ZyXEL Communications Corporation P873HNUP51B Manuel D’Utilisation

 Chapter 13 IGMP

P-873HNUP-51B User’s Guide

Use the General screen to configure general IGMP proxy and IGMP packet processing settings.

Click Network Settings > IGMP Setting > General to open the following screen.

Figure 78   Network Settings > IGMP Setting > General 

The following table describes the fields in this screen.

Table 57   Network Settings > IGMP Setting > General

IGMP Proxy State

Query Interval 

Specify how many seconds since the last query the ZyXEL Device waits before 
it queries all directly connected networks to gather multicast group 
membership.

Query Response 
Interval

Specify how many seconds the host allots for gathering membership 
information from directly connected networks before it sends a report.

Robustness Value

This is the number of times the host sends a report to the ZyXEL Device when 
the ZyXEL Device queries for the host’s status.

IGMP Packet 
Process

Select one or more of these fields to increase the IGMP network’s security or 
control which types of IGMP packets the ZyXEL Device forwards. 

Ignore IGMP 
packets not from 
LAN subnet 

Select this to discard IGMP packets from IP addresses other than the LAN 
subnet.

Ignore IGMP report 
without router alert 
option 

Select this to discard IGMP report packets that do not include a router alert 
option. 

Ignore IGMP leave 
without router alert 
option 

Select this to discard IGMP leave packets that do not include a router alert 
option. 

Ignore IGMP query 
without router alert 
option

Select this to discard IGMP query packets that do not include a router alert 
option.