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Prestige 650R-31/33 ADSL Router
3-10 Internet Access
Table 3-3 TCP/IP Ethernet Setup Menu Fields
FIELD DESCRIPTION EXAMPLE
supports both IGMP version 1 (IGMP-v1) and version 2 (IGMP-v2).
Press the [
SPACE BAR] to enable IP Multicasting or select None
to disable it.
IP Policies Create policies using SMT menu 25 (see the IP Policy Routing
chapter) and apply them on the Prestige LAN interface here. You
can apply up to four IP Policy sets (from twelve) by entering their
numbers separated by commas.
2,4,7,9
Edit IP Alias The Prestige supports three logical LAN interfaces via its single
physical Ethernet interface with the Prestige itself as the gateway for
each LAN network. Press [SPACE BAR] to change No to Yes and
press [
ENTER] to for menu 3.2.1
No
(default)
When you have completed this menu, press [ENTER] at the prompt “Press ENTER to Confirm…” to save
your configuration, or press [
ESC] at any time to cancel.
3.9 VPI and VCI
Be sure to use the correct Virtual Path Identifier (VPI) and Virtual Channel Identifier (VCI) numbers
supplied by your telephone company. The valid range for the VPI is 0 to 255 and for the VCI is 32 to
65535 (0 to 31 is reserved for local management of ATM traffic). Please see the Appendices for more
information.
3.10 Multiplexing
There are two conventions to identify what protocols the virtual circuit (VC) is carrying. Be sure to use the
multiplexing method required by your ISP.
3.10.1 VC-based Multiplexing
In this case, by prior mutual agreement, each protocol is assigned to a specific virtual circuit, for example,
VC1 carries IP, etc. VC-based multiplexing may be dominant in environments where dynamic creation of
large numbers of ATM VCs is fast and economical.
3.10.2 LLC-based Multiplexing
In this case one VC carries multiple protocols with protocol identifying information being contained in each
packet header. Despite the extra bandwidth and processing overhead, this method may be advantageous if it