Motorola Netopia 3342N - Manual (Page 260)

Administrator’s Handbook
260
set ip dsl vccn netmask netmask
Specifies the subnet mask for the TCP/IP network connected to the vir tual circuit. The subnet mask speci-
fies which bits of the 32-bit binar y IP address represents network information. The default subnet mask for
most networks is 255.255.255.0 (Class C subnet mask).
set ip dsl vccn restrictions { admin-disabled | none }
Specifies restrictions on the types of traffic the Motorola Netopia® Gateway accepts over the DSL vir tual
circuit. The admin-disabled argument means that access to the device via telnet, web, and SNMP is
disabled. RIP and ICMP traffic is still accepted. The none argument means that all traffic is accepted.
set ip dsl vccn addr-mapping { on | off }
Specifies whether you want the Motorola Netopia® Gateway to use network address translation (NAT) when
communicating with remote routers. Address mapping lets you conceal details of your network from remote
routers. It also permits all LAN devices to share a single IP address. By default, address mapping is turned
“On”.
set ip dsl vccn auto-sensing [ off | dhcp/pppoe | pppoe/pppoa ]
Enables or disables DHCP/PPPoE or PPPoE/PPPoA autosensing on the specified inter face. Setting this to
DHCP/PPPoE enables automatic sensing of your WAN connection type: PPPoE or DHCP. The gateway
attempts to connect using PPPoE first. If the Gateway fails to connect after 60 seconds, it switches to
DHCP. As soon as it can connect via DHCP, the Gateway chooses and sets DHCP as its default. Other wise,
after attempting to connect via DHCP for 60 seconds, the Gateway switches back to PPPoE. The Gateway
will continue to switch back and for th in this manner until it successfully connects. Similarly, selecting
PPPoE/PPPoA causes the Gateway to attempt to connect by trying these protocols in parallel, and using
the first one that is successful.
set ip dsl vccn mcast-fwd [ on | off }
Enables or disables multi-cast for warding on the specified inter face. If set to on, this inter face acts as an
IGMP proxy host, and IGMP packets are transmitted and received on this inter face on behalf of IGMP hosts
on the LAN inter face.
set ip dsl vccn igmp-null-source-addr { on | off }
Specifies whether you want the Motorola Netopia® Gateway to identify the source IP address of ever y IGMP
packet transmitted from this inter face as 0.0.0.0 when
mcast-fwd is set to on. This complies with the
requirements of TR-101, and removes the need for a publicly adver tised IP address on the WAN inter face.
set ip dsl vccn unnumbered [ on | off }
Specifies whether you want the Motorola Netopia® Gateway to have its WAN inter face unnumbered, i.e. set
to 0.
unnumbered option is only available if the address is set to 0 for the inter face. Enables or disables
unnumbered IP addressing (where an address of 0 is allowed AND the DHCP client is disabled) on the spec-
ified inter face. This setting applies to native IP as well as PPP inter faces to suppor t running an IPoE inter-
face without an address.