From: Hong Chan (howard.chan34@gmail.com)
Date: Mon Aug 11 2008 - 22:02:30 ART
1. ip igmp access-group {ACL}
http://www.cisco.com/en/US/docs/ios/12_3/ipmulti/command/reference/ip3_i1g.html#wp1105962
Control the igmp message rather than multicast traffic.
2. ip multicast boundary {ACL} in/out
http://www.cisco.com/en/US/docs/ios/12_3/ipmulti/command/reference/ip3_i1g.html#wp1075549
Control the multicast traffic rather than igmp message. Can be used to
filter the auto-rp message also
3. ip access-group {ACL}
Just filter the address you define in the ACL
4. ip igmp filter {profile-number}
http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_44_se/command/reference/cli1.html#wp2238253
~ to igmp access-group, but in switching level for L3 interface
Please correct me if I am wrong
2008/8/10 Abdul <rslab007@gmail.com>
> Chi,
> The bottomline is if you fundamentally understand IGMP, and PIM, then
> understanding the filtering will much more sence to you.
>
> I would suggest go review the concepts again. I thought Peter's
> explaination of the filtering was pretty clear.
>
>
>
>
> On 8/9/08, Doan Dung Chi <dungchid@gmail.com> wrote:
> > Thanks Peter !
> > Can anyone explain more details (with example) ? Actually, I need to
> > understand deeper these concepts to choose the best way when doing the
> LAB.
> >
> > Thanks
> > ----- Original Message -----
> > From: ehiwe peter
> > To: Doan Dung Chi
> > Cc: Cisco certification
> > Sent: 09 August, 2008 02:59
> > Subject: Re: [help] Multicast Filtering !
> >
> >
> > igmp filter is similar to ip igmp access-group .
> > the ip igmp filter is implemented on switches but the ip igmp
> access-group
> > is implemented on routers.
> > The igmp profile specifies the multicast groups to be filtered the
> same
> > way
> > the acl does in igmp access-group.
> >
> > But they(igmp filter,ip igmp access-group) both prevent hosts on a lan
> > from
> > joining(igmp) the multicast groups specified in the acl and igmp
> profiles.
> >
> > But the other two methods filters or creates boundaries for multicast
> > traffic in any location of the multicast network unlike the igmp filter
> and
> > igmp acces-group which are both limited to the lan segment.
> >
> >
> >
> > On 8/8/08, Doan Dung Chi <dungchid@gmail.com> wrote:
> > Hi GS !
> >
> > To filtering multicast stream, we have some methods:
> > 1. ip igmp access-group {ACL}
> > 2. ip multicast boundary {ACL} in/out
> > 3. ip access-group {ACL}
> > 4. ip igmp filter {profile-number}
> >
> > Actually, I always confuse when choosing the method 1 & 2 & 3. With
> > method
> > 4,
> > I don't understand how it work? And which situation is used ?. In my
> > understand that:
> > - "ip igmp access-group": filter base on "inbound direction"
> > - "ip multicast boundary": filter base on "inbound/outboud direction"
> > - "ip access-group": filter base on "inbound/outbound" (this method
> is
> > not
> > common)
> > - "ip igmp filter {profile} : I don't understand this method. I read
> on
> > DocCD
> > "You can control the distribution of multicast services, such as
> IP/TV,
> > based
> > on some type of subscription or service plan. You might also want to
> > limit
> > the
> > number of multicast groups to which a user on a switch port can
> belong."
> >
> > Can anyone clarify 4 above methods, please. (which scenario is used
> for
> > each
> > method)
> >
> > Thanks
> >
> > Chidd
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> >
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> >
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> >
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>
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>
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