03-04-2013 07:19 AM - edited 03-07-2019 12:02 PM
Hi dears
I have one server which run some application for wireless user. this server forward multicast packet to wireless user. server and wlc physically connect to cisco 3750 switch.i want the server forward the multicast packet to wireless users.
server access vlan 4.
wlc controller have 2 vlan: 90 and 110.
and wireless user some of vlan 90 and some of vlan 110.
i enable igmp snooping on wireless controller. and enable globally command but it is not working.which additional configuration i need on cisco switch.
Switch(config)# ip igmp snooping
please help me.
03-04-2013 07:30 AM
Please refer to the documentation on how to configure 'multicast routing' on a 3750 switch:
03-04-2013 07:47 AM
Hi thank you reply for me. is it possibly provide me a certain configuration for my network topology.
thank again
03-04-2013 08:01 AM
Switch(config)# ip multicast-routing distributed
Switch(config)# interface vlan 90
Switch(config-if)# ip pim sparse-dense-mode
Switch(config)# interface vlan 110
Switch(config-if)# ip pim sparse-dense-mode
03-04-2013 08:07 AM
thank you very much
do i need ip igmp snooping command on global mode?
do i need some config on server port on sw?
03-04-2013 08:08 AM
snooping is enabled by default on cisco switches.
no config is needed at the physical port facing the server since the config is applied to the vlan associated to the switchport.
03-04-2013 04:30 PM
Edison offered some great baseline configuration for multicast routing on one router, however, you should really learn a bit about multicast and IGMP before doing any sort of multicast deployment. It is one of those protocols that can just kill your network.
03-04-2013 10:18 PM
İ did it but it is not working. i describe the topology.
i have some application running one pc which is forwarding multicast packet. and this pc connected wireless network with vlan 90. i want to vlan 90 and vlan 110 wireless users can use this application.
i enable igmp snooping on wireless controller.
int the same vlan which is vlan 90 the wireless user can used this application but the vlan 110 wireless user can not used.
i did as you wrote me but it is not help me.
can i do some config wlc?
what i need to do on swicth?
03-04-2013 10:34 PM
Hello Teymur,
You may find the following link about multicast and WLC interesting:
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00807cc10d.shtml
HTH,
Alex
03-05-2013 02:11 AM
this guide is not help me.
i also do pim on AP vlan, mgmt vlan but the problem is same. the vlan 90 is working but vlan 110 is not working.
03-05-2013 04:18 AM
CoreSwitch#show ip igmp snooping vlan 90
Global IGMP Snooping configuration:
-----------------------------------
IGMP snooping : Enabled
IGMPv3 snooping (minimal) : Enabled
Report suppression : Enabled
TCN solicit query : Disabled
TCN flood query count : 2
Last Member Query Interval : 1000
Vlan 90:
--------
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
CoreSwitch#show ip igmp interface vlan 110
Vlan110 is up, line protocol is up
Internet address is 172.30.110.1/24
IGMP is enabled on interface
Current IGMP host version is 2
Current IGMP router version is 2
IGMP query interval is 60 seconds
IGMP querier timeout is 120 seconds
IGMP max query response time is 10 seconds
Last member query count is 2
Last member query response interval is 1000 ms
Inbound IGMP access group is not set
IGMP activity: 2 joins, 0 leaves
Multicast routing is enabled on interface
Multicast TTL threshold is 0
Multicast designated router (DR) is 172.30.110.1 (this system)
IGMP querying router is 172.30.110.1 (this system)
Multicast groups joined by this system (number of users):
224.0.1.40(1) 239.255.1.1(1)
CoreSwitch#
CoreSwitch#show ip igmp snooping mrouter
Vlan ports
---- -----
90 Router
110 Router
125 Router
CoreSwitch#
CoreSwitch#show ip igmp membership
Flags: A - aggregate, T - tracked
L - Local, S - static, V - virtual, R - Reported through v3
I - v3lite, U - Urd, M - SSM (S,G) channel
1,2,3 - The version of IGMP, the group is in
Channel/Group-Flags:
/ - Filtering entry (Exclude mode (S,G), Include mode (G))
Reporter:
Channel/Group Reporter Uptime Exp. Flags Interface
*,239.255.1.1 172.30.110.1 00:18:05 02:04 2LA Vl110
*,239.255.1.1 172.30.125.217 00:18:44 01:59 2A Vl125
*,239.255.255.250 172.30.90.121 00:03:13 01:58 2A Vl90
*,239.255.255.246 172.30.90.121 00:00:43 02:16 2A Vl90
*,224.0.1.40 172.30.110.1 00:19:03 02:04 2LA Vl110
CoreSwitch#
CoreSwitch#show ip igmp groups
IGMP Connected Group Membership
Group Address Interface Uptime Expires Last Reporter
239.255.1.1 Vlan110 00:19:38 00:02:29 172.30.110.1
239.255.1.1 Vlan125 00:20:17 00:02:27 172.30.125.217
239.255.255.250 Vlan90 00:04:46 00:02:29 172.30.90.121
224.0.1.40 Vlan110 00:20:36 00:02:33 172.30.110.1
i configurated 239.255.1.1 on wlc.
and my confuguration on sw:
interface Vlan90
description Wireless
ip address 172.30.90.1 255.255.255.0
ip pim sparse-dense-mode
end
interface Vlan110(voip wireless)
ip address 172.30.110.1 255.255.255.0
ip pim sparse-dense-mode
ip igmp join-group 239.255.1.1
end
interface Vlan125 (AP vlan)
ip address 172.30.125.1 255.255.255.0
ip pim sparse-dense-mode
end
i could not solve the problem.
03-05-2013 04:20 AM
CoreSwitch#ping 239.255.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.255.1.1, timeout is 2 seconds:
Reply to request 0 from 172.30.110.1, 9 ms
Reply to request 0 from 172.30.125.1, 9 ms
03-05-2013 09:39 AM
is this configuration correct?
03-05-2013 10:54 AM
What is your wireless controller version?
03-05-2013 08:23 PM
7.0
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