RE: Multicasting [7:72403]
I've never configured it with a tunnel before, but conceptually it should be the same. What mode are you using? Sparse, Dense, Sparse-dense? Are you doing auto-rp? Using MSDP? Read the Cisco docs on their web site and it gives you a run-down on all of the different configuration methods. Fred Reimer - CCNA Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 NOTICE; This email contains confidential or proprietary information which may be legally privileged. It is intended only for the named recipient(s). If an addressing or transmission error has misdirected the email, please notify the author by replying to this message. If you are not the named recipient, you are not authorized to use, disclose, distribute, copy, print or rely on this email, and should immediately delete it from your computer. -Original Message- From: MR [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 16, 2003 12:23 PM To: [EMAIL PROTECTED] Subject: Multicasting [7:72403] Hi, This is on multicasting. We are trying to setup a muticasted n/w on GRE tunnel with mutilple transit routers. We have enabled muticast only in the end routers i.e tunnel source/destination routers. IGMP too has been enabled with a group being formed. Though we were able to successfully carry out multicasting with tunnel on a serial link , we have not been able to when its not a point to point link. Could observe that there is traffic in the tunnel on the source side , but nil at the other end. On the configuration side, we enabled PIM/IGMP on tunnel interface and other interfaces. Could anyone tell me what should the ideal configuration be. Please let me know incase you need more info. Rgds Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72416&t=72403 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Multicasting [7:72403]
I have configured it same time ago; the serial link was frame relay. But I used point-to-point subinterface Something like that: R1 interface tunnel 0 ip address 172.16.1.1 255.255.255.252 ip pim sparse-dense-mode tunnel source 192.168.1.1 tunnel destination 192.168.1.2 ! inter ser 0 encap frame-relay ! inter ser 0.1 point ip ad 192.168.1.1 255.255.255.252 frame-relay map interface-dlci 100 Same for R2. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72425&t=72403 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Multicasting [7:72403]
I think you said that you see traffic going out one tunnel, but not coming in on the other end of the tunnel. How are you checking that? What does your mroute cache look like for the group in question? Does it list the tunnel interface as an outgoing interface? On the end that isn't receiving anything, is it configured for the RP? Does it find the RP successfully? Does it know about the group in it's mroute cache? Fred Reimer - CCNA Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 NOTICE; This email contains confidential or proprietary information which may be legally privileged. It is intended only for the named recipient(s). If an addressing or transmission error has misdirected the email, please notify the author by replying to this message. If you are not the named recipient, you are not authorized to use, disclose, distribute, copy, print or rely on this email, and should immediately delete it from your computer. -Original Message- From: alaerte Vidali [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 16, 2003 3:55 PM To: [EMAIL PROTECTED] Subject: RE: Multicasting [7:72403] I have configured it same time ago; the serial link was frame relay. But I used point-to-point subinterface Something like that: R1 interface tunnel 0 ip address 172.16.1.1 255.255.255.252 ip pim sparse-dense-mode tunnel source 192.168.1.1 tunnel destination 192.168.1.2 ! inter ser 0 encap frame-relay ! inter ser 0.1 point ip ad 192.168.1.1 255.255.255.252 frame-relay map interface-dlci 100 Same for R2. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72437&t=72403 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multicasting [7:72403]
We are using dense mode. Havent tested the rest. No auto-rp & MSDP. Tunnel worked on pt-2-pt , but not when its not that way. Rgds - Original Message - From: Reimer, Fred To: [EMAIL PROTECTED] Sent: Wednesday, July 16, 2003 11:10 PM Subject: RE: Multicasting [7:72403] I've never configured it with a tunnel before, but conceptually it should be the same. What mode are you using? Sparse, Dense, Sparse-dense? Are you doing auto-rp? Using MSDP? Read the Cisco docs on their web site and it gives you a run-down on all of the different configuration methods. Fred Reimer - CCNA Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 NOTICE; This email contains confidential or proprietary information which may be legally privileged. It is intended only for the named recipient(s). If an addressing or transmission error has misdirected the email, please notify the author by replying to this message. If you are not the named recipient, you are not authorized to use, disclose, distribute, copy, print or rely on this email, and should immediately delete it from your computer. -Original Message- From: MR [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 16, 2003 12:23 PM To: [EMAIL PROTECTED] Subject: Multicasting [7:72403] Hi, This is on multicasting. We are trying to setup a muticasted n/w on GRE tunnel with mutilple transit routers. We have enabled muticast only in the end routers i.e tunnel source/destination routers. IGMP too has been enabled with a group being formed. Though we were able to successfully carry out multicasting with tunnel on a serial link , we have not been able to when its not a point to point link. Could observe that there is traffic in the tunnel on the source side , but nil at the other end. On the configuration side, we enabled PIM/IGMP on tunnel interface and other interfaces. Could anyone tell me what should the ideal configuration be. Please let me know incase you need more info. Rgds Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72457&t=72403 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multicasting [7:72403]
Thanks for your config. But would be ideal if you can send me a config when there is no pt-2-pt link. Rgds - Original Message - From: alaerte Vidali To: [EMAIL PROTECTED] Sent: Thursday, July 17, 2003 1:25 AM Subject: RE: Multicasting [7:72403] I have configured it same time ago; the serial link was frame relay. But I used point-to-point subinterface Something like that: R1 interface tunnel 0 ip address 172.16.1.1 255.255.255.252 ip pim sparse-dense-mode tunnel source 192.168.1.1 tunnel destination 192.168.1.2 ! inter ser 0 encap frame-relay ! inter ser 0.1 point ip ad 192.168.1.1 255.255.255.252 frame-relay map interface-dlci 100 Same for R2. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72458&t=72403 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multicasting [7:72403]
At the source end , if i observed traffic on tunnel, it was 1.5mb . But at the other end , it was zero.There was no incoming traffic. As i said earlier , its not a point to point connection ans involves multiple transit routers on the way. R1 --- SP1 ---SP2---R2 TSTD SP-Service Provider TS- Tunnel Source TD-Tunnel Dest. At SP1 , we observed there was traffic on their serial interface with R1. Now multicast is not enabled in any SP router. Its enabled only in R1 & R2. Should we be enabling it. As it was a public n/w we couldnt. Also there was no RP configured in R1 & R2. Just enabled multicast with IGMP group specified. We enabled PIM /IGMP in both tunnel as well as serial interfaces of R1&R2. R1 Config- ip multicast-routing interface Tunnel0 ip address 172.16.1.2 255.255.255.252 ip pim dense-mode ip igmp join-group 224.1.1.1 tunnel source a.b.c.d tunnel destination w.x.y.z interface Serial0 ip address a.b.c.d 255.255.255.252 ip pim dense-mode ip igmp join-group 224.1.1.1. R2 Config- ip multicast-routing interface Tunnel0 ip address 172.16.1.1 255.255.255.252 ip pim dense-mode ip igmp join-group 224.1.1.1 tunnel source w.x.y.z tunnel destination a.b.c.d interface Serial0 ip address w.x.y.z 255.255.255.252 ip pim dense-mode ip igmp join-group 224.1.1.1. Please do revert back to me for more info. Rgds - Original Message - From: Reimer, Fred To: [EMAIL PROTECTED] Sent: Thursday, July 17, 2003 3:59 AM Subject: RE: Multicasting [7:72403] I think you said that you see traffic going out one tunnel, but not coming in on the other end of the tunnel. How are you checking that? What does your mroute cache look like for the group in question? Does it list the tunnel interface as an outgoing interface? On the end that isn't receiving anything, is it configured for the RP? Does it find the RP successfully? Does it know about the group in it's mroute cache? Fred Reimer - CCNA Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 NOTICE; This email contains confidential or proprietary information which may be legally privileged. It is intended only for the named recipient(s). If an addressing or transmission error has misdirected the email, please notify the author by replying to this message. If you are not the named recipient, you are not authorized to use, disclose, distribute, copy, print or rely on this email, and should immediately delete it from your computer. -Original Message- From: alaerte Vidali [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 16, 2003 3:55 PM To: [EMAIL PROTECTED] Subject: RE: Multicasting [7:72403] I have configured it same time ago; the serial link was frame relay. But I used point-to-point subinterface Something like that: R1 interface tunnel 0 ip address 172.16.1.1 255.255.255.252 ip pim sparse-dense-mode tunnel source 192.168.1.1 tunnel destination 192.168.1.2 ! inter ser 0 encap frame-relay ! inter ser 0.1 point ip ad 192.168.1.1 255.255.255.252 frame-relay map interface-dlci 100 Same for R2. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72460&t=72403 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multicasting [7:72403]
Not that this will solve your problem, but why do you need IGMP between two routers? Thanks, Zsombor At 08:22 AM 7/17/2003 +, MR wrote: >At the source end , if i observed traffic on tunnel, it was 1.5mb . But at >the >other end , it was zero.There was no incoming traffic. As i said earlier , >its not a point to point connection ans involves multiple transit routers on >the way. > >R1 --- SP1 ---SP2---R2 > TSTD > >SP-Service Provider >TS- Tunnel Source >TD-Tunnel Dest. > >At SP1 , we observed there was traffic on their serial interface with R1. Now >multicast is not enabled in any SP router. Its enabled only in R1 & R2. >Should >we be enabling it. As it was a public n/w we couldnt. > >Also there was no RP configured in R1 & R2. Just enabled multicast with IGMP >group specified. We enabled PIM /IGMP in both tunnel as well as serial >interfaces of R1&R2. > >R1 Config- >ip multicast-routing >interface Tunnel0 > ip address 172.16.1.2 255.255.255.252 > ip pim dense-mode > ip igmp join-group 224.1.1.1 > tunnel source a.b.c.d > tunnel destination w.x.y.z > >interface Serial0 > ip address a.b.c.d 255.255.255.252 > ip pim dense-mode > ip igmp join-group 224.1.1.1. > >R2 Config- >ip multicast-routing >interface Tunnel0 > ip address 172.16.1.1 255.255.255.252 > ip pim dense-mode > ip igmp join-group 224.1.1.1 > tunnel source w.x.y.z > tunnel destination a.b.c.d > >interface Serial0 > ip address w.x.y.z 255.255.255.252 > ip pim dense-mode > ip igmp join-group 224.1.1.1. > > >Please do revert back to me for more info. > >Rgds > > - Original Message - > From: Reimer, Fred > To: [EMAIL PROTECTED] > Sent: Thursday, July 17, 2003 3:59 AM > Subject: RE: Multicasting [7:72403] > > > I think you said that you see traffic going out one tunnel, but not coming > in on the other end of the tunnel. How are you checking that? What does > your mroute cache look like for the group in question? Does it list the > tunnel interface as an outgoing interface? On the end that isn't receiving > anything, is it configured for the RP? Does it find the RP successfully? > Does it know about the group in it's mroute cache? > > Fred Reimer - CCNA > > > Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 > Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 > > > NOTICE; This email contains confidential or proprietary information which > may be legally privileged. It is intended only for the named recipient(s). > If an addressing or transmission error has misdirected the email, please > notify the author by replying to this message. If you are not the named > recipient, you are not authorized to use, disclose, distribute, copy, print > or rely on this email, and should immediately delete it from your computer. > > > -Original Message- > From: alaerte Vidali [mailto:[EMAIL PROTECTED] > Sent: Wednesday, July 16, 2003 3:55 PM > To: [EMAIL PROTECTED] > Subject: RE: Multicasting [7:72403] > > I have configured it same time ago; the serial link was frame relay. But I > used point-to-point subinterface > > Something like that: > > R1 > > interface tunnel 0 > ip address 172.16.1.1 255.255.255.252 > ip pim sparse-dense-mode > tunnel source 192.168.1.1 > tunnel destination 192.168.1.2 > ! > inter ser 0 > encap frame-relay > ! > inter ser 0.1 point > ip ad 192.168.1.1 255.255.255.252 > frame-relay map interface-dlci 100 > > > Same for R2. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72476&t=72403 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Multicasting [7:72403]
It seems nobody has really answered this. To begin with, I agree that you do not need IGMP on the tunnels, only on Ethernet ports where there are possible receivers of the mcast traffic. In addition, it is not necessary that your SP runs mcast on his router since you are using GRE tunnels. PIM-DM uses SPTs so the moment it starts receiving (S,G) traffic from a mcast source it will send out the traffic to all interfaces on its outgoing interface list. For PIM-DM that is all interfaces that have multicast enabled and have a PIM-DM neighbour or a mcast receiver. So the first thing you need to do is check if you can see your PIM-DM neighbour at the other end of the SP cloud with the "show ip pim neighbor" command. Please keep us posted on how this progresses. Kind regards George Murage -Original Message- From: Doan Nguyen [mailto:[EMAIL PROTECTED] Sent: Thursday, August 07, 2003 11:44 PM To: [EMAIL PROTECTED] Subject: Re: Multicasting [7:72403] If you're using PIM Dense-Sparse mode you will need to designate an RP router because the DR needs to know where to send the (*,G) to join and the source DR needs to register the SA messages to the RP. What you can do for this case is R1-SP1---SP2-R2 make either R1 or R2 the RP. Assign a static RP-to-group mapping to the router that is not the RP to point to the one that is assigned the RP. If you're using static RP mapping then all you need on your tunnel interface is PIM-SM. **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73719&t=72403 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Re: Multicasting [7:72403]
If you're using PIM Dense-Sparse mode you will need to designate an RP router because the DR needs to know where to send the (*,G) to join and the source DR needs to register the SA messages to the RP. What you can do for this case is R1-SP1---SP2-R2 make either R1 or R2 the RP. Assign a static RP-to-group mapping to the router that is not the RP to point to the one that is assigned the RP. If you're using static RP mapping then all you need on your tunnel interface is PIM-SM. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73687&t=72403 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
