Glossary
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Cisco Router and Security Device Manager Version 2.2 User’s Guide
OL-4015-08
remote subnet Subnetworks are IP networks arbitrarily segmented by a network administrator
(by means of a subnet mask) in order to provide a multilevel, hierarchical routing
structure while shielding the subnetwork from the addressing complexity of
attached networks. A “remote subnet” is the subnet that is not associated with
your end of a transmission.
replay-detection A standard IPSec security feature that combines sequence numbers with
authentication, so the receiver of a communication can reject old or duplicate
packets in order to prevent replay attacks.
repudiation In cryptographic systems, repudiation is the denial by one of the entities
involved in a communication of having participated in all or part of that
communication.
revocation
password
The password that you provide to a CA when you request that it revoke a router’s
digital certificate. Sometimes called a challenge password.
RFC 1483 routing RFC1483 describes two different methods for carrying connect ionless network
interconnect traffic over an ATM network: routed protocol data units (PDUs) and
bridged PDUs. SDM supports the configuration of RFC 1483 r outing, and enables
you to configure two encapsulation types: AAL5MUX, and AAL5SNAP.
AAL5MUX: AAL5 MUX encapsulation supports only a single protocol (IP or
IPX) per PVC.
AAL5SNAP: AAL5 Logical Link Control/Subnetwork Access Protoc ol
(LLC/SNAP) encapsulation supports Inverse ARP and inc orporates the
LLC/SNAP that precedes the protocol datagram. This allows the multiple
protocols to transverse the same PVC.
RIP Routing Information Protocol. A routing protocol that uses the number of
routers a packet must pass through to reach the destination, as the routing metric.
root CA Ultimate certification authority (CA), which signs the certificates of the
subordinate CAs. The root CA has a self-signed certificate that contains its own
public key.
route A path through an internetwork.