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Blocking multicast traffic on a 4500G

Blocking multicast traffic on a 4500G

Blocking multicast traffic on a 4500G

I am trying to block outgoing multicast traffic on a specific port.  The goal is to not flood the network through that one port with any multicast traffic.  The following is a procedure we created to achieve this.  However it seems that multicast traffic is still coming through.  The switch is upgraded with the latest firmware 5.02 and boot-rom 5.01.  Is there another way to block multicast that is not shown in the tech manual for the 4500G?  Are we leaving out a crucial command?  Essentially multicast traffic should be blocked from leaving the switch on that one port.  Thank you in advance for the help.

3Com Switch Configuration
Manual Configuration
1.    Start HyperTerminal Crystal profile.  Can be found by following these Windows menu commands.  Start Programs Accessories Communications HyperTerminal 3com
2.    If new HyperTerminal profile is needed then enter in the following information:
a.    BPS: 19200
b.    Bits: 8
c.    Parity: None
d.    Stop Bits: 1
e.    Flow: None
3.    Press enter to begin login with the following parameters:
Username: admin <cr>
Password: <cr>
4.    <4500G> prompt appears in HyperTerminal window
5.    Type system-view and press enter to switch to system configuration mode
6.    Prompt should now show [4500G]
7.    Type interface vlan-1 and press enter
8.    Prompt should now show [4500G-Vlan-interface1]
9.    Type ip address 24 and press enter
10.    Type quit and press enter to leave Vlan interface mode
11.    Type igmp-snooping and press enter
12.    Prompt should now show [4500G-igmp-snooping]
13.    Type vlan 1 and press enter
14.    Prompt should now show [4500G-vlan1]
15.    Type igmp-snooping enable and press enter
16.    Type igmp-snooping version 3 and press enter
17.    Type igmp-snooping drop-unknown and press enter
18.    Type quit and press enter to leave Vlan mode
19.    Type acl number 3000 and press enter
20.    Prompt should now show [4500G-acl-adv-3000]
21.    Type rule 0 deny igmp and press enter
22.    Apply group policy according to Unit configuration:
a.    Grp 1 :
i.    Type interface gigabitethernet 1/0/1 and press enter
ii.    Type igmp-snooping group-policy 3000 and press enter
b.    Grp 2 :
i.    Type interface gigabitethernet 1/0/13 and press enter
ii.    Type igmp-snooping group-policy 3000 and press enter
23.    Type quit and press enter to leave GigabitEthernet interface mode
24.    Type port-group manual nonNet and press enter
25.    Prompt should now show [4500G-port-group-manual-nonNet]
26.    Add ports to port group according to Unit configuration:
a.    Grp 1: Type group-member gigabitethernet 1/0/2 to gigabitethernet 1/0/24 and press enter
b.    Grp 2:
i.    Type group-member gigabitethernet 1/0/1 to gigabitethernet 1/0/12 and press enter
ii.    Type group-member gigabitethernet 1/014 to gigabitethernet 1/0/24 and press enter
27.    Type igmp-snooping static-router-port vlan 1 and press enter
28.    Type save and press enter
29.    Prompt should now show The current configuration will be written to the device. Are you sure? [Y/N]:
30.    Type y and press enter
31.    Prompt should now show Please input the filename(*.cfg)[flash: /3Comoscfg.cfg] (To leave the existing filename unchanged, press the enter key):
32.    Press enter

Note:  Steps 33 & 34 will not be necessary if switch was recently upgraded or initialized

33.    Prompt should now show flash: /3Comoscfg.cfg exists, overwrite? [Y/N]:
34.    Type y and press enter
35.    Prompt should now show Validating file. Please wait ...............
Configuration is saved to device successfully.
36.    Type return and press enter to leave port group mode and return to basic configuration mode
37.    Prompt should now show <4500G>
38.    Type reboot and press enter
39.    Prompt should now show Start to check configuration with next startup configuration file, please wait ......... Done!
This command will reboot the device. Continue? [Y/N]:
40.    Type y and press enter


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