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noclav

Running out of IPs on Class C Subnet. SuperScope
I have a class C subnet 192.168.18.0/24 and I would like to know the best way to add more ips.

My setup is as followes;
1 - sonicwall firewall
1- 2012 Server Standard Hyper V Host with 2 Vms 1 2012 std server and 1 2008 server
1 - 24 Port Cisco managed switch (Old)
2 - 24 port cheap unmanaged switches.
25 Voip Phones
35 Access Points Ubiquity
 I was reading about SuperScopes on the DHCP  server. So i setup a test environment with the same sonicwall router and setup two scopes  192.168.18.0/24 and 192.168.19.0/24 the sonicwall is 192.168.18.1. If i create a reservation for the .19.0 subnet the computer wont get out on the internet. I dont know what to setup on the sonicwall to get this to work.

Other option was creating Vlans but i would have to replace some of the switches. Can this be done with superscopes or should i be better setting up vlans?

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Update: I setup the 2 scopes on the dhcp server then created the superscope to include both scopes. I then setup x4 on my sonicwall to a static Ip assignment and set it to ip of 192.168.19.1 On the second scope for the 192.168.19.1/24 subnet i setup the scope options of router to be the 192.168.19.1. Lastly i setup a route on the sonicwall to have Source = X4 Subnet Destination = X4 Subnet , Service = Any, Gateway = X1 Default gateway and that seems to work. Is this an ok way to do this?

Avatar of CompProbSolvCompProbSolv🇺🇸

I believe that is all correct.  To test, make sure that you can communicate in both directions between the 192.168.18.x subnet and the 192.168.19.x subnet and also between those subnets and the internet.

Avatar of CompProbSolvCompProbSolv🇺🇸

"35 Access Points Ubiquity"
I'm assuming that this is where you are getting the need for more IP addresses.  I'd make sure that the DHCP lease time is appropriate.

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Avatar of noclavnoclav

ASKER

i did test and they both communicate. If i want to create another scope for example for IP phones how do i setup so that the iphones subnet wont talk to the other subnets just need to get out to the internet. My goal is to create different subnets for Wifi, IP cameras, Voip Phones, and Wired computers.

Avatar of CompProbSolvCompProbSolv🇺🇸

I'm not very fluent with SonicWall so am unable to give you a detailed answer.  The key is that somewhere you have an access rule that says that 192.168.18.x and 192.168.19.x can  communicate with each other.  If you dropped that rule then they'd only be able to get to the internet.  That's the sort of thing you'd do with a new subnet for phones.

You also have the option of doing this with VLANs.  My knowledge there is also limited, but there are plenty of Experts here that know them well.

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the sonicwall is a TZ400. I have a cisco 2950 POE Switch , one 48 port POE Edge Switch from Ubiquity, and one cisco small business unmanaged switch. On the Ubiquity side i have 2 SSSIDs one for Guests (vlan 40) and other for Employees (Vlan 50). Both tagged with different VLan ids. I would like the phones to be on another vlan (Vlan 30)and the wired computers to be on the same vlan and employees.

So with the dumb switch should i connect all the wired computers to it and then uplink that to a port that has a vlan id for the employees on the  ubiquity switch. Will that technically make that nonmanaged switch all vlan 50 for employees

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Avatar of masnrockmasnrock🇺🇸

So with the dumb switch should i connect all the wired computers to it and then uplink that to a port that has a vlan id for the employees on the  ubiquity switch. Will that technically make that nonmanaged switch all vlan 50 for employees

If the incoming wire to the dumb switch is carrying traffic for VLAN 50 as untagged, then yes. Based on that type of response, it sounds like the VoIP phones are using separate outlets than the computers. Please correct me if I'm wrong.

Avatar of noclavnoclav

ASKER

sorry they share the same connection. I was going to setup a dhcp server on the sonicwall and assign ip by mac address.

Avatar of masnrockmasnrock🇺🇸

What type of phones and phone system are you using? Another method that would be used (assuming the phones stay in the office and aren't carried around all the time) would be to have the wire going to that dumb switch carry the traffic for both VLANs (employee VLAN untagged, phone VLAN tagged), have the phone configured to use the phone VLAN, then strip the tag before passing through the port going to the PC.

Feel free to try the approach you mentioned. Can't guarantee it'll work as intended though because the phone needs to know to connect to that VLAN just to be able to see the right DHCP server.

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How did this turn out?
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Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.