PLANET ADE-3100 User Manual
Page 16
3
Bridge: Enable to connect the LAN to the WAN (bridge the two connections). This is
available in Bridge Mode only (see Table 5-2). Default is Disabled.
IGMP: IGMP (Internet Group Management Protocol) relay/proxy specification and
environment, default is Disabled. IGMP is available in all modes and all encapsulations.
Support IGMP proxy/relay function for Router, based on the following requirement and
cases:
l
On CO side, there must be at least one IGMP querier (router) present. IGMP
querier will send IGMP query packet. The Router is responsible to relay these
IGMP queries to Ethernet.
l
End-user multicast application device sends IGMP report while receiving IGMP
query or being activated by the user. The Router should be responsible to proxy
(that is, change source IP to Router’s WAN IP) the IGMP report to ADSL WAN
side, including all PVCs. The same case is for IGMP leave packet.
l
Not necessary to relay multicast routing between two ADSL PVCs or two
interfaces in LAN side.
l
Special purpose multicast packet (such as RIP 2 packet) should run without
Interference.
Table 5-2. Packet Process
Rx Entity
Packet Class
TTL
Action
IGMP query
1
Relay to Ethernet
IGMP report
1
Ignore
IGMP leave
1
Ignore
ADSL
General Multicast IP
-
Relay it to Ethernet
IGMP query
1
Ignore
IGMP report
1
Relay to all ADSL PVCs
IGMP leave
1
Relay to all ADSL PVCs
Ethernet
General Multicast IP
-
Ignore
Before the IGMP mode is enabled; please go to the Miscellaneous Configuration
page to enable the IGMP proxy. Otherwise, the IGMP selection will not be valid.
Where can I download the free software to test IGMP?
Answer: Please go to this link
http://pf.itd.nrl.navy.mil/projects.php?name=mgen
.
Encapsulation: The different types of encapsulation include PPPoA VC-Mux, PPPoA
LLC, 1483 Bridged IP LLC, 1483 Routed IP LLC, 1483 Bridged IP VC-Mux, 1483 Routed
IP VC-Mux, Classical IP over ATM, PPPoE VC-Mux, PPPoE LLC, and PPPoENone.
5.2.1 ATM
VPI: Virtual Path Identifier is a virtual path used for cell routing that is identified by an
eight bit field in the ATM cell header. The VPI field specifies this eight bit identifier for
routing.
Range: 0-255
Default: 0