Problems configuring IPv4 multicast

[ruizzito]

hi.

i´m tring to configure a simple ipv4 scenario using cisco 2600XM series routers, but it is not working.

The scenario are preset bellow:

10.0.1.2 10.0.1.1<->11.0.1.1 11.0.1.2<->12.0.1.1 12.0.1.2
Host1--------------eth0-R1-eth1----HUB-----eth1-R2-eth0----------Host2


The cliente and server streaming that i´m using is VLC.
the VLC are streaming at 239.1.1.239 address.
Using netsh int ip sh join,and Ethereal, i verify that host1 and host2 has join de 239.1.1.239 address
The firewall is disabled on host (with windows xp sp2)
I have end-to-end connectivity -> in Host1 i can sucessefully ping 12.0.1.2 address
I configured PIM-SM on cisco routers
The 10.0.1.1 is the RP.

Can any one help me? thanks


bellow the sh run of R1 and R2; and some extra information
R1#sh running-configing

Current configuration : 975 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot system flash c2600-i-mz.123-3g.bin
boot-end-marker
!
!
!
resource policy
!
no aaa new-model
no network-clock-participate slot 1
no network-clock-participate wic 0
!
!
ip cef
ip multicast-routing
ipv6 unicast-routing
!
interface FastEthernet0/0
ip address 10.0.1.1 255.0.0.0
ip pim sparse-mode
duplex auto
speed auto
ipv6 address 2000:A::1/64
ipv6 enable
!
interface FastEthernet0/1
ip address 11.0.1.1 255.0.0.0
ip pim sparse-mode
duplex auto
speed auto
!
ip route 0.0.0.0 0.0.0.0 FastEthernet0/1
no ip http server
no ip http secure-server
ip pim rp-address 10.0.1.1
!
ipv6 route ::/0 FastEthernet0/1
!
control-plane
!
line con 0
logging synchronous
line aux 0
line vty 0 4
login
!
!
end
R1#
*********************
R1#sh ip multicast
Multicast Routing: enabled
Multicast Multipath: disabled
Multicast Route limit: No limit
Multicast Triggered RPF check: enabled
Multicast Fallback group mode: Sparse
R1#
*********************
R1#sh ip multicast interface
FastEthernet0/0 is up, line protocol is up
Internet address is 10.0.1.1/8
Multicast routing: enabled
Multicast switching: fast
Multicast packets in/out: 2/0
Multicast TTL threshold: 0
Multicast Tagswitching: disabled
FastEthernet0/1 is up, line protocol is up
Internet address is 11.0.1.1/8
Multicast routing: enabled
Multicast switching: fast
Multicast packets in/out: 0/0
Multicast TTL threshold: 0
Multicast Tagswitching: disabled
R1#
*********************
R1#sh ip pim interface

Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
10.0.1.1 FastEthernet0/0 v2/S 0 30 1 10.0.1.1
11.0.1.1 FastEthernet0/1 v2/S 1 30 1 11.0.1.2
R1#
*********************
R1#sh ver
Cisco IOS Software, C2600 Software (C2600-ADVENTERPRISEK9-M), Version 12.4(5), R
ELEASE SOFTWARE (fc3)
.....
*********************
R1#sh ip pim rp
Group: 224.0.1.40, RP: 10.0.1.1, next RP-reachable in 00:00:41
Group: 239.1.1.239, RP: 10.0.1.1, next RP-reachable in 00:00:41
Group: 239.255.255.250, RP: 10.0.1.1, next RP-reachable in 00:00:41
R1#


***********************
***********************
R2#sh run
Building configuration...

Current configuration : 1091 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot system tftp c2600-adventerprisek9-mz.124-5.bin 192.168.0.2
boot system flash c2600-advipservicesk9-mz.123-11.T3.bin
boot-end-marker
!
!
memory-size iomem 10
no network-clock-participate slot 1
no network-clock-participate wic 0
no aaa new-m
ip subnet-zero
!
!
!
!
ip cef
ip multicast-routing
ip ips po max-events 100
ipv6 unicast-routing
no ftp-server write-enable
!
!
interface FastEthernet0/0
ip address 12.0.1.1 255.0.0.0
ip pim sparse-mode
duplex auto
speed auto
ipv6 address 2000:C::1/64
ipv6 enable
!
interface FastEthernet0/1
ip address 11.0.1.2 255.0.0.0
ip pim sparse-mode
duplex auto
speed auto
!
ip classless
ip route 0.0.0.0 0.0.0.0 FastEthernet0/1
!
!
ip http server
no ip http secure-server
ip pim rp-address 10.0.1.1
ip pim rp-address 10.0.1.1
ipv6 route ::/0 FastEthernet0/1
!
!
!
control-plane
!
!
!
line con 0
logging synchronous
line aux 0
line vty 0 4
login
!
!
end

R2#
**************************
R2#sh ip mu
R2#sh ip multicast
Multicast Routing: enabled
Multicast Multipath: disabled
Multicast Route limit: No limit
Multicast Triggered RPF check: enabled
Multicast Fallback group mode: Sparse
R2#
**************************
R2#sh version
Cisco IOS Software, C2600 Software (C2600-ADVIPSERVICESK9-M), Version 12.3(11)T3
, RELEASE SOFTWARE (fc4)

R2#sh ip pim rp
Group: 224.0.1.40, RP: 10.0.1.1, uptime 01:49:03, expires never
Group: 239.1.1.239, RP: 10.0.1.1, uptime 01:49:03, expires never
Group: 239.255.255.250, RP: 10.0.1.1, uptime 01:49:03, expires never
**************************
R2#sh ip pim int

Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prior
11.0.1.2 FastEthernet0/1 v2/S 1 30 1 11.0.1.2
12.0.1.1 FastEthernet0/0 v2/S 0 30 1 12.0.1.1
R2#

 

[ADB100]

VLC by default transmits with a TTL of 1 so won't get past the first hop router. The command line for VLC should let you change the TTL for the multicast stream BUT I have never had any luck changing it on a per-stream basis. You can change the default TTL though: Go to Settings, Preferences, check the 'Advanced Option' box, expand Stream output on the left and select General. The last option is the Time To Live and is set to 1 by default, change this to something like 16.

Alternatively use MCAST.EXE or MPING.EXE to test multicast....

HTH

Andy

 

[ruizzito]

I configured VLC streaming with 3 on TTL. ´
so i think the problem isn´t there.

Do you have more suggestion?

thanks, any way

 

[ADB100]

On the remote router where the client is you can use 'show ip igmp groups' to see what groups have been joined by attached devices. If your client has sent an IGMP membership report for 239.1.1.239 then it should appear in the table. You should also try 'show ip mroute 239.1.1.239' to ensure you have S,G and *,G entries for the 239.1.1.239 group.

I would put VLC to the side and use MCAST or MPING to ensure your multicast routing is working.

http://research.microsoft.com/barc/mbone/mping.aspx

HTH

Andy