ZyXEL Communications IES-1248-51 Betriebsanweisung PDF herunterladen (Seite 180)

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Chapter 20 IGMP

IES-1248-51V User’s Guide

180

20.7 IGMP Filter Screen

To open this screen, click Advanced Application > IGMP > Filter.

You can use the IGMP filter profiles to control access to a service that uses a

specific multicast group. Configure an IGMP filter profile that allows access to that

multicast group. Then assign the IGMP filter profile to ADSL ports that are allowed

to use the service.

Apply Click Apply to save your IGMP mode settings.

Clicking Apply saves your changes to the IES-1248-51V’s volatile

memory. The IES-1248-51V loses these changes if it is turned off or

loses power, so use the Config Save link on the navigation panel to

save your changes to the non-volatile memory when you are done

configuring.

Add Static Query

VLAN

Apply

When the IES-1248-51V has IGMP Proxy enabled, it does not

forward query messages from multicast source devices as they are

received. Instead, the IES-1248-51V determines whether and how

often to send a query message to downstream hosts.

Type the number of a VLAN to which you want the IES-1248-51V

sends query messages on behalf of a multicast server then click

Apply to add it. The VLAN ID appears in the Static Query VID

Table.

You must configure the system's VLAN settings before you can set

static query VIDs.

Note: If you use Static Query VLAN, then the IES-1248-51V will

send query messages and monitor for join or leave

messages indefinitely.

Static Query VID

Table

This table lists the manually added VLANs to which the system sends

IGMP query messages. These are multicast service subscriber VLANs.

Click Delete to remove the selected entry.

Dynamic Query

VID Table

This table lists the IGMP query VLANs that the system has dynamically

learned via IGMP snooping or IGMP proxy. These are VLANs on which

the system sends IGMP query messages. They are multicast service

subscriber VLANs.

Note: If the IES-1248-51V receives no response to its query

messages or the hosts do not send join or leave messages

after a certain time, then the query function will cease until

renewed later by the multicast server.

Table 39 Config (continued)

LABEL DESCRIPTION

1 2 ... 175 176 177 178 179 180 181 182 183 184 185 ... 653 654

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