# Secure and isolate the network

- [Create a subnet for RMH](https://docs.rmhpos.com/installation/nbp_topics/nbp-network-securing-and-isolating/nbp-network-create-rmh-subnet.md): This topic describes how to create a subnet for RMH.
- [Disable DHCP](https://docs.rmhpos.com/installation/nbp_topics/nbp-network-securing-and-isolating/nbp-network-disable-dhcp.md): This topic describes how to disable DHCP to prevent the router from automatically assigning IP addresses to devices that connect to the RMH network.
- [Assign a static IP address](https://docs.rmhpos.com/installation/nbp_topics/nbp-network-securing-and-isolating/nbp-network-assign-static-ip.md): This topic describes how to assign a static IP address to add store computers and peripheral devices that need to access the RMH network.


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