871W Router Wireless to Wireless Communication

Answered Question
Aug 15th, 2007
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I have an 871W router with a couple of clients connected. If 2 devices are both connected to the router the devices cannot ping each other. I can ping both devices from the router but not from the device. If I connect 1 of the devices to the ethernet switch of the router than I am able to ping the device from the other device. Any ideas why I cannot ping the device from the other device when both are wireless?

Correct Answer by paolo bevilacqua about 9 years 8 months ago

Hi,


try configuring:


interface Dot11Radio0


bridge-group 1 subscriber-loop-control

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding



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Overall Rating: 5 (2 ratings)
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paolo bevilacqua Wed, 08/15/2007 - 12:21
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Please send router configuration.

Correct Answer
paolo bevilacqua Thu, 08/16/2007 - 04:47
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Hi,


try configuring:


interface Dot11Radio0


bridge-group 1 subscriber-loop-control

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding



nrosselli Thu, 08/16/2007 - 04:50
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Thank you for the quick response. I will try this and let you know how it goes.

nrosselli Thu, 08/16/2007 - 18:42
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Your config changes got it working. Thanks for your help. Would you mind explaining why I needed these commands to enable this type of access?

paolo bevilacqua Fri, 08/17/2007 - 03:17
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As you see the radio interface works bridged to BVI interface. But being an AP, it is a special kind of bridge.


The commands (no source-learning) allows that a packet received on the radio interface is also sent to all the other connected wireless devices.


Thanks for the nice rating and good luck!

tromer Thu, 08/16/2007 - 10:13
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It might be your ACL, try this.


access-list 100 permit icmp any any echo


The echo requests may be getting blocked.


hth


ted

paolo bevilacqua Thu, 08/16/2007 - 10:27
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But it doesn't appear the ACL is blocking any traffic, and cisco's ACLs are supposed to behave in a predictable way.

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