Overview
T
If a virus if found in
this protocol...
VStream Antivirus does this... The protocol is detected
on this port...
able 57: VStream Antivirus Actions
P
•
Terminates the
only port 80
HTT
connection
All ports on which VStream is
enabled by the policy, not
POP3
infected email from the
server
ndard TCP port 110.
IMAP
•
Terminates the
connection
•
Replaces the virus-
infected email with a
message notifying the
user that a virus was
found
The standard TCP port 143
SMTP
•
Rejects the virus-
infected email with error
code 554
•
Sends a "Virus
detected" message to
the sender
The standard TCP port 25
FTP
•
Terminates the data
connection
•
Sends a "Virus detected"
message to the FTP
client
The standard TCP port 21
TCP and UDP
•
Terminates the
connection
Generic TCP and UDP ports,
other than those listed above
•
Terminates the
connection
The sta
•
Deletes the virus-
Note:
In protocols that are not listed in this table, VStream Antivirus uses a "best
effort" approach to detect viruses. In such cases, detection of viruses is not
guaranteed and depends on the specific encoding used by the protocol.
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D-Link NetDefend firewall User Guide