To inherit DNS settings dynamically from the SonicWALL appliance’s DNS settings, click Inherit DNS Settings Dynamically from the SonicWALL’s DNS settings. To specify the DNS servers manually for this IP address, select Specify Manually and then type the IP address of your DNS Server in the DNS Server 1 field. Increasing the DHCP range for a SonicWall Pro 300. Ask Question. Up vote 1 down vote favorite. Given a LAN with default gateway of 10.5.1.1 and subnet of 255.255.0.0. The DHCP range is currently set in the range of 10.5.2.1 to 10.5.3.254. The 10.5.1.x range is reserved for static IP's.
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IP conflicts occur when two computers on a network have the same IP address. This can lead to problems when you are attempting to send data to one of those computers, and it may lead to one or both becoming disconnected from the network. Knowing how to troubleshoot IP conflicts through your SonicWALL device's menu can help you to keep your network clients connected and ensure that they only receive the data that they are supposed to receive.
- Configure your printer’s access to SonicWALL. Click the “Add” button and change the following: Configure the To and From zones to WLAN, label your service “Custom Port for Printing”, change the destination to “Printer”, set the schedule for “Always On” and leave any comments you feel are necessary.
- DHCP by MAC Reservations Only. If you exclude all pool range then new devices will not acquire IP address automatically. For reserverd address you can use IP address in the excluded range. For example if pool range is 192.168.1.0/24 then you can exclude all range by: ip dhcp-excluded address 192.168.1.0 192.168.1.255.
- To make a reservation for an IP address in the list, right click the IP address then select 'Add to Reservation'. If you need to make a reservation for an IP address that is not in the list of leases you can add it by clicking on 'Reservations' below the scope name, then select 'Action' and 'New Reservation' at the top of the ' DHCP ' tools window.
DHCP
Dynamic Host Control Protocol is a method of distributing IP addresses across a local network. It can be handled through a server, a router or a security device such as a SonicWALL firewall. In general, IP conflicts occur when a DHCP-providing device tries to assign a device with an IP address that has already been used. This is often because that address has already been assigned to a device manually or because there are two devices on the network assigning IP addresses at the same time.
Basic Troubleshooting
If your computer gives you an IP conflict error, you should first ensure that there is only one device on your network running DHCP. DHCP services can be turned off in most router menus, allowing you to use your SonicWALL device as your network's sole source of IP addresses. Next, request a new IP for your computer by opening up the Windows command prompt and typing “ipconfig /release” followed by “ipconfig /renew.” Your computer should now be assigned a unique IP address.
Static IP
If your IP conflict problems continue, you could look to assign each device on your network a permanently assigned IP address known as a static IP. Static IPs can be assigned by clicking “Add Static Entry” from the DHCP Server section of the SonicWALL menu. You will need to know the Media Access Control address of the device you want to assign the IP to. Giving each device a static IP ensures that every network device has a unique address, but it can be impractical for large networks.
Managing Ranges
Sonicwall How To Add Manual Reservation Mac Address Dhcp Ip
You can avoid IP conflicts by altering the DHCP range of your SonicWALL device. This edits the “pool” of IP addresses that the device can distribute, allowing you to ensure that dynamically and statically assigned addresses cannot overlap. To edit the IP range, navigate to the DHCP Server menu and click the edit icon next to the range you want to edit. In the following screen, you can alter the first and last IP in the range as well as how long addresses in that range can be assigned for.
References (6)
About the Author
Andy Walton has been a technology writer since 2009, specializing in networking and mobile communications. He was previously an IT technician and product manager. Walton is based in Leicester, England, and holds a bachelor's degree in information systems from the University of Leeds.
Cite this ArticleChoose Citation Style
Given a LAN with default gateway of 10.5.1.1 and subnet of 255.255.0.0
The DHCP range is currently set in the range of 10.5.2.1 to 10.5.3.254
The 10.5.1.x range is reserved for static IP's.
I want to increase the DHCP pool ( the 10.5.2.x - 10.5.3.x range is too small )
Is this DHCP scope limited to the 2.x and 3.x range because of the 255.255.0.0 subnet?
I cannot change the subnet in this scenario. When I try to add another range to the DHCP server ( i.e 10.5.4.x ) it will not allow it ( illegal range? )....
It's a Sonic Wall .. Model: PRO 300 (CPU: StrongARM / 233 Mhz) Firmware version: 6.6.0.6
4 Answers
As posted in the comments, SonicWall does routinely limit the number of devices their products will manage. Sometimes they offer 'licensing upgrades' as options and sometimes it is a hard limit based upon the particular model.
Sonicwall How To Add Manual Reservation Mac Address Dhcp Address
user48838user48838The Netmask 255.255.0.0 only defines the first two octets to be your networks fixed address part. So every 10.5.. combination should be fine from the netmask standpoint.
Without knowing what DHCP server you're using and exactly how you've configured it, I can't speak to the errors you're getting or what could be causing them, but I can say that there is nothing inherent in the protocol or what you're trying to do that should be a showstopper -- you should be able to assign anything within 10.5.0.0/16 as a DHCP range (assuming nothing not in evidence that would preclude that from happening). I could speculate at length as to what your DHCP server is doing wrong, but it wouldn't be productive.
womble♦wombleDefinition Of Manual Reservation
Manual Reservation System In Hotel
Why do you have such a large network range, on what appears to be a single subnet?
The more hosts you have on a network the slower it goes even with switches (there is a magic number, but it depends on the type of traffic & amount of traffic).
I would look at segmenting the network into smaller groups such as 10.5.x.0/24 (thus making several private class C's out of your class A). Then put a DHCP server on each subnet, this can be done with a single linux server that can also route the traffic (with-in your org) & hand it off to the sonicwall for internet routing.
