The objective of this document is to
show you how to configure Antivirus on RV34x series routers.
The Antivirus protects network users
from infections and malware content received in emails or data. The Antivirus
feature supports Simple Mail Transfer Protocol (SMTP), Hypertext Transfer
Protocol (HTTP), File Transfer Protocol (FTP), Post Office Protocol version 3 (POP3)
and Internet Message Access Protocol (IMAP) protocols.
The Antivirus engine uses two
important components: a classifier that knows where to look, and the virus
database that knows what to look for. The engine classifies the file by type
rather than by relying on the extension. The virus engine looks for viruses in
the bodies and attachments of messages received by the system; an attachment’s
file type helps determine its scanning.
To learn what malware is, check out
this link: What
To learn how to configure Umbrella,
click the link: Configuring
Cisco Umbrella RV34x.
If the router is currently under a heavy workload, this may exacerbate the
The table below gives expected
statistics for performance under various configurations. These values should be
used as a guide, as real world performance may differ due to a number of
Enable APP control
Enable App Control Antivirus & IPS
The following fields are defined as:
Connections – The total number of concurrent connections For
example, if you are downloading a file from one site, that’s one connection,
streaming audio from Spotify that will be another connection, making it two
Connection Rate –
The number of connection requests per second it can process.
– The HTTP and FTP throughput are the download rates in MB/sec.
Security licenses have been updated
to include Antivirus in addition to existing application and web filtering. A
smart account is required in order to have a security license. If you do not
already have an active smart account, section 1 of this document will be required.
To learn how to configure Intrusion Prevention System on RV34x, click here.
Table of Contents
Licensing Structure - Firmware versions 220.127.116.11 and later
Moving forward, AnyConnect will incur a charge for client licenses only.
For additional information on AnyConnect licensing on the RV340 series routers, please see the article on: AnyConnect Licensing for the RV340 Series Routers.
Step 1. If you haven’t logged into
the router, log in to the web configuration page.
Step 2. Navigate to Security > Threat/IPS > Antivirus.
Step 3. Click the On radio button to enable the antivirus
Step 4. Check the Enable checkbox(es) to enable Applications to Scan on the protocols. In this example, we have
enabled all the protocols (HTTP, FTP, SMTP,
POP3, and IMAP). Then
select the appropriate action for it. The following options are defined as:
Select this option to generate the log only (with client information, signature
ID, etc.) when the threats are identified. It does not impact the connection.
– Select this option to drop the connection when threats are identified and
logs the message for deletion.
In the case of an identified threat in an attachment, it will truncate the file
during the download process.
Step 5. If you want the antivirus to
have a required file size to scan, check the Enable
File Size Threshold. Then enter the file size that the antivirus can
scan. The range is from 1-100 MB.
In this example, 50 MB was entered.
Step 6. In the Virus Database section, the Last update shows the date and time of the
last updated signature. File version
shows the signature version which is being used.
Step 7. Click the Apply button to save your changes.
Pressing Apply only saves your configuration to the running
configuration. You will need to copy your running configuration to the startup
configuration if you want to keep your configuration between reboots.
Step 8. Click the Floppy Disk (Save) icon at the top of the page.
This will redirect you to the Configuration
Management to copy your running configuration to the startup
Step 9. In the Configuration Management, scroll down to
the Copy/Save Configuration
section. Ensure that the Source
is Running Configuration and the Destination is Startup Configuration. Click Apply.
This will copy the running configuration file to the startup configuration file
to retain the configuration between reboots.
Step 1. Navigate to Security > Threat/IPS > Status.
Step 2. In the Status page, you can see the system date
and time, scanned and detected threats, and attacks of the selected tab. By
default, you can see the Total tab’s status.
Step 3. In the drop-down list under Total tab, you can select Last 24 hours, Week, or Month to
display the events.
Step 4. Click the Virus tab. In the Virus tab, it will display the following:
Top 10 Clients
Affected – the list of mac addresses who are affected.
Top 10 Viruses
Detected – the list of threats detected.
You can hover your mouse over the pie chart for more details.
You can update the Antivirus database
either manually or automatically. Steps 1-2 will show you how to update the Antivirus
database manually while Steps 3-6 will show you how to update the Antivirus database
It is recommended to update the security signatures automatically on a weekly
Step 1. To manually update Antivirus
database, navigate to Administration >
Step 2. Scroll down to the Manual Upgrade section in the File Management page. Choose Signature File for File Type and cisco.com for Upgrade From.
Then press Upgrade. This will
download the latest security signature and install it.
Step 3. To automatically update the Antivirus
database, navigate to System Configuration
> Automatic Updates.
Step 4. The Automatic Updates page opens. You have the
option of checking for updates either on a weekly or monthly basis. You can
have the router notify via email or the Web UI. In this example, we will be
selecting to check every week.
It is recommended to update security signatures automatically on a weekly
Step 5. Scroll down to the Automatic Update section and look for the Security Signature field. In the Security Signature Update drop-down list,
select the time that you want to automatically update. In this example, we will
be selecting Immediately.
Step 6. Click Apply to save the changes to the running
Remember to click the Floppy Disk
icon on the top to navigate to the Configuration
Management page to copy your running configuration file to the
startup configuration file. This will help retain your configurations between
You should now have configured Antivirus
on your RV34x Series Router.
For additional information, check out the following resources.
Small Business Support Community
· FAQ about RV34x Series: RV34x
Series Router FAQs