# Cisco Group Management Protocol (CGMP)

**URL:** <https://forum.networklessons.com/t/cisco-group-management-protocol-cgmp/1341>\
**Category:** Lessons Discussion\
**Created:** [December 29, 2016, 9:23pm UTC](https://forum.networklessons.com/t/cisco-group-management-protocol-cgmp/1341 "2016-12-29T21:23:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ReneMolenaar](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/renemolenaar/32/488_2.png) [@ReneMolenaar](https://forum.networklessons.com/u/ReneMolenaar)\
**Post date:** [December 29, 2016, 9:23pm UTC](https://forum.networklessons.com/t/cisco-group-management-protocol-cgmp/1341/1 "2016-12-29T21:23:58Z")

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This topic is to discuss the following lesson:

[https://networklessons.com/cisco/ccie-enterprise-infrastructurecisco-group-management-protocol-cgmp/](https://networklessons.com/cisco/ccie-enterprise-infrastructurecisco-group-management-protocol-cgmp/)

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**Author:** ![zizozoro1](https://cdn-forum.networklessons.com/letter_avatar_proxy/v4/letter/z/cdc98d/32.png) [@zizozoro1](https://forum.networklessons.com/u/zizozoro1)\
**Post date:** [July 13, 2016, 9:39am UTC](https://forum.networklessons.com/t/cisco-group-management-protocol-cgmp/1341/2 "2016-07-13T09:39:04Z")

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Dear Rene ,  
I think multicast address should be 01005e in this pic or not ?  
 ![?](https://networklessons.com/wp-content/uploads/2016/05/multicast-cgmp-forward-traffic-1.png)

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**Author:** ![ReneMolenaar](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/renemolenaar/32/488_2.png) [@ReneMolenaar](https://forum.networklessons.com/u/ReneMolenaar)\
**Post date:** [July 26, 2016, 5:53pm UTC](https://forum.networklessons.com/t/cisco-group-management-protocol-cgmp/1341/3 "2016-07-26T17:53:49Z")

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Dear Abdelaziz,

Thanks, just replaced this image!

Rene

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**Author:** ![faridmamedov002](https://cdn-forum.networklessons.com/letter_avatar_proxy/v4/letter/f/bbe5ce/32.png) [@faridmamedov002](https://forum.networklessons.com/u/faridmamedov002)\
**Post date:** [March 18, 2021, 5:33pm UTC](https://forum.networklessons.com/t/cisco-group-management-protocol-cgmp/1341/4 "2021-03-18T17:33:48Z")

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Hello,

I see there is no simulation about the Leave Message which has GDA with Group address and USA with zero and used for removal of multicast group from CAM table. Could you please specify how to simulate or test this message.