor t RIP-1,
RIP-2, or RIP-2MD5.
set ip ethernet A rip-receive { off | v1 | v2 | v1-compat | v2-MD5 }
Specifies whether the Motorola Netopia® Gateway should use Routing Information Protocol (RIP) broad-
casts to update its routing tables with information received from other routers on your network.
If you specify
v2-MD5
, you must also specify a
rip-receive-key
. Keys are ASCII strings with a maximum of
31 characters, and must match the other router(s) keys for proper operation of MD5 suppor t.
Additional subnets
See “DHCP Settings” on page 248 for subnet range configuration commands.
set ip ethernet A subnet [ 2 ... 8 ] option [ on | off ]
Enables or disables additional LAN subnets. Up to seven additional subnets may be configured.