Nuddsj
asked on
DHCP / seperate VLAN
Hi
After reading some posts here what I want to do seems to be possible but if someone could confirm and if it is possibe provide some pointers that would be great.
So basically I want to create a new VLAN so that I can move IP phones off my main network to this seperate VLAN. I have x1 2008 R2 server running as DHCP, with one NIC on the main network.
I have HP layer 3 switches, so I created a new VLAN as shown below;
vlan 100
name "VOIP_VLAN"
ip helper-address (IP of DHCP server)
ip address 192.168.50.1 255.255.255.0
tagged 36
exit
vlan 1
name "DEFAULT_VLAN"
untagged 1-35,37-A4
ip address XXX.XXX.XXX.XXX 255.255.255.0
no untagged 36
ip igmp
exit
I have created a new scope on the DHCP server, issuing out 192.168.50.100-200, however when I plug my laptop into port 36 I dont get a DHCP address
Any help would be great
Thanks
After reading some posts here what I want to do seems to be possible but if someone could confirm and if it is possibe provide some pointers that would be great.
So basically I want to create a new VLAN so that I can move IP phones off my main network to this seperate VLAN. I have x1 2008 R2 server running as DHCP, with one NIC on the main network.
I have HP layer 3 switches, so I created a new VLAN as shown below;
vlan 100
name "VOIP_VLAN"
ip helper-address (IP of DHCP server)
ip address 192.168.50.1 255.255.255.0
tagged 36
exit
vlan 1
name "DEFAULT_VLAN"
untagged 1-35,37-A4
ip address XXX.XXX.XXX.XXX 255.255.255.0
no untagged 36
ip igmp
exit
I have created a new scope on the DHCP server, issuing out 192.168.50.100-200, however when I plug my laptop into port 36 I dont get a DHCP address
Any help would be great
Thanks
It sounds like you need to make sure you have allowed the IP of your DHCP server to be a DHCP relay in your VLAN. You will do this on the switch. Let me know if you need more info on how to do this.
Sorry, I am now seeing where you have the ip helper address listed. If you have physical connectivity to the DHCP server from vlan 100, then I would double check the scope and make sure that it is correct. Maybe try to disable it and enable it.
The only time I can remember having a problem when I set it up as you have described is when the scope was not working correctly and I fixed it from the DHCP server.
The only time I can remember having a problem when I set it up as you have described is when the scope was not working correctly and I fixed it from the DHCP server.
Make sure you can ping both ways; from the DHCP server to 192.168.50.1 (switch) and from 192.168.50.1 (switch) to the DHCP server.
ASKER
Hi
On the switch I can ping the DHCP server, though thew switch is also on the main VLAN so would I somehow need to ping from the new vlan on the switch
Though the DHCP server I cant ping the 192.168.50.1 which I gave the VOIP_VLAN
On the switch I can ping the DHCP server, though thew switch is also on the main VLAN so would I somehow need to ping from the new vlan on the switch
Though the DHCP server I cant ping the 192.168.50.1 which I gave the VOIP_VLAN
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ASKER
Hi
I guess that is the problem.
Alternative option if easier, should I just add a second NIC to the DHCP give that NIC a IP on the same subnet as the VOIP_VLAN and patch into a port of the switch that I have added to that VLAN?
I guess that is the problem.
Alternative option if easier, should I just add a second NIC to the DHCP give that NIC a IP on the same subnet as the VOIP_VLAN and patch into a port of the switch that I have added to that VLAN?
ASKER
I think I have just missed a step. Just re-checked the switch and under IP configuration, "IP routing is disabled"...
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