From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Thu Jan 19 2006 - 16:11:13 GMT-3
Multicast routing is not enabled at the interface level until
you enable PIM, as per the following output:
Rack1R1#sh run | in multicast-routing
!
! no multicast routing
!
Rack1R1#sh ip igmp interface Fa0/0
FastEthernet0/0 is up, line protocol is up
Internet address is 10.0.0.1/8
IGMP is disabled on interface <----------------
Multicast routing is disabled on interface <----
Multicast TTL threshold is 0
No multicast groups joined by this system
!
! IGMP and multicast routing disabled on the interface
!
Rack1R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Rack1R1(config)#ip multicast-routing
Rack1R1(config)#end
Rack1R1#
!
! multicast routing enabled
!
Rack1R1#sh ip igmp interface Fa0/0
FastEthernet0/0 is up, line protocol is up
Internet address is 10.0.0.1/8
IGMP is disabled on interface <----------------
Multicast routing is disabled on interface <----
Multicast TTL threshold is 0
No multicast groups joined by this system
!
! IGMP and multicast *still* routing disabled on the interface
!
Rack1R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Rack1R1(config)#int fa0/0
Rack1R1(config-if)#ip pim dense-mode
Rack1R1(config-if)#end
!
! PIM enabled on the interface
!
Rack1R1#sh ip igmp interface Fa0/0
FastEthernet0/0 is up, line protocol is up
Internet address is 10.0.0.1/8
IGMP is enabled on interface <----------------
Current IGMP host version is 2
Current IGMP router version is 2
IGMP query interval is 60 seconds
IGMP querier timeout is 120 seconds
IGMP max query response time is 10 seconds
Last member query count is 2
Last member query response interval is 1000 ms
Inbound IGMP access group is not set
IGMP activity: 1 joins, 0 leaves
Multicast routing is enabled on interface <----
Multicast TTL threshold is 0
Multicast designated router (DR) is 10.0.0.1 (this system)
IGMP querying router is 10.0.0.1 (this system)
Multicast groups joined by this system (number of users):
224.0.1.40(1)
!
! IGMP and Multicast routing now enabled on the interface
!
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
24/7 Support: http://forum.internetworkexpert.com
Live Chat: http://www.internetworkexpert.com/chat/
> -----Original Message-----
> From: Scott Morris [mailto:swm@emanon.com]
> Sent: Thursday, January 19, 2006 11:13 AM
> To: Brian McGahan; 'Nick'; ccielab@groupstudy.com
> Subject: RE: Question for you, Brian~~ Where is it?? IE LAB 8 vol1 -
> Multicast helper map Vs DOC CD
>
> Yup, you are correct. My apologies, I was stuck in the "other
vendor's"
> mode of thinking (working on other stuff, brain got stuck).
>
> Btw, the "multicast routing is disbled" message disappears as soon as
you
> enable multicast routing on the router globally. :)
>
> Scott
>
> -----Original Message-----
> From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
> Sent: Thursday, January 19, 2006 11:50 AM
> To: Scott Morris; Nick; ccielab@groupstudy.com
> Subject: RE: Question for you, Brian~~ Where is it?? IE LAB 8 vol1
> -Multicast helper map Vs DOC CD
>
> How do you configure the router to listen for IGMP join requests
on
> an interface if it's not PIM enabled?
>
> Rack1R1(config)#ip multicast-routing
> Rack1R1(config)#do sh ip igmp int fa0/0
> FastEthernet0/0 is up, line protocol is up
> Internet address is 164.1.18.1/24
> IGMP is disabled on interface <-----------------------
> Multicast routing is disabled on interface <-----------
> Multicast TTL threshold is 0
> No multicast groups joined by this system
>
> Rack1R1(config)#int fa0/0
> Rack1R1(config-if)#ip pim dense-mode
> Rack1R1(config-if)#do sh ip igmp int fa0/0 FastEthernet0/0 is up, line
> protocol is up
> Internet address is 164.1.18.1/24
> IGMP is enabled on interface <------------------------
> Current IGMP host version is 2
> Current IGMP router version is 2
> IGMP query interval is 60 seconds
> IGMP querier timeout is 120 seconds
> IGMP max query response time is 10 seconds
> Last member query count is 2
> Last member query response interval is 1000 ms
> Inbound IGMP access group is not set
> IGMP activity: 1 joins, 0 leaves
> Multicast routing is enabled on interface <------------
> Multicast TTL threshold is 0
> Multicast designated router (DR) is 164.1.18.1 (this system)
> IGMP querying router is 164.1.18.1 (this system)
> Multicast groups joined by this system (number of users):
>
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987 x 705
> Outside US: 775-826-4344 x 705
> 24/7 Support: http://forum.internetworkexpert.com
> Live Chat: http://www.internetworkexpert.com/chat/
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Scott Morris
> > Sent: Thursday, January 19, 2006 6:43 AM
> > To: 'Nick'; ccielab@groupstudy.com
> > Subject: RE: Question for you, Brian~~ Where is it?? IE LAB 8 vol1 -
> > Multicast helper map Vs DOC CD
> >
> > That's because in a real-world implementation, PIM does not get
> enabled on
> > client-facing networks. IGMP is the client-side operation.
> >
> > *Note* This comment is regarding the Beau Williamson book, as I have
> no
> > idea
> > what the IEWB labs are looking for you to do.
> >
> > Scot
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Nick
> > Sent: Thursday, January 19, 2006 4:02 AM
> > To: ccielab@groupstudy.com
> > Subject: Re: Question for you, Brian~~ Where is it?? IE LAB 8 vol1
> > -Multicast helper map Vs DOC CD
> >
> > Hi, Brian!
> >
> > Thank you for your support.
> >
> > I read your configuration, and got a question about enabling PIM.
> >
> > In the following situation(in your topology), on which interfaces
> would
> > you
> > enable PIM?
> >
> > B/C Server --Fa0/0(R2)S0/1------------S0/1(R1)F0/0-- B/C Client
> >
> > My suggestion was Fa0/0 and S0/1 on R2 plus S0/1 on R1, though
> >
> > Beue Williamson's multicast book is missing ip pim command on R2'
> Fa0/0
> > and
> > R1's S0/1.
> >
> > Thank you in advance, and appreciate your helpful posting here in
this
> > group.
> >
> > Regards,
> > Nick
> >
> > ----- Original Message -----
> > From: "Brian Dennis" <bdennis@internetworkexpert.com>
> > To: "Nick" <seajay76@nate.com>; <ccielab@groupstudy.com>
> > Sent: Thursday, January 19, 2006 3:46 PM
> > Subject: RE: Where is it?? IE LAB 8 vol1 -Multicast helper map Vs
DOC
> CD
> >
> >
> > > The solutions are on our member's site:
> > > http://members.internetworkexpert.com.
> > >
> > > For the benefit for the people that do not own the IEWB-RS
workbook
> here
> > > is a link to the question, solution, and diagram.
> > >
> > > http://www.internetworkexpert.com/downloads/mcast-helper.pdf
> > >
> > > Also note at this point in the lab, multicast has already been
> > > configured between the two routers (R1 & R2) in the question.
> > >
> > > HTH,
> > >
> > > Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> > > bdennis@internetworkexpert.com
> > >
> > > Internetwork Expert, Inc.
> > > http://www.InternetworkExpert.com
> > > Toll Free: 877-224-8987
> > > Direct: 775-745-6404 (Outside the US and Canada)
> > >
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
Behalf
> Of
> > > Nick
> > > Sent: Wednesday, January 18, 2006 10:24 PM
> > > To: ccielab@groupstudy.com
> > > Subject: Re: Where is it?? IE LAB 8 vol1 -Multicast helper map Vs
> DOC CD
> > >
> > > Dear Brian;
> > >
> > > I tried to find IE solution from your web site, only to fail.
> > >
> > > Where is it located? Or could you post the solution?
> > >
> > > Regards,
> > > Nick.
> > >
> > > ----- Original Message -----
> > > From: "Brian Dennis" <bdennis@internetworkexpert.com>
> > > To: "Anwar Chalamannil" <anwar.chalamannil@gmail.com>;
> > > <ccielab@groupstudy.com>
> > > Sent: Thursday, January 19, 2006 3:12 PM
> > > Subject: RE: IE LAB 8 vol1 -Multicast helper map Vs DOC CD
> > >
> > >
> > >> Personally I would go with the Internetwork Expert solution over
> the
> > >> DocCD but that's just me ;-) Read over the solutions guide for
> this
> > >> task and you will see how we verified the solution.
> > >>
> > >> HTH,
> > >>
> > >> Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> > >> bdennis@internetworkexpert.com
> > >>
> > >> Internetwork Expert, Inc.
> > >> http://www.InternetworkExpert.com
> > >> Toll Free: 877-224-8987
> > >> Direct: 775-745-6404 (Outside the US and Canada)
> > >>
> > >>
> > >> -----Original Message-----
> > >> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> Behalf
> > > Of
> > >> Anwar Chalamannil
> > >> Sent: Wednesday, January 18, 2006 9:35 PM
> > >> To: ccielab@groupstudy.com
> > >> Subject: IE LAB 8 vol1 -Multicast helper map Vs DOC CD
> > >>
> > >> Hello
> > >>
> > >> In IE lab vol1 lab8 task 5.5
> > >> In the solution
> > >> Helper map is configured on input interfaces of both first hope
> and
> > > and
> > >> last hope router .
> > >>
> > >> But in doc CD it looks like helper map is configured on input
> > > interface
> > >> of
> > >> first hop router and output interface of last hop router
> > >>
> > >>
> > >
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/hi
> > >> mc_c/
> > >> chap10/mcbcigmp.htm#wp1084257
> > >>
> > >> What would be the right solution ?
> > >> Configuring helper map on input interface of last hop or on
output
> > >> interface of last hop ?
> > >>
> > >> Thanks
> > >> Anwar
> > >>
> > >>
> > >
>
This archive was generated by hypermail 2.1.4 : Wed Feb 01 2006 - 07:45:49 GMT-3