From: zorby@doglover.com
Date: Sun Nov 18 2007 - 21:44:24 ART
Hello!
I am trying to simulate the forward of broadcast traffic into multicast packets using the command "ip multicast helper-map", as the LAB8 of IE.
The network is the following:
R1 (e0/0) --- (f0/0) R2 (s0/1/0.1) <--FR--> (s0/1/0.1) R3 (fa0/0) --- (fa0/0) R4
CONFIGS:
-----------------------------------------------------------------------------------
***R1 - Sender Broadcast traffic via SAA:
!
rtr 1
rtr schedule 1 life forever start-time now
!
type udpEcho dest-ipaddr 255.255.255.255 dest-port 3434 control disable
timeout 1
frequency 1
!
***R2 - Receive broadcast and send into multicast packets to 224.2.2.2 group:
!
interface FastEthernet0/0
ip address 150.2.4.1 255.255.255.0
ip multicast helper-map broadcast 224.2.2.2 111
!
interface Serial0/1/0.1 point-to-point
ip address 4.4.24.4 255.255.255.0
ip pim dr-priority 0
ip pim sparse-mode
!
access-list 111 permit udp any any eq 3434
!
ip forward-protocol udp 3434
!
***R3 - Receive multicast traffic and send to broadcast address (fa0/0)
!
interface Serial0/1/0.1 point-to-point
ip address 4.4.24.2 255.255.255.0
ip pim sparse-mode
ip multicast helper-map 224.2.2.2 4.4.26.255 111
!
access-list 111 permit udp any any eq 3434
!
ip forward-protocol udp 3434
!
interface FastEthernet0/0
ip address 4.4.26.2 255.255.255.0
ip directed-broadcast
ip pim sparse-mode
!
----------------------------------------------------------------------------------
Verification on routers:
R1:
R1#sh rtr totals-statistics
Entry number: 1
Start Time Index: *04:25:25.046 UTC Mon Mar 1 1993
Age of statistics entry (seconds): 3034
Number of initiations: 3035
R2:
I can see the broadcast traffic on ethernet interface:
R2#debug ip packet detail 111
IP packet debugging is on (detailed) for access list 111
R2#
*Nov 18 19:53:21.187: IP: s=150.2.4.254 (FastEthernet0/0), d=255.255.255.255, len 44, rcvd 2
*Nov 18 19:53:21.187: UDP src=56958, dst=3434
*Nov 18 19:53:22.187: IP: s=150.2.4.254 (FastEthernet0/0), d=255.255.255.255, len 44, rcvd 2
*Nov 18 19:53:22.187: UDP src=49314, dst=3434
*Nov 18 19:53:23.187: IP: s=150.2.4.254 (FastEthernet0/0), d=255.255.255.255, len 44, rcvd 2
*Nov 18 19:53:23.187: UDP src=50778, dst=3434
*Nov 18 19:53:24.187: IP: s=150.2.4.254 (FastEthernet0/0), d=255.255.255.255, len 44, rcvd 2
*Nov 18 19:53:24.187: UDP src=57531, dst=3434
But When I try to see the multicast packets:
R2#debug ip mp
R2#debug ip mpacket
IP multicast packets debugging is on
R2#
R2#
R2#
Nothing happens at all...
R3:
R3#debug ip packet detail 111
IP packet debugging is on (detailed) for access list 111
R3#
Nothing happens too...
---------------------------------------------------------------------------------
Anybody has any idea about what is wrong? Brian, could you help me?
I read everything that I found about this, but i really don't know what is wrong...:
- Developing IP Multicast Networks - Chapter 16 - "Broadcast-Multicast Traffic Conversion"
- IEWB - LAB 8 - Version 4
- "ip multicast helper-map" command:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/himc_r/mlt_i1h.htm#wp1134745
Thanks for any help,
Zorby
This archive was generated by hypermail 2.1.4 : Sat Dec 01 2007 - 06:37:30 ART