Access to multicast groups. With this method, the router accepts the multicast packets in addition to forwarding them. The RP is like a “meeting point” for multicast traffic. The permit / deny and range commands specify the profile's filter type and address range. The kernel in Red Hat Enterprise Linux supports IGMPv3. Under Manage, click Device (s) > Switches. Let’s make sure that IGMP snooping is enabled on both switches: SW1#show ip igmp snooping | include snoop. • Use the ip igmp join-group interface configuration command. Nov 21, 2017 · You can configure an IGMP snooping querier to support IGMP snooping in subnets without multicast interfaces because the multicast traffic does not need to be routed. Configures a static connection to a virtual port channel (vPC) peer link. - PIM Dense Mode configured between R1 a Dec 8, 2023 · The following example shows how to configure the downstream device for IGMP proxy for multiple upstream interfaces. IGMP filtering allows users to configure filters on a switch virtual interface (SVI), a per-port, or a per-port per-VLAN basis to control the propagation of IGMP traffic through the network. To understand IGMP proxy, let’s first look at what a UDL (Unidirectional Link) is. Accepting the multicast packets prevents the switch from fast switching. Conclusion. [edit protocols igmp] user@host# set query-interval 200. igmp-snooping host-aging-time time. To display the IGMP snooping configuration for a specific VLAN, enter the following: Note: In this example, the IGMP snooping settings for VLAN 30 are displayed. The alias Any-Multicast and these two policies are added to your configuration: MR-PIM-Allow; MR-IGMP-Allow Configure the interval. . Otherwise, to configure the stack manually: Navigate to Switching > Monitor > Switch stacks. IGMP requires a firewall rule on the Downstream side (e. Version 2 on all interfaces. Mar 17, 2016 · IGMP snooping--IGMP snooping requires the LAN switch to examine, or “snoop,” some Layer 3 information in the IGMP packet sent from the host to the router. Configuration Examples for IGMP Snooping . To configure the interface you selected as a Rendezvous Point candidate, select the RP Candidate check box. Here you will find the startup configuration of each device. I would like to know if the IP address of the querier need to be configured on all switches (with the command: ip igmp snooping querier address xxx) or You can configure an IGMP snooping querier to support IGMP snooping in subnets without multicast interfaces because the multicast traffic does not need to be routed. IGMP Version 3 supports source filtering, which is required for SSM. 2 or later for EX Series switches. Mar 28, 2018 · Step 4. 0/24 IGMP is enabled on interface Current IGMP version is 2 RGMP is enabled IGMP query interval is 60 seconds IGMP querier timeout is 120 seconds IGMP max query response time is 10 seconds Last member query response interval is 1000 ms The Internet Group Management Protocol (IGMP) enables the administrator to manage routing and subscription to multicast traffic between networks, hosts, and routers. • Use the ip igmp static-group interface configuration command. SwitchA(config)# interface gigabitethernet 1/1/1. After the high specification mode is configured, the default value of the robustness variable changes from 2 to 3, the default value of the other querier present interval changes from 125s to 245s, and the default value of the IGMP general query interval changes from Allied Telesis routers and managed Layer 3 switches use IGMP (Internet Group Management Protocol) and MLD (Multicast Listener Discovery) to track which multicast groups their clients belong to. Select the VLAN row(s) for which you want to configure IGMP, and click Edit. A querier device sends query messages to determine if hosts are still Oct 31, 2023 · IGMP overview. Enable multicast routing. Depending on privilege level, use the following commands to configure IGMP on VLAN 1: Switch (config)# vlan 1 HP Switch (vlan-1)# ip igmp auto 1,2 HP Switch (vlan-1)# ip igmp forward 3,4 HP Switch (vlan-1)# ip igmp blocked 5,6. With this method, the switch does not accept the Prerequisites for IGMP Snooping. The configuration of the high specification mode takes effect after a restart. To configure an IGMP profile, use the ip igmp profile global configuration command with a profile number to create an IGMP profile and to enter IGMP profile configuration mode. Jul 2, 2022 · from Juniper: Using the Device as an IGMP Querier "If you configure multiple devices to be IGMP queriers, the device with the lowest (smallest) IGMP querier source address takes precedence and acts as the querier. Junos OS Release 13. No group memberships are defined. [edit protocols] user@switch# set igmp-snooping vlan employee-vlan. Reload to refresh your session. Click the configuration icon to display the switch configuration dashboard. The settings are saved. Create an IGMP profile under the interface profile. Configuring the Firepower Threat Defense device to join a multicast group causes upstream routers to maintain multicast routing table information for that group and keep the paths for that group active. Nov 10, 2020 · IGMP version 2 is enabled by default as soon as you enable PIM on a router interface. For information about IGMP, see Chapter 31, “Configuring IPv4 Multicast Layer 3 Switching. LAN) to pass its multicast traffic. If you want IGMP version 3, you need to explicitly configure it. Step 6. IGMP configuration for all VLANs on the switch. Mar 2, 2019 · The below is with the GUI if you need CLI commands just let me know. All access lists to be used with the tasks in this module should be configured prior to beginning the configuration task. The multicast routing device can be a querier or a non-querier. This enables them to send the correct multimedia streams to the correct destinations. To configure the switch to filter unknown multicast messages, move the Filter Unknown Multicast toggle switch to the on position. When a multicast host leaves a group, a host that runs IGMPv2 or later sends an IGMP leave message. May 8, 2017 · Use the ip igmp join-group command to configure an interface on the router to join the specified group or channel. pimd supports pim-sm as well as igmp v2 and v3. To configure an IGMP querier: Navigate to Switch > Configure > Routing and DHCP. Log into the M4300 GUI, and click blue button APPLY before leaving each page below: - Go to Switching\Multicast\IGMP Snooping\Configuration: have all three IGMP Snooping Configuration Admin Mode, Validate IGMP Header and Proxy Querier mode ENABLE. Mar 17, 2016 · IGMP is the Internet Engineering Task Force (IETF) standards track protocol used for hosts to signal multicast group membership to routers. Select Switching > Multicast > IGMP Snooping > IGMP VLAN Configuration. Click the APPLY button in the bottom right-hand corner of the screen (disabled by default)—When there is only one member in a multicast group and the virtual router receives an IGMP Leave message for that group, the Immediate Leave setting causes the virtual router to remove that group and outgoing interface from the multicast routing information base (mRIB) and multicast forwarding information base (mFIB) immediately, rather than waiting for the Last Member Oct 17, 2021 · how to configure the IGMP query message periodicity to keep or discard IGMP group information before the FortiGate as DR removes the member from the group and sends a prune message to the associated RP. Configures the aging time of dynamic multicast members. You can configure an IGMP snooping querier to support IGMP snooping in subnets without multicast interfaces because the multicast traffic does not need to be routed. In the Multicast menu on the left select IGMP Snooping, which will open the IGMP Snooping Configuration page. Apr 1, 2024 · Configure port isolation in controller mode: In controller mode, go to Devices, click on the device connected with multiple IPTV Sources, in the device’s private configuration page, go to Ports, click the edit button of the ports connected with the IPTV Sources, tick Profile Overrides, then tick Port Isolation. To change the IGMP settings of a VLAN, select its radio button and click the Edit button. Default Setting. Nov 19, 2016 · Step 1. Internet Group Management Protocol (IGMP) snooping constrains the flooding of IPv4 multicast traffic on VLANs on a device. The value can be from 1 through 1024 seconds. To use these features, you should also set up a RADIUS server and go to SECURITY > AAA > RADIUS Config to configure RADIUS server for the switch. Use the no command to disable IGMP snooping on a VLAN. This table displays the default IGMP configuration for the switch. IGMP is a network layer protocol used to set up multicasting on networks that use the Internet Protocol version 4 (IPv4). The Internet Group Management Protocol (IGMP) enables the administrator to manage routing and subscription to multicast traffic between networks, hosts, and routers. Provides the basic query-response mechanism that allows the multicast device to determine which multicast groups are active and other processes that enable hosts to join and leave a multicast group. A screen similar to the following displays. VLAN IDs 1002―1005 are reserved for Token Ring and FDDI VLANs, and cannot be used in IGMP snooping. Jan 11, 2024 · Configure the switch stack in the dashboard. Click Add to create a new interface instance. Step 1. Click Add. You can configure an interface to be a member of a multicast group. The show ip igmp config command lists the IGMP configuration for all VLANs configured on the switch or for a specific VLAN. Description . Next, select the proper IGMP version. The IGMP host proxy can be in a query mode or unsolicited mode. SW2#show ip igmp snooping | include snoop. Enable IGMP snooping on a VLAN using the following command. show ip igmp < vid > config. Syntax: show ip igmp config. This example shows how to configure the IGMP snooping parameters: configure terminal ip igmp snooping vlan 2 Click IGMP. There are some important timers used with IGMP. Additionally PIM can be used in the EVPN underlay network for optimizing forwarding of overlay BUM traffic. group ip-address {. ” You can configure the IGMP snooping querier on the router to support IGMP snooping in subnets that If the maximum number of IGMP groups is set, the IGMP snooping forwarding table contains the maximum number of entries, and the interface receives an IGMP join report, you can configure an interface to drop the IGMP report or to replace the randomly selected multicast entry with the received IGMP report. This can help prevent multicast traffic from flooding the network and reduce congestion. In the Admin Mode field, select Enable. You are here: CLI: Configuring and displaying IGMP. group-limit limit ; host-only-interface ; immediate-leave ; multicast-router-interface; static {. With this method, the switch accepts the multicast packets in addition to forwarding them. SwitchA(config-if)# ip igmp query-interval 100. For IGMP operating status, see the section "Internet Group Management Protocol (IGMP) status" in the chapter "Monitoring and Analyzing Switch Operation" of the Management and Configuration Guidefor your switch. To check if this host is the last host to leave the group, the software sends an IGMP query message and starts a timer that you can configure called the last member query response interval. For example, for testing IGMP snooping with Layer 2 multicast forwarding, you might assign an interface to a All access lists to be used with the tasks in this module should be configured prior to beginning the configuration task. PIM. Accepting the multicast packets prevents the router from fast switching. Verify the configuration by checking the IGMP Query Interval field in the output of the show igmp interface command. Example: Nov 1, 2023 · Select the VLAN interface child of the Fortilink LAG interface. 0 ip pim passive ip igmp upstream-proxy l2 ip igmp iif-starg ip igmp proxy-report-interval 100 end class-map type multicast-flows l2 group 229. ip multicast-routing. Dec 8, 2023 · To make this scenario functional, therefore, you must enable IGMP report forwarding of proxied (*, G) multicast static route (mroute) entries (using the ip igmp mroute-proxy command) and enable the mroute proxy service (using the ip igmp proxy-service command) on interfaces leading to PIM-enabled networks with potential members. You switched accounts on another tab or window. IGMP snooping requires a Supervisor III card. You signed in with another tab or window. Configure an interface to belong to a multicast group. SolutionOverview. Click Save. igmp-snooping max-response-time time. Enable igmp forward. 0. Multilayer switch as a member of a multicast group. IGMP Snooping checks IGMP packets passing through the network and configures Multicasting accordingly. Enabling IGMP Snooping; Configuring IGMP Snooping Globally Profiles are created in IGMP-profile configuration mode, then applied to an interface in interface configuration mode. Remove any PIM specific configuration on the ASA if there's any. After executing the above commands, use the following command to display the VLAN and per-port configuration . Jun 28, 2016 · Hi everybody, I have a question about the configuration of IGMP querier. I have a small setup with 3 cascaded switches and a querier configured on the "Main switch" (where SVI are configured). - When the client is ready to leave the multicast group, it sends an IGMP Leave G Use the clear ip igmp snooping statistics vlan command to clear IGMP snooping statistics. IGMPv1 . Select or Add an interface. ip igmp snooping {enable | disable} For example, the following command enables IGMP snooping on VLAN 2: switch (config)# vlan 2 switch (config-vlan)# ip igmp snooping enable. Mar 17, 2016 · If IGMP snooping is configured on a Bridge Domain without OTV, the IGMP snooping process does not limit multicast traffic. Before you configure IGMP snooping, be sure you have: Configured the vlan100 VLAN on the switch. By default, the aging time of dynamic multicast member is 300 seconds. Enable multicast routing on the router in global configuration mode. This example uses the following software and hardware components: One EX4300 Series switch. The IGMP host proxy interface should have IP enabled. Table 3 Default IGMP Configuration; Feature. Click OK. Dec 7, 2021 · If the maximum number of IGMP groups is set, the IGMP snooping forwarding table contains the maximum number of entries, and the interface receives an IGMP join report, you can configure an interface to drop the IGMP report or to replace the randomly selected multicast entry with the received IGMP report. Enter Name, Interface IP, and VLAN. May 19, 2011 · This section describes the information you need to configure the features described in this document. Procedure. Internet Group Management Protocol (IGMP) is used by IPv4 hosts and routers to report their IP multicast group memberships to neighboring multicast routers. Step 2. All groups are allowed on an interface. x. How to Configure IGMP Snooping. Aug 24, 2023 · Configure the IGMP Routing: Enter the web GUI and go to Menu > IP Application > IGMP. Or we can, use the default values. Click on the paper/pencil icon next to the VLAN you want to enable for MLD snooping. When the switch hears an IGMP report from a host for a particular multicast group, the switch adds the host’s port number to the associated multicast table entry. Step 5. Jun 28, 2017 · This table displays the default IGMP configuration for the device. Aug 15, 2018 · Step 1. Mar 26, 2024 · To configure an IGMP querier: Navigate to Switch > Configure > Routing and DHCP. Here’s how it works: Each router that receives multicast traffic from a source will forward it to the RP. A multicast router keeps a list of multicast group memberships for each attached network, and a timer for each membership. 1 255. Oct 31, 2023 · Configure MLD Snooping (IPv6) Go to L2 Features -> MLD Snooping -> Global Config. Use the following configuration steps as needed for your network to enable IGMP snooping on all VLANs (where supported), enable or disable IGMP snooping selectively on a VLAN, and configure available IGMP snooping options: To enable IGMP snooping on all VLANs (where supported, such as on some EX Series switches): content_copy zoom_out_map. Enable the IGMP snooping querier globally. switch (config-vlan)# ip igmp snooping mrouter vpc-peer-link. The Edit IGMP Snooping Settings window opens. Mar 17, 2016 · Router> show ip igmp interface gigabitethernet1/0 is up, line protocol is up Internet address is 10. IGMP For SSM to run with IGMPv3, SSM must be supported in the router, the host where the application is running, and the application itself. The following example shows how to globally enable the IGMP snooping querier feature: Mar 2, 2023 · Here are some top considerations to keep in mind when configuring IGMP snooping: Enable IGMP snooping on all switches: To ensure proper multicast traffic forwarding and filtering, IGMP snooping should be enabled on all switches in the network. 1 of the Catalyst 5000. Multilayer device as a member of a multicast group. To configure Internet Group Management Protocol (IGMP) snooping, include the igmp-snooping statement: immediate-leave ; interface interface-name {. If the dashboard has already detected the correct stack under Detected potential stacks, click Provision this stack to automatically configure the stack. IGMP querier is available as of firmware version MS 9. The ip igmp profile command places the switch in IGMP profile configuration mode. This section includes the following topics: † Configuring IGMP Interface Parameters, page 3-6 † Configuring an IGMP SSM Translation, page 3-11 † Configuring the Enforce Router Alert Option Check, page 3-12 Jul 6, 2022 · IGMP Proxy Configuration. 1 to Configuration Examples IGMP Snooping • The IGMP Snooping is a L2 function. To configure the stub router to forward IGMP host reports and Leave messages, use the ip igmp helper-address command in interface configuration mode. When enabled, the IGMP snooping querier uses the IP address as the query source address. Jan 30, 2019 · If you want the devices to accept the IGMP general query messages, configure the IGMP snooping querier to run IGMPv1. asa (config)# multicast-routing. The IGMP Snooping Table displays all of the VLANs currently configured on the switch, as well as their IGMP settings. Follow these steps to enable IGMP IGMP, which runs at Layer 3 on a multicast router, generates Layer 3 IGMP queries in subnets where the multicast traffic needs to be routed. Click Apply. Multicast routing devices use IGMP to learn which groups have members in their connected networks. With IGMP snooping enabled, the device monitors IGMP traffic on the network and uses what it learns to forward multicast traffic to only the downstream interfaces that are connected to interested Mar 29, 2023 · Enable IGMP snooping on VLAN 1. Enter the following information: In the VLAN ID field, enter 1. Displays IGMP configuration for a specific VLAN on the switch, including per-port data. Select Enable as shown in the figure below. Assigned interfaces ge-0/0/0, ge-0/0/1, ge-0/0/2, and ge-0/0/12 to vlan100. Configure IGMP Join Groups. 3. To configure the IGMP Proxy: Navigate to Services > IGMP Proxy. Multicast group memberships include at least one Aug 7, 2017 · First select the Switching tab, then in the menu bar select Multicast. Step 4. The default admin user name is admin and the default admin password is blank, that is, do not enter a password. You signed out in another tab or window. content_copy zoom_out_map. Enter Name, Interface IP , and VLAN. /*]]>*/. These timers and the configuration commands are given below: • IGMP Host-Query Message. Apr 25, 2012 · When the CPU receives the IGMP report multicast by Host 1, the CPU uses the information in the IGMP report to set up a forwarding-table entry, as shown in Table 38-1, that includes the port numbers of Host 1, the multicast router, and the switch internal CPU. Table 4 Default IGMP Configuration; Feature. For detailed information about using these commands, see the C isco Nexus 3000 Series Command Reference,. Example: Device(config)# igmp-snooping host-aging time 300. Each router that wants to receive multicast traffic will go to the RP. To configure an IGMP profile, follow these steps: 1. 1. IGMP is used for IPv4 multicasting, and MLD is used for IPv6 Page 310 M4300 Series and M4300-96X Fully Managed Switches User Manual In the address field of your web browser, enter the IP address of the switch. Examples. Enable MLD Snooping Status and MLD Snooping Querier. We can adjust them for our network. Assign IGMP profile to a VLAN interface. Configure the instance. Enable MLD Snooping and Forward Unknown Multicast groups. Enable IGMP profile (by default, IGMP version 2 is enabled). If the maximum number of IGMP groups is set, the IGMP snooping forwarding table contains the maximum number of entries, and the interface receives an IGMP join report, you can configure an interface to drop the IGMP report or to replace the randomly selected multicast entry with the received IGMP report. IGMP host-query Dec 16, 2022 · Internet Group Management Protocol (IGMP) snooping is available with release 4. Configure the IGMP host proxy unsolicited mode on a layer 3 physical port. Aug 27, 2021 · When a multicast host leaves a group, a host that runs IGMPv2 or later sends an IGMP leave message. Viewing the Current IGMP Configuration. Jul 18, 2012 · In this video, Keith Barker will review how to setup VLC to be a multicast server, and also implement Cisco's IGMP snooping on a 3560 switch, to minimize the Mar 19, 2015 · Table 1 IGMP Versions; IGMP Version . Configure PIM routing on the associated interface (s) in the interface configuration mode. The login window opens. (Optional) In the Privileged EXEC mode of the switch, save the configured settings to the startup configuration file by entering the following: IGMP membership report (IGMP join message) to the group with the equivalent MAC destination address of 0x0100. 255. Note that you generally don’t want to configure this unless you’re using SSM. A router is still necessary with IGMP snooping to provide the IGMP querying. age 43-14 NoteTo use IGMP snooping, configure a Layer 3 interface in the subnet for multicast routing (see Chapter 42, “IPv4 Multicast Layer 3 Features”) or enable the IGMP snooping querier in the subnet (see the “Enabling the IGMP Snooping Querier” sec. In the Advanced Options of the firewall rule, Allow packets with IP Options You can configure an interface with an IGMP Query interval and the amount of time allowed for a receiver to respond to a query (the Max Query Response Time). Configure an IP address on the VLAN interface. asa (config)# no pim rp-address x. IGMP Proxy allows hosts in a UDLR (Unidirectional Link Routing) topology that are not directly connected to a downstream router to join a multicast group from an upstream router by using a back channel. To solve this issue, PIM sparse mode uses a RP (Rendezvous Point) in the network. Disabling IGMP version 3 using the no version v3 command enables the IGMP version 2. Apr 5, 2024 · If the maximum number of IGMP groups is set, the IGMP snooping forwarding table contains the maximum number of entries, and the interface receives an IGMP join report, you can configure an interface to drop the IGMP report or to replace the randomly selected multicast entry with the received IGMP report. In this scenario, the snooping tables are not populated and the multicast traffic floods the entire VLAN. pim is vrf aware and can work within the context of vrf’s in order to do S,G mrouting. May 25, 2022 · This article explains how FortiGate responds to various PIM Dense mode and IGMP messages in a multicast network. Choose the menu L2 FEATURES > Multicast > IGMP Snooping > IGMP Authentication to load the following page. interface gigabitethernet0/0 ip address 99. RouterA(config)#interface Ethernet0/0 RouterA(config-if)#ip igmp version 3. 99. 1 group 228. If a port spanning-tree, a port group, or a VLAN ID change occurs, the IGMP snooping-learned multicast groups from this port on the VLAN are deleted. A profile may contain multiple range statements to A Switch supporting IGMP Snooping can passively snoop on IGMP Query, Report, and Leave packets transferred between IP Multicast Switches and IP Multicast hosts to determine the IP Multicast group membership. • IGMP snooping enables the Switch to learn Multicast group membership based on IGMP messages passing through the switch • Based on the IGMP query and report messages that are snooped, the switch forwards multicast traffic only to the ports that requested it. Click IGMP. Note: Adding a new L3 interface on an MS390 automatically enables an IGMP querier for that VLAN. By managing the IGMP traffic, IGMP filtering provides the capability to manage IGMP snooping, which in turn controls the forwarding of multicast traffic. 2. For information about how to configure an access list, see the “Creating an IP Access List and Applying It to an Interface” module of the Security Configuration Guide: Access Control Lists guide. IGMP Snooping Overview. The PIM will be set as 'passive' later, so there is no need to worry about the PIM mode, DR Priority, or RP Candidate. The Internet Group Management Protocol (IGMP) is a protocol that allows several devices to share one IP address so they can all receive the same data. This article assumes that the PIM and IGMP configuration are already in place: - IGMP is configured on LHR (Last Hop Router) in this diagram R2. Select Enable or Disable from the IGMP drop-down. Figure 2 – Enabling IGMP Snooping on the switch. To display multicast information, use the ip maddr show subcommand, for example: inet 224. When a virtual router receives an IGMP Leave message from a receiver to leave a group, the virtual router checks that the interface that received the Leave message is not configured with Aug 2, 2020 · If the maximum number of IGMP groups is set, the IGMP snooping forwarding table contains the maximum number of entries, and the interface receives an IGMP join report, you can configure an interface to drop the IGMP report or to replace the randomly selected multicast entry with the received IGMP report. (disabled by default)—When there is only one member in a multicast group and the virtual router receives an IGMP Leave message for that group, the Immediate Leave setting causes the virtual router to remove that group and outgoing interface from the multicast routing information base (mRIB) and multicast forwarding information base (mFIB) immediately, rather than waiting for the Last Member Configure IGMP snooping: Enable and configure IGMP snooping on the VLAN employee-vlan: content_copy zoom_out_map. Jul 29, 2011 · Step 11. IGMP host-query Configuring IGMP Parameters You can configure the IGMP global and interface parame ters to affect the operation of the IGMP process. Based on the IGMP query and report In the Network Operations app, use the filter to select a group or a device. The devices with higher IGMP querier source addresses stop sending IGMP queries unless they d IGMP. Under multicast support, selection Enable IGMP snooping querier. Check the “Active” box and select VLAN10 and VLAN20 as IGMP-v2. PIM – Protocol Independent Multicast. Figure 2-5 Configure IGMP Accounting and Authentication. g. The IGMP page is displayed with the list of existing VLANs. From this mode, you can specify the parameters of the IGMP profile to be used for filtering IGMP join requests from a port. Step 3. Syntax: show ip igmp vlan <vid> config. IGMP version. IGMP snooping : Enabled. A UDL is a link where traffic only goes one way. Specify the IP address of an interface on the central router. 0203. Enter the user name and password. Observe these guidelines when configuring the IGMP snooping querier: Configure the VLAN in global configuration mode. Apr 12, 2024 · IGMP snooping is now available on all platforms and conforms to RFC4604 standards. The IGMP Internet Group Management Protocol. 5E01. Specifically, IGMP allows devices to join a multicasting group. By default, the vPC peer-link is considered as a multicast router port and the multicast packet is sent to the peer-link for each receiver VLAN. However, the DR priority needs to be filled in: set it to a value of '1'. Click add one / Add a stack: Dec 16, 2021 · The ideal configuration point is the RP. Note. The Internet Group Management Protocol (IGMP) is used to register the hosts in a multicast group on a LAN. When the CPU receives the IGMP report multicast by Host 1, the CPU uses the information in the IGMP repo rt to set up a forwarding-table entry, that includes the port numbers Enters global configuration mode. No configuration other than PIM is necessary to configure IGMP snooping on the router. 4. If the reports need to be sent without the presence of a querier, configure the IGMP host proxy in unsolicited mode. oz gi ib qz fz cq rg xs nv io