Cisco Cisco Email Security Appliance C190 Installation Guide

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For Windows
The exact steps depend on your operating system version. 
Step 1
Go to the Start menu and choose Control Panel.
Step 2
Click Network and Internet, then Network and Sharing 
Center
.
Step 3
Click the Change adapter settings link. 
Step 4
Right-click Local Area Connection and choose 
Properties.
Step 5
Click Internet Protocol Version 4, then choose 
Properties.
Step 6
Note your current settings. 
Step 7
Select Use the Following IP Address.
Step 8
Enter the following changes: 
  •
IP Address: 192.168.42.43
  •
Subnet Mask: 255.255.255.0
  •
Default Gateway: 192.168.42.1
Step 9
Click OK and Close to exit the dialog box.
For Mac
The exact steps depend on your operating system version. 
Step 1
Launch the Apple menu and choose System Preferences
Step 2
Click Network. 
Step 3
Click the lock icon to allow changes.
Step 4
Select the network configuration with the green icon. 
This is your active connection. Then click Advanced.
Step 5
Click the TCP/IP tab and from Ethernet settings, 
choose Manually from the drop-down list.
Step 6
Enter the following changes: 
  •
IP Address: 192.168.42.43
  •
Subnet Mask: 255.255.255.0