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тАО09-19-2006 10:17 AM
тАО09-19-2006 10:17 AM
IGMP traffic from one VLAN to another
I'm trying to set up a multicast image server for setting up new PCs in our network. The image server (Novell ZenWorks) is on one VLAN (VLAN 1)and the clients are on another (VLAN 2). This is also across a switch as the servers are on a 2848 and the clients are on a 2824. Both VLANS are configured on the two switches which are directly connected.
IGMP is not enabled on the 2848 but if I've read the manual right IGMP traffic will go to all ports in VLAN 1 by default.
The 2824 has two ports on it that are trunked in VLAN 1. IGMP is enabled on this switch for both VLANs. So I need to forward the IGMP traffic from VLAN1 to some ports on the 2824 that are in VLAN 2. I've been looking at the 2600-2800-etc Advanced Traffic Manual but haven't figured out this scenario. Could someone help me with this?
thanks
Andrew
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тАО09-19-2006 12:36 PM
тАО09-19-2006 12:36 PM
Re: IGMP traffic from one VLAN to another
To route multicast traffic you would need a switch capable of IP multicast routing such as the 5300's.
Matt
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тАО09-20-2006 05:43 AM
тАО09-20-2006 05:43 AM
Re: IGMP traffic from one VLAN to another
Okay, thank you for the reply. I do have a 5308 that's already doing ip routing. So would it be matter of enabling UDP Broadcast Forwarding for whatever UDP ports the image server is using (going from VLAN1 to VLAN2)?
Andrew
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тАО09-20-2006 07:04 AM
тАО09-20-2006 07:04 AM
Re: IGMP traffic from one VLAN to another
1. Enable 'ip multicast routing'
2. Enable 'ip igmp' for each VLAN
3. Enable PIM for those VLANs.
With any luck that's all you should need.
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тАО09-20-2006 11:43 AM
тАО09-20-2006 11:43 AM
Re: IGMP traffic from one VLAN to another
I'm not that lucky. :) Ah well, here's how I have things set up:
5308 - IP Routing (global)
IGMP Routing (global)
VLAN1 ip igmp
ip pim
VLAN2 ip igmp
ip pim
2848
Default Gateway is the 5308
VLAN1 ip igmp
VLAN2 ip igmp
2824
Default Gateway is the 5308
VLAN1 ip igmp
VLAN2 ip igmp
The Multicast clients still don't seem to see the server. If I set up a multicast image session and run "sh ip igmp" on all the switches then I see the image session IP in both VLANs on the 5308 and 2848 but only on VLAN2 on the 2824 which is where the clients are. Is that how things should be?
thanks,
Andrew
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тАО09-22-2006 04:53 AM
тАО09-22-2006 04:53 AM