How to make DHCP reservations in SonicWall ARP Table

I am familiar with making DHCP reservations in Windows Server But am now doing in SonicWALL TZ 215 I can see how this is done, But have some questions when doing this in the ARP section:

What does it mean to Publish Entry?

I assume that I want to bind the MAC address or why would I be setting this up in  the first place?

What is meant by Update IP address dynamically?

In the big picture the user will use PPTP from the Windows server to VPN in.  They have a business app that is Unix based and requires the client system to maintain the same IP address (reservation or static).  So, I need the client to obtain that same IP whether they are in the office or out on the road.

Thank you.
rbarwigAsked:
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Blue Street TechLast KnightCommented:
Hi rbarwig,

I am familiar with making DHCP reservations in Windows Server But am now doing in SonicWALL TZ 215 I can see how this is done, But have some questions when doing this in the ARP section:
You do not need to do anything in the ARP section typically. See below for more details.

What does it mean to Publish Entry?
This has to do with the timeout of the entry and makes the ARP entry permanent opposed to on a lease. You don't have to do anything in the ARP section unless, for example, you need to work with non-sequential, secondary Public Subnet in the SonicWALL.

I assume that I want to bind the MAC address or why would I be setting this up in  the first place?
You would enable this only if you choose to bind the MAC address specified to the designated IP address & interface. This option ensures that a particular workstation (as recognized by the NIC's MAC address) can only the used on a specified interface on the security appliance. After the MAC address is bound to an interface, the security appliance:
• Does not respond to that MAC address on any other interface;
• Removes any dynamically cached references to that MAC address that might have been present; and
• Prohibits additional (non-unique) static mappings of that MAC address.

Again, for most operations this is not needed.

What is meant by Update IP address dynamically?
For this option to be available you first need to Bind the MAC Address. This option allows a MAC address to be bound to an interface when DHCP is being used to dynamically allocate IP addressing.

In the big picture the user will use PPTP from the Windows server to VPN in.  They have a business app that is Unix based and requires the client system to maintain the same IP address (reservation or static).  So, I need the client to obtain that same IP whether they are in the office or out on the road.
I would strongly urge you to upgrade their unit to something like a SonicWALL TZ400 and deploy the SSL-VPN (if available in the TZ215) and if not then the GVC VPN opposed to PPTP, which has been deemed extremely insecure.

If you want to setup a Static IP assignment in the SonicWALL for a particular workstation then you would do so the DHCP Server section and click Add Static.
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rbarwigAuthor Commented:
Thank you Blue Street Tech
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Blue Street TechLast KnightCommented:
My pleasure! Glad I could help and thanks for the points!
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