Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

You can segregate incoming and outgoing email traffic over separate listeners and on separate IP 
addresses. You can use Internet Protocol version 4 (IPv4) and version 6 (IPv6) addresses. However, the 
System Setup Wizard on the appliance supports initial configuration of the following configurations:

2 separate listeners on 2 logical IPv4 and 2 IPv6 addresses configured on separate physical 
interfaces

segregates incoming and outgoing traffic

you can assign an IPv4 and an IPv6 address to each listener

1 listener on 1 logical IPv4 address configured on one physical interface

combines both incoming and outgoing traffic

you can assign both an IPv4 and an IPv6 address to the listener

Configuration worksheets for both one and two listener configurations are included below (see 

). Most configuration scenarios are represented by one of the 

following three figures.