15 Monitoring
15-40
VPN 3000 Concentrator Series User Guide
Encryption
The data encryption algorithm that the sessions are using:
Other = other than listed below.
None = no data encryption.
DES-56 = Data Encryption Standard algorithm with a 56-bit key.
DES-40 = DES encryption with a 56-bit key, 40 bits of which are private.
3DES-168 = Triple-DES encryption with a 168-bit key.
RC4-40 Stateless = RSA RC4 encryption with a 40-bit key, and with keys changed on every packet.
RC4-40 Stateful = RSA RC4 encryption with a 40-bit key, and with keys changed after some number
of packets or whenever a packet is lost.
RC4-128 Stateless = RSA RC4 encryption with a 128-bit key, and with keys changed on every packet.
RC4-128 Stateful = RSA RC4 encryption with a 128-bit key, and with keys changed after some
number of packets or whenever a packet is lost.
Sessions
The number of active sessions using this encryption algorithm. The sum of this column equals the total
number of
Active Sessions above.
Bar Graph
The percentage of sessions using this encryption algorithm relative to the total active sessions, as a
horizontal bar graph. Each segment of the bar in the column heading represents 25%.
Percentage
The percentage of sessions using this encryption algorithm relative to the total active sessions, as a
number. The sum of this column equals 100% (rounded).
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