Cisco Cisco Email Security Appliance X1070 Guía Del Usuario
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User Guide for AsyncOS 10.0 for Cisco Email Security Appliances
Chapter 38 Advanced Network Configuration
Virtual Local Area Networks (VLANs)
Figure 38-1
Using VLANs to Facilitate Communication Between Appliances
About Configuring VLANs
You can configure multiple VLANs on any physical network port on the appliance, including “Data” and
“Management” ports and the fiber optic data ports available on some appliance models. AsyncOS
supports up to 30 VLANs.
“Management” ports and the fiber optic data ports available on some appliance models. AsyncOS
supports up to 30 VLANs.
A physical port does not need an IP address configured in order to be in a VLAN. The physical port on
which a VLAN is created can have an IP that will receive non-VLAN traffic, so you can have both VLAN
and non-VLAN traffic on the same interface.
which a VLAN is created can have an IP that will receive non-VLAN traffic, so you can have both VLAN
and non-VLAN traffic on the same interface.
VLANs can be used with NIC pairing (available on paired NICs) and with Direct Server Return (DSR).
VLANs appear as dynamic “Data Ports” labeled in the format of: “VLAN DDDD” where the “DDDD”
is the ID and is an integer up to 4 digits long (VLAN 2, or VLAN 4094 for example). VLAN IDs must
be unique on your appliance.
is the ID and is an integer up to 4 digits long (VLAN 2, or VLAN 4094 for example). VLAN IDs must
be unique on your appliance.
Related Topics
Managing VLANs
You can create, edit and delete VLANs via the
etherconfig
command. Once created, a VLAN can be
configured via the Network > Interfaces page or the
interfaceconfig
command in the CLI. Remember
to commit all changes.
Appliance configured
VLAN
“Switch”
Internet
“Router”
or
Data 2 interface
Sales server
Finance server
VLAN1
VLAN2
VLAN3
for VLAN1, VLAN2, VLAN3