Cisco 7604 Configuration Manual page 707

Distinguished Name. Global, authoritative name of an entry in the OSI Directory (X.500).
DN
Domain Name System (or Service). An Internet service that translates domain names into IP
DNS
addresses.
Denial of Service. A type of network attack in which the goal is to render a network service
DoS
unavailable.
digital subscriber line. Public network technology that delivers high bandwidth over conventional
DSL
copper wiring at limited distances. DSL is provisioned via modem pairs, with one modem located at
a central office and the other at the customer site. Because most DSL technologies do not use the
whole bandwidth of the twisted pair, there is room remaining for a voice channel.
digital signal processor. A DSP segments a voice signal into frames and stores them in voice packets.
DSP
Digital Signature Standard. A digital signature algorithm designed by The US National Institute of
DSS
Standards and Technology and based on public-key cryptography. DSS does not do user datagram
encryption. DSS is a component in classic crypto, as well as the Redcreek
implemented in Cisco IOS software.
See
Dynamic NAT
Dynamic Port Address Translation. Dynamic PAT lets multiple outbound sessions appear to originate
Dynamic PAT
from a single IP address. With PAT enabled, the FWSM chooses a unique port number from the PAT
IP address for each outbound translation slot (xlate). This feature is valuable when an
allocate enough unique IP addresses for your outbound connections. The global pool addresses always
come first, before a PAT address is used. See also NAT,
E
See Ping, ICMP. See also
ECHO
Exterior Gateway Protocol. Replaced by BGP. The FWSM does not support EGP. See also BGP.
EGP
Enhanced Interior Gateway Routing Protocol. The FWSM does not support EIGRP.
EIGRP
Enterprise Management BaseLine Embedded Manageability. A syslog format designed to be
EMBLEM
consistent with the Cisco IOS system log format and is more compatible with CiscoWorks
management applications.
Application of a specific algorithm or cipher to data so as to render the data incomprehensible to those
encryption
unauthorized to see the information. See also decryption.
Endpoint Mapper.
EPM
Extended SMTP. Extended version of
ESMTP
notification and session delivery. ESMTP is described in RFC 1869, SMTP Service Extensions.
Encapsulating Security Payload. An
ESP
services for establishing a secure tunnel over an insecure network. For more information, refer to
RFCs 2406 and 1827.
Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM
OL-20748-01
NAT and address translation.
inspection
Static PAT, and xlate.
engine.
SMTP that includes additional functionality, such as delivery
IPSec protocol, ESP provides authentication and encryption
Glossary
IPSec card, but not in IPSec
ISP cannot
GL-5