User Guide

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AsyncOS 9.1.2 for Cisco Email Security Appliances User Guide
Chapter 37 Advanced Network Configuration
Virtual Local Area Networks (VLANs)
Virtual Local Area Networks (VLANs)
VLANs are virtual local area networks bound to physical data ports. You can configure VLANs to
increase the number of networks the appliance can connect to beyond the number of physical interfaces
included. For example, some appliance models have three interfaces: Data 1, Data 2, and Management.
VLANs allow more networks to be defined on separate “ports” on existing listeners. (See Appendix A,
“FTP, SSH, and SCP Access” for more information.) You can configure multiple VLANs on any physical
network port. Figure 37-1 provides an example of configuring several VLANs on the Data 2 interface.
Choose the operation you want to perform:
- DELETE - Delete a pairing.
- STATUS - Refresh status.
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