Ipsec Faq; Vpn Overview - ZyXEL Communications P-793H v2 Support Notes

P-793H v 2 Support Notes
4. When does the P-793H v2 generate the firewall alert?
The P-793H v2 generates the alert when an attack is detected by the firewall
and sends it via Email. So, to send the alert, you must configure the mail server
and Email address using Web Configurator, Advanced Setup, Maintenance ->
Logs -> Log Settings. You can also specify how frequently you want to receive
the alert in it.
5. What is the difference between the log and alert?
A log entry is just added to the log inside the P-793H v2 and e-mailed
together with all other log entries at the scheduled time as configured. An
alert is e-mailed immediately after an attacked is detected.

IPSec FAQ

VPN Overview

1. What is VPN?
A VPN gives users a secure link to access corporate network over the Internet
or other public or private networks without the expense of lease lines. A secure
VPN is a combination of tunneling, encryption, authentication, access control
and auditing technologies/services used to transport traffic over the Internet or
any insecure network that uses the TCP/IP protocol suite for communication.
2. Why do I need VPN?
There are some reasons to use a VPN. The most common reasons are
because of security and cost.
Security
(1). Authentication
With authentication, VPN receiver can verify the source of packets and
guarantee the data integrity.
(2). Encryption
With encryption, VPN guarantees the confidentiality of the original user data.
Cost
(1). Cut long distance phone charges
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