Welcome to the discussion area, MATMAD!
Last question first, +2.- How I can set up my Time Capsule for share the IP addresses.+
This is the correct setting for your Time Capsule...IF...you are using a simple
modem with only one ethernet port.
Open Macintosh HD > Applications > Utilities > AirPort Utility
Click Manual Setup
Click the Internet icon
Connection Sharing = Share a public IP address
The correct setting for your Time Capsule....IF....you have a
gateway (which is a combination modem and router on one chassis with 3-4 ethernet ports) is as follows:
Connection Sharing = Off (Bridge Mode)
+1.- I can`t set up my printer (xerox phaser 6125) on the wireless network (Time Capsule)+
You did not tell us if you were trying to connect to the Time Capsule's USB port for this, but I will guess that may be what you are trying to do. The best approach here is Apple's
Printer Troubleshooting Guide.
Please keep in mind that not all printers are compatible with the Time Capsule. If you try all the steps in the guide and things still won't work correctly, then you may have an incompatible device.