How to add a second IP to a Linux based Wyse client.

I frequently have a remote office that has to change IP addresses. Later on I usually find out that a printer or other network device was not changed to the new IP subnet. Luckily we have some Linux based thin clients from Wyse.

I look at my DHCP server to find the IP of a thin client.

telnet 10.13.5.1
W182 login: root

The default setup has no root password. Great security.

ifconfig eth0:1 10.15.5.1 netmask 255.255.0.0

Now the thin client is my gateway to the old subnet. I can telnet from the Wyse to printers and other devices. I have used this to rescue many HP printers from old IP addresses.

I have also used a Windows PC as a gateway but that was more time consuming for me.