Re: [magma] Question about IGMP host implementation
"V, Magesh (Magesh)" <magesh.v@alcatel-lucent.com> Wed, 12 October 2011 05:23 UTC
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From: "V, Magesh (Magesh)" <magesh.v@alcatel-lucent.com>
To: Kunal Shah <kunal.shah@ericsson.com>, "magma@ietf.org" <magma@ietf.org>
Date: Wed, 12 Oct 2011 10:52:58 +0530
Thread-Topic: Question about IGMP host implementation
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Subject: Re: [magma] Question about IGMP host implementation
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To the best of my knowledge the host does not care about the source-ip of the query for it to respond. I've seen this work always. OTOH, the igmp router needs to do this check for the reports received because they come from the untrusted side of the n/w. Thanks, Magesh. ________________________________ From: magma-bounces@ietf.org [mailto:magma-bounces@ietf.org] On Behalf Of Kunal Shah Sent: Wednesday, October 12, 2011 6:09 AM To: magma@ietf.org Subject: [magma] Question about IGMP host implementation Hi all, Can an IGMPv2 host respond to a general query originated from a subnet other then its own?? RFC 2236 states: ""query received" occurs when the host receives either a valid General Membership Query message, or a valid Group-Specific Membership Query message. To be valid, the Query message must be at least 8 octets long, and have a correct IGMP checksum. The group address in the IGMP header must either be zero (a General Query) or a valid multicast group address (a Group-Specific Query)" There is no requirement for the source address to be on the same subnet as the host. Thanks, Kunal
- [magma] Question about IGMP host implementation Kunal Shah
- Re: [magma] Question about IGMP host implementati… Indranil Bhattacharya
- Re: [magma] Question about IGMP host implementati… Beeram, Suresh KumarReddy
- Re: [magma] Question about IGMP host implementati… Bharat Joshi
- Re: [magma] Question about IGMP host implementati… Bharat Joshi
- Re: [magma] Question about IGMP host implementati… Indranil Bhattacharya
- Re: [magma] Question about IGMP host implementati… Indranil Bhattacharya
- Re: [magma] Question about IGMP host implementati… Kunal Shah
- Re: [magma] Question about IGMP host implementati… Bharat Joshi
- Re: [magma] Question about IGMP host implementati… Thomas Morin
- Re: [magma] Question about IGMP host implementati… Stig Venaas
- Re: [magma] Question about IGMP host implementati… Bharat Joshi
- Re: [magma] Question about IGMP host implementati… Stig Venaas
- Re: [magma] Question about IGMP host implementati… Hitoshi Asaeda
- Re: [magma] Question about IGMP host implementati… Thomas Morin
- Re: [magma] Question about IGMP host implementati… V, Magesh (Magesh)
- Re: [magma] Question about IGMP host implementati… Hitoshi Asaeda