Re: Multicast-Helper MAP

hi,

R3---F0/0.34-------R4---F0/0.14---------R1----F0/0.12-------R2

R4 and R1 is running multicast, R3 and R2 is running RIP ver 1

same happening to me, R2 is not receiving Rip updates generated by R3,
please help!!!!

configuration is given below.

R1
interface FastEthernet0/0.14
 encapsulation dot1Q 14
 ip address 10.14.14.1 255.255.255.0
 ip pim dense-mode
 ip multicast helper-map 224.1.1.1 10.12.12.255 101
ip forward-protocol udp rip
!
access-list 101 permit udp any any eq rip log

interface FastEthernet0/0.12
 encapsulation dot1Q 12
 ip address 10.12.12.1 255.255.255.0
 ip directed-broadcast
 ip pim dense-mode

R4
interface FastEthernet0/0.34
 encapsulation dot1Q 34
 ip address 10.34.34.4 255.255.255.0
 ip pim dense-mode
 ip multicast helper-map broadcast 224.1.1.1 101 ttl 4
!
access-list 101 permit udp any any eq rip log

On Thu, Oct 7, 2010 at 10:15 PM, mohmmad imran <imran_mohmmad_at_yahoo.com>wrote:

> Hi Experts,
>
> I am trying to understand Mutlicast-helper map:-
>
> Fa0/0--R3--S0/1-----S0/0--R5--S0/1-------S0/0--R2--Fa0/0
>
> Pim is enabled on between serial interface along with R2 Fa0/0.
> R2 Fa0/0 has joined a IGMP group 224.1.1.1
> I can ping it from R3
>
>
> Host Connected to R3 Fa0/0 supports only broadcast, if I want to use UDP
> port 2000 to support receive and send multicast traffic what can we do.
>
> I tried to break it flow wise:-
>
> 1)destination as Broadcast from R3 Fa0/0 connected hosts: -
> 2)destination as multicast from R2 Fa0/0 connected hosts: -
>
> for case 1:-
> we can Convert the broadcast traffic into multicast on R3 ingress interface
> (fa0/0) and then convert it into back to Multicast on R2 (Ingress interface
> Se0/0).
>
> R3#
> Int fa 0/0
> ip address 192.168.3.3 255.255.255.0
> ip multicast helper-map broadcast 224.1.1.1 100
> !
> ip forward-protocol udp 2000
> access-list 100 permit udp any any eq 2000
>
> R2#
> Int se0/0
> En ppp
> Ip address 192.168.5.2 255.255.255.252
> Ip pim sparse-mode
> ip multicast helper-map 224.1.2.3 173.20.18.255 100
> !
> ip forward-protocol udp 2000
> access-list 100 permit udp any any eq 2000
>
> int fa 0/0
> ip directed-broadcast
>
> From above the config broadcast traffic send by host will be delivered to
> Host connected on R2 Fa0/0 as broadcast.
>
> I am not able to figure out what can be done to take the multicast traffic
> from R2 connected host and delivered it as broadcast to R3 connected hosts.
>
> Please let me know if its possible, if yes how can I configure that.
>
>
> - Imran
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>

-- 
Regards,
Masroor Ali
P Please don't print this e-mail unless you really need to.
Blogs and organic groups at http://www.ccie.net