ZyXEL Communications P-2812HNU-51c User Manual page 387

following example, the LAN and WAN are on the same subnet. The LAN computers
cannot access the Internet because the router cannot route between networks.
Figure 224 Conflicting Router IP Addresses Example
Conflicting Computer and Router IP Addresses Example
More than one device can not use the same IP address. In the following example,
the computer and the router's LAN port both use 192.168.1.1 as the IP address.
The computer cannot access the Internet. This problem can be solved by
assigning a different IP address to the computer or the router's LAN port.
Figure 225 Conflicting Computer and Router IP Addresses Example
P-2812HNU-51c User's Guide
Appendix D IP Addresses and Subnetting
387