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unwanted igmp

Wed Apr 20, 2016 8:26 am

hi all can anyone explain me that why my router continuously broadcast to a multicast ip is my wan ip on isp interface with a /24 is my lan interface ip
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Device: RB2011UIAS-RM, RB750GL, CISCO SG300-28, UNIFI UAP-LR
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Re: unwanted igmp

Wed Apr 20, 2016 1:32 pm

Because you probably enabled ospf or some other routing protocol on that interface and it is repeatedly announcing itself to its multicast group, on which there is no communication partner, so it keeps retrying...
Torturing CCR1009-7G-1C-1S+, RB450G, RB750GL, RB951G-2HnD, RB960PGS, RB260GSP, OmniTIK 5HnD and NetMetal 922UAGS-5HPacD + R11e-5HnD in my home network.

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