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What do I check when replacing a router?

Changing your router will require some additional work. In some cases only validating but in others cases more changes will need to be made to adapt to the new router.
Please note this article makes assumptions to simplify the article.  Specifically it assumes you are using a Class C network. If you do not know what this is then almost certainly it is what you have. If you are not using a Class C network or use multiple internal subnets this article will not apply to you. Please contact support and we can help in more detail.
1. You need to determine if your router has changed the basic settings for your network.
1a. The Routers internal IP Address. Almost all routers use an internal address that ends in a 1 (like 192.168.1.1 or 10.0.0.1) however some routers use an address that ends in 254. This address is generally referred to as the “Default Gateway”. You need to determine what this address is for your new router.
1b. Private networks always use an address that starts with either 192.168. or 10. But the important distinctions between your old router and new router is the first three numbers of the IP Addresses used on your network. This is called  your “Network”. What is important is you need to determine if your new router uses a different “Network” that your old router did.
2. Your automation equipment. The details are slightly different for each type of equipment but all of the items below will apply. Be sure to upload and/or save any changes you make.
2a. Your equipment should be set to use a static IP Address on your internal network.  If your “Network” has changed (see 1b above) then the static address must be changed to match the addresses used by your new router.
Please note some equipment does not allow you to set a static IP Address. For these devices a DHCP reservation can also be used. You should only use a DHCP reservation if a static IP Address is not possible.
2b. The default gateway field must be set to the internal IP Address of your new router (see 1a above).
3. Router configuration.
3a. Your port forwarding entries will not exist in the new router. All of the entries in your old router will need to be re-created in the new router. Be sure to use the correct address for the equipment (See 2a above).
4. External router address. This address is assigned to your router by your internet provider and it WILL change over time. For reliable remote access to your equipment this situation has to be addressed. There are two common methods. You only need to use one of the following.
Please note professional installers have different needs than individual end-users. We keep additional best practice recommendations for installers that go beyond the minimum requirements listed in this article. Contact support for more detail.
4a. Call your internet provider and purchase a static IP Address. The cost for this can vary greatly depending on your internet provider and where you are located. It should only be a few dollars per month.
Please note some internet providers have hardware requirements and restrictions when using static IP Addresses. Make sure you are comfortable with any requirements they have. The detailed setup of this equipment is not something our support can assist you with.
4b. Use a dynamic DNS account. There are several options available but http://www.dyndns.org/ has the best reputation. This account is inexpensive (~$25 per year in 2015). This service will associate a name you select with the public IP Address of your router. A client that runs 24/7 will be required. Many 3rd part routers and equipment provide this important functionality. The client is what monitors for changes in the external IP Address and updates the dynamic DNS account as needed.
Please note some equipment (mainly IP Video DVRs and NVRs) provide a similar but incompatible technology called a “Web Redirect”. eKeypad only supports dynamic DNS.