12-18-2011 07:31 AM - edited 03-07-2019 03:57 AM
All,
Can you please help with the following
We plan to implement multicasting on our network where the sourec and destination are going to be in different vlans.
I have a test 3750 switch, Layer two multicast works fine, when I place the source and destiantion in different VLan it fails
ip routing
!
ip multicast-routing distributed
interface Vlan3 (destination)
ip address 10.2.2.1 255.255.255.0
ip pim dense-mode
end
!
interface Vlan4 (source for mulitcast VLC)
ip address 10.3.3.1 255.255.255.0
ip pim dense-mode
end
Application used for testing = VLC (239.255.100.100)
Sh ip mroute
(*, 239.255.255.250), 00:44:34/00:02:24, RP 0.0.0.0, flags: DC
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan3, Forward/Dense, 00:07:56/00:00:00
Vlan4, Forward/Dense, 00:44:34/00:00:00
(*, 239.255.100.100), 00:44:37/00:02:48, RP 0.0.0.0, flags: DC
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan3, Forward/Dense, 00:00:11/00:00:00
(*, 224.0.1.40), 00:44:38/00:02:17, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan4, Forward/Dense, 00:44:38/00:00:00
Any help is much appreciated
Kind Regards,
Zee
12-18-2011 07:41 AM
Hi Zee,
Can you also turn on ip igmp snooping for both vlans and test again?
ip igmp snooping vlan 3
ip igmp snooping vlan 4
HTH
12-18-2011 07:45 AM
Hi Reza,
IGMP snooping is enabled on both vlan vlans
Vlan 3:
--------
IGMP snooping : Enabled
IGMPv2 immediate leave : Disabled
Explicit host tracking : Enabled
Multicast router learning mode : pim-dvmrp (not sure if this is correct)
Last Member Query Interval : 1000
CGMP interoperability mode : IGMP_ONLY
Vlan 4:
--------
IGMP snooping : Enabled
IGMPv2 immediate leave : Disabled
Explicit host tracking : Enabled
Multicast router learning mode : pim-dvmrp
Last Member Query Interval : 1000
CGMP interoperability mode : IGMP_ONLY
Kind Regards,
Zee
12-18-2011 08:36 AM
Hi Zee,
When you configure VLC, there is an area where you have to specify the TTL, make sure that number is 2 or 3 and not 1.
than test again
HTH
12-18-2011 08:42 AM
I have tried using TTL as 2 and 3 but no luck please see screenn shot for details
Kind Regards,
Zee
12-18-2011 10:01 AM
Ok, this look good.
What license level do you installed on this switch
sh lice
12-18-2011 10:14 AM
forgot to add this to my previous post but
To run layer-3 multicast, you need IP services license
IP Services: Includes IP Base and enables advanced IPv4/IPv6 Layer 3 routing such as EIGRP, Open Shortest Path First (OSPF), WCCP, VRF-lite, PBR, and IPv4 multicast routing.
HTH
12-19-2011 01:33 AM
Hi Reza,
I am using following image its ip services
System image file is "flash:/c3750-ipservicesk9-mz.122-25.SEB4.bin"
following output for sh license
Switch#sh lic?
% Unrecognized command
Switch#sh lic
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