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24179
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13
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pinging multicast address

rajeshk200_2
Level 1
Level 1

Hi,

what will happen when we ping mutticast address??.....who reply back?

Regards,

Rajesh

6 Replies 6

henrybb
Level 1
Level 1

If you ping 224.0.0.10,then all router which run EIGRP will response .

So I think it will reply if it listening the multicast address.

Harold Ritter
Cisco Employee
Cisco Employee

All devices registered to receive the specific multicast group assuming they didn't register for a specific source and that your Multicast network is functioning as it should.

Hope this helps,

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

amit-singh
Level 8
Level 8

Rajesh,

Tough question to answer as it totally depends on how the Application behaves. Logically, its all the hosts who should reply back but still not sure about it as group hosts deosnot own that address. Again, its the application behaviour which stand in here.

HTH, Please rate if it does.

-amit singh

amit-singh
Level 8
Level 8

Rajesh,

just check and all the devices who=ich are registered to a specific group will all reply unicastly.

HTH, Please rate if it does.

-amit singh

Amit,

thanks for the response, right now i don't have any multicast appln in our network...soon we will be implementing that.

i was wondering how it will behave ..hopefully i got the answer.

i will test and let you know the response.

Regards,

Rajesh

pciaccio
Level 4
Level 4

For example; if you are running OSPF, the hello packets use 224.0.0.6. If you were to ping 224.0.0.6 all the OSPF routers that are sending hellos out will answer your ping. This is helpful if you have an INIT on your OSPF neighbor. Like the comment was stated below, it depends on how the application reacts to the multicast traffic...

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