USGFLEX 50 ip-address change

MattiS

I need to change LAN ip-addresses from 192.168.10.xxx to 192.168.100.xxx

I haven't been able to find a spot where to do it?

Zyxel_Judy

Hi @MattiS ,

Please see PeterUK's recommendation firstly.

If you still want to change your LAN IP addresses from 192.168.10.xxx to 192.168.100.xxx, you can follow these steps:

1. Navigate to: Configuration > Network > Interface
2. Select the LAN interface you want to modify (e.g., lan1)
3. Update the IP address
4. Adjust DHCP configuration if necessary

PeterUK

If you have 50 devices with DHCP set for x days and you change the LAN subnet on the flex you have to reboot devices or wait x days for them to get the new IP in that subnet or change lease time to 3mins wait x days on the old lease then change the IP subnet and your devices will get a new IP in that subnet in 3 mins

I don't recommend 192.168.100.xxx if you have a modem thats on 192.168.100.1

Zyxel_Judy

Hi @MattiS ,

Please see PeterUK's recommendation firstly.

If you still want to change your LAN IP addresses from 192.168.10.xxx to 192.168.100.xxx, you can follow these steps:

1. Navigate to: Configuration > Network > Interface
2. Select the LAN interface you want to modify (e.g., lan1)
3. Update the IP address
4. Adjust DHCP configuration if necessary

MattiS

https://community.zyxel.com/en/discussion/comment/71159#Comment_71159

I want the LAN ip addresses to be 192.168.100.xxx. F.eg. Printer address is in the old firewall 192.168.100.200, so I want the printer to be the same address in this new Flex50.

MattiS

Hello!

Thank you, for your answer, Judy!

I did that and added a bit lower a IP Pool start address to 192.168.100.33.

However, now I see no computers in DHCP table! Why?

I can't fix any IP addresses now.

Best regards, Matti

PeterUK

reboot the computers