15 Monitoring
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VPN 3000 Concentrator Series User Guide
IP Address
The IP address of the session user. This is the address assigned to or supplied by a remote user, or the
host address of a networked user.
Local identifies the console directly connected to the VPN
Concentrator.
Protocol
The protocol that the session is using.
Console = directly connected console; no protocol.
Debug/Console = debugging via console (Cisco use only).
Debug/Telnet = debugging via Telnet (Cisco use only).
FTP = File Transfer Protocol.
HTTP = Hypertext Transfer Protocol (Web browser).
IPSec = Internet Protocol Security tunneling protocol (remote-access user).
IPSec/LAN-to-LAN = IPSec LAN-to-LAN connection.
IPSec/NAT = IPSec through NAT (Network Address Translation).
L2TP = Layer 2 Tunneling Protocol.
L2TP/IPSec = L2TP over IPSec.
Other = protocol other than those listed here.
PPTP = Point-to-Point Tunneling Protocol.
SNMP = Simple Network Management Protocol.
Telnet = terminal emulation protocol.
TFTP = Trivial File Transfer Protocol.
Encryption
The data encryption algorithm that the session is using.
None = no data encryption.
DES-40 = Data Encryption Standard algorithm with a 56-bit key, 40 bits of which are private.
DES-56 = DES encryption with a 56-bit key.
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.
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