GL-35
Cisco Router and Security Device Manager 2.5 User’s Guide
OL-4015-12
Glossary
spoke In a DMVPN network, a spoke router is a logical end point in the network, and
has a point-to-point IPSec connection with a DMVPN hub router.
spoofing
spoof
The act of a packet illegally claiming to be from an address from which it was
not actually sent. Spoofing is designed to foil network security mechanis ms such
as filters and access lists.
SRB source-route bridging. Method of bridging originated by IBM and popular in
Token Ring networks. In an SRB network, the entire route to a destination is
predetermined, in real time, prior to the sending of data to the destination.
SSH Secure Shell. An application running on top of a reliable transport layer, such as
TCP/IP, that provides strong authentication and encryption capabilities. Up to
five SSH clients are allowed simultaneous access to the router console.
SSID Service Set Identifier (also referred to as Radio Network Name). A unique
identifier used to identify a radio network and which stations must use to be able
to communicate with each other or to an access point. The SSID can be any
alphanumeric entry up to a maximum of 32 characters.
SSL Secure Socket Layer. Encryption technology for the Web used to provide secure
transactions, such as the transmission of credit card numbers for e-commerce.
SSL VPN Secure Socket Layer Virtual Private Networks. SSL VPN is a feature that
enables a supported Cisco router to provide remote clients secure access to
network resources by creating an encryption tunnel across the Internet using t he
broadband or ISP dial connection that the remote client uses.
SSL VPN context A WebVPN context provides the resources needed to configure secure access to
a corporate intranet and other types of private networks. A WebVPN context
must include an associated WebVPN gateway. A WebVPN context can serve one
or more WebVPN group policies.
SSL VPN gateway A WebVPN gateway provides an IP address and a certificate for a WebVPN
context. The
SSL VPN group
policy
WebVPN group policies define the portal page and links for the users included
in those policies. A WebVPN group policy is configured under a WebVPN
context.