Hotspot Dhcp Server; Hotspot Security - Digi TX54 User Manual

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Hotspot DHCP server

When the hotspot is enabled on the TX54 device, it automatically enables a DHCP server. During

hotspot configuration, you assign an IPv4 address to the hotspot, and the DHCP server then uses the

subnet of the hotspot's IP address, along with the hotspot's subnet mask, to assign IPv4 addresses to

clients that connect to the hotspot.

To prevent the hotspot's DHCP server from assigning IP addresses that are already in use elsewhere

in your local network, the hotspot must use a subnet that is not currently being used in your local

A typical hotspot is an open network. This means that traffic transferred between the hotspot and the

hotspot clients is not encrypted and can be intercepted by a packet sniffer or similar technology.

However, the sample HTML login pages provided with your TX54 device use CHAP-MD5 authentication,

providing a level of security during the authentication process. Additionally, websites that use the

HTTPS protocol provide end-to-end encryption between the browser and the web server.

Hotspot clients are typically untrusted and only given access to the WAN interface on the device. The

hotspot firewall zone settings prevent hotspot clients from accessing any of the other interfaces on

the device (such as the LAN and VPN interfaces). Additionally, the hotspot zone prevents hotspot

clients from accessing the device itself (for example, via the web interface or SSH).

TX54 User Guide

Hotspot DHCP server