Руководство Пользователя для Cisco Cisco Email Security Appliance C170

After a VLAN is created using the 

etherconfig

 command, you can configure it using the Network > 

Listeners page. 

Direct Server Return (DSR) is a way of providing support for a light-weight load balancing mechanism 
to load balance between multiple Email Security appliances sharing the same Virtual IP (VIP). 

DSR is implemented via an IP interface created on the “loopback” ethernet interface on the appliance.

Configuring load balancing for Email Security appliances is beyond the scope of this document.

Enable DSR by enabling the “loopback” ethernet interface on each participating appliance. Next, create 
an IP interface on the loopback interface with a virtual IP (VIP) via the 

interfaceconfig

 command in 

the CLI or via the Network > Interfaces page in the GUI. Finally, create a listener on the new IP interface 
via the 

listenerconfig

 command in the CLI or via the Network > Listeners page in the GUI. Remember 

to commit all changes.

Using the loopback interface prevents the appliance from issuing ARP replies for that specific interface.

When enabling DSR, the following rules apply:

All systems use the same Virtual IP (VIP) address

All systems must be on the same switch and subnet as the load balancer

2. InternalVLAN31 (10.10.31.10/24: mail31.example.com)

3. Management (10.10.0.10/24: example.com)

Choose the operation you want to perform:

- NEW - Create a new interface.

- EDIT - Modify an interface.

- GROUPS - Define interface groups.

- DELETE - Remove an interface.

[]>