BinTec RS120 Reference Manual page 546

Glossary
532
MPPE Microsoft Point-To-Point Encryption (MPPE) is used to encrypt data
transmitted via PPP. It was developed by Microsoft and Cisco and
specified as RFC 3078.
MS-CHAP The Microsoft Challenge Handshake Authentication Protocol
(MS-CHAP) is a method of authentication. MS-CHAPv1 is intended
for authenticating DCN connections and is largely the same as the
standard CHAP. MS-CHAPv2 is an authentication method for PPTP
connections (VPN).
MSDU A MAC Service Data Unit (MSDU) is a data packet that is ex-
changed at LLC level.
MSN See Multiple subscriber number
MSS The Maximum Segment Size (MSS) defines the maximum number
of bytes that can be used as user data in a TCP segment. The MSS
must be smaller than the Maximum Transmission Unit (MTU) to
avoid fragmenting the IP packets.
MSS clamping MSS clamping reduces the Maximum Segment Size (MSS) in order
to connect networks with different Maximum Transmission Units
(MTU).
MTU The Maximum Transmission Unit (MTU) is the largest possible data
unit that can be transmitted over a physical line.
Multicast With a multicast, data packets are sent from one point to particular
subscribers in a network. In IPv4 this is controlled via the address
range 224.0.0.0 to 239.255.255.255 and the IGMP protocol, while in
IPv6 it is controlled by ff00::/8 addresses and ICMPv6.
Multilink With multilink, multiple interfaces (PPP, PPPoE, ...) are combined
into a single virtual connection in order to increase the total band-
width available.
Multiple subscriber Multiple subscriber numbers are the individual phone numbers in the
number ISDN point-to-multipoint connection.
NAPT Network Address Port Translation (NAPT) is another term for PAT.
See PAT.
NAT Network Address Translation (NAT) is used to replace the source
and destination IP addresses of a data packet with others. This en-
ables different networks to be connected to one another. See also
PAT.
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