biboPPPEncapsulation
BIANCA-BRICK-PPP-MIB ·
.1.3.6.1.4.1.272.4.3.1.1.3
Object
column
mandatory
r/w
Enumeration
The layer 2 encapsulation of the link. The use of
ppp(1) as described in RFC 1661 is the preferred
encapsulation for point-to-point links. The encapsulation
is set to x25(2) for X.25-only links and to x25-ppp(3) for
concurrent use of X.25 and PPP.
Mpr-lapb(7) and mpr-hdlc(8) are popular proprietary
encapsulations. They both use the ethertype number
for protocol multiplexing. The former is used when
error correction or data compression (v42bis) is desired.
The latter (mpr-hdlc) is compatible to Cisco's HDLC
encapsulation.
On IP-only links it is also possible to use the
ISO LAPB protocol (ip-lapb(4)), also known as X.75,
or raw hdlc framing (ip-hdlc(6)).
The x75-ppp encapsulation provides PPP over X.75 (LAPB)
framing, x75btx-ppp provides PPP over T.70 and LAPB framing
including a BTX protocol header.
The x25-nosig(13) encapsulation is used to establish X.25
connections over dialup links without specific signalling
on the D-channel (pure data call).
The x25-ppp-opt encapsulation provides a special kind of the
x25-ppp encapsulation. Dialin partner will be authenticated
either outband to establish an X.25 connection via ISDN or
optional inband by using the point-to-point protocol (PPP).
Concurrent use of X.25 and PPP encapsulation is excluded.
The x25-noconfig(16) and x25-noconfig-nosig(17) encapsulations
provide a solution for establishing X.25 connections via ISDN.
The dial number will be derived from X.25 destination address
by using special rules.
V42bis data compression can be enabled on LAPB links only,
because v42bis requires an error free connection.
The v120-ppp(19) enables a GSM HSCSD connect. Data Rates up
to 57KBps are possible.
Dialup links can be removed by setting this field
to delete(5). This has no effect on permanent links.
Context
- MIB
- BIANCA-BRICK-PPP-MIB
- OID
.1.3.6.1.4.1.272.4.3.1.1.3- Type
- column
- Access
- readwrite
- Status
- mandatory
- Parent
- biboPPPEntry
- Table
- biboPPPTable
- Siblings
- 31
Syntax
Enumeration
Values & Constraints
Enumerated Values
1 | ppp |
2 | x25 |
4 | ip-lapb |
5 | delete |
6 | ip-hdlc |
7 | mpr-lapb |
8 | mpr-hdlc |
9 | frame-relay |
11 | x75-ppp |
19 | v120-ppp |
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| biboPPPIfIndex mandatory Correlating PPP interface index. This value is
assigned automatically by the system. | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.1 |
| biboPPPIpAddress mandatory The IP control protocol as described in RFC1332
has a means of negotiating IP-addresses. When this
option is set to dynamic-server(2), an available
IP-address found in biboPPPIpAd… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.10 |
| biboPPPRetryTime mandatory Time in seconds to wait before retrying an ISDN call
or PPTP control connection.
This value is also used as timeout for the delayed callback
(see biboPPPCallback_de… | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.11 |
| biboPPPBlockTime mandatory Time in seconds to wait after a connection failure
(e.g. the number of biboPPPMaxRetries calls failed).
When set to zero, the interface state is never set to
blocked. | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.12 |
| biboPPPMaxRetries mandatory The number of dialup retries before changing to
the blocked state. | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.13 |
| biboPPPShortHold mandatory The time in seconds to wait, once the channel is silent,
(that is, no data is being received or transmitted) before
terminating the link. When set to zero the short hold
mode is d… | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.14 |
| biboPPPInitConn mandatory The number of channels to initially set up for this
interface. | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.15 |
| biboPPPMaxConn mandatory The maximum number of channels bundled for this interface. | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.16 |
| biboPPPMinConn mandatory The minimum number of channels bundled for this interface. | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.17 |
| biboPPPCallback mandatory If this object is enabled(1), and the call is recognized by
the dialed number then calls are never accepted, and a
callback is forced for incoming calls at once. The callback
can … | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.18 |
| biboPPPLayer1Protocol mandatory This entry is used to select the layer 1 protocol settings
for this partner. Normally the correct entry is hdlc-64. | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.19 |
| biboPPPType mandatory The type of the PPP multiprotocol interface. A new dialup
interface is created when this field is set to the value
isdn-dialup(1), isdn-dialin-only(3) or multiuser(5).
… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.2 |
| biboPPPLoginString mandatory A textual string containing a login sequence (script)
composed of fields in the format [expect send], comparable
to chat scripts commonly used on other sytems. This
script is req… | column | OctetString | .1.3.6.1.4.1.272.4.3.1.1.20 |
| biboPPPVJHeaderComp mandatory This entry is used to enable Van Jacobsen TCP/IP header
compression, which reduces the size of TCP/IP packet
headers and increases the efficiency of line utilization. | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.21 |
| biboPPPLayer2Mode mandatory This object specifies the layer 2 mode to be used for a
connection. It is only relevant, if the Encapsulation
involves an LAPB protocol. This is the case for
x25, x25-ppp, ip-lap… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.22 |
| biboPPPDynShortHold mandatory Optimizes idle time disconnects depending on the charging
information received during the connection. This value
specifies the minimum inactivity time (channel is silent)
in perce… | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.23 |
| biboPPPLocalIdent mandatory This is the local identification string used for PPP
authentication(PAP/CHAP/MS-CHAP). | column | OctetString | .1.3.6.1.4.1.272.4.3.1.1.24 |
| biboPPPDNSNegotiation mandatory The IP control protocol extensions as described in
RFC 1877 has a means of negotiating primary and
secondary Domain Name System (DNS) server addresses.
When this op… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.25 |
| biboPPPEncryption mandatory This field specifies the data encryption scheme for
en(de)crypting PPP encapsulated multi-protocol datagrams.
Setting to mppe-40(2), mppe-128(3) or mppe-56(7) the
Microsoft Point… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.26 |
| biboPPPLQMonitoring mandatory This parameter enables (2) or disables (1) PPP Link Quality
Monitoring (LQM) according RFC 1989. When set to on(2) LQM
is added to the list of parameters used in LCP negotiation.
… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.27 |
| biboPPPIpPoolId mandatory Pool ID value to select an IP address pool for dynamic IP
address assignment via IPCP. See also PPPIpPoolTable
for further details. | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.28 |
| biboPPPSessionTimeout mandatory Maximum number of seconds before termination the established
PPP session, regardless there is any data throughput on the
corresponding link(s). When set to 0, there no limit for t… | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.29 |
| biboPPPLayer1DiscDelay mandatory This parameter specifies wether the link (layer 1) should be
disconnected immediately (after receiving a layer 2 disconnect)
or delayed (after expiration of biboPPPShortHold secon… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.30 |
| biboPPPAuthDomain mandatory The authentication domain, which is used
for authenticating via MS-CHAP with enabled DomainName. | column | OctetString | .1.3.6.1.4.1.272.4.3.1.1.31 |
| biboPPPAliveCheck mandatory When set to enabled(1), LCP Echo Request (in case of
encapsulation PPP) or Cisco-HDLC keepalive messages
(in case of encapsulation cisco-hdlc) are sent in
regular intervals durin… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.32 |
| biboPPPKeepalive obsolete When set to on(1), keepalive packets are sent in
regular intervals during the connection. Keepalive packets
can not be sent using the ip-lapb or x25 encapsulation. | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.4 |
| biboPPPTimeout mandatory The number of milliseconds waiting before
retransmitting a PPP configure packet. | column | Integer32 | .1.3.6.1.4.1.272.4.3.1.1.5 |
| biboPPPCompression mandatory The throughput can be enhanced up to factor three
using the V42bis compression method or the Stac LZS
compression algorithm. V42bis is currently supported
with the ip-lapb and mpr… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.6 |
| biboPPPAuthentication mandatory The type of authentication used on the point-to-point
link as described in RFC 1334. The authentication
protocol supports pap(2) (Password Authentication Protocol),
chap(3) (Chall… | column | Enumeration | .1.3.6.1.4.1.272.4.3.1.1.7 |
| biboPPPAuthIdent mandatory The remote authentication identification string. The
local authentication identification string is taken from the
contents of the variable biboPPPLocalIdent. | column | OctetString | .1.3.6.1.4.1.272.4.3.1.1.8 |
| biboPPPAuthSecret mandatory The authentication secret, which is used symmetrically
for both local and remote sides of the PPP link. | column | OctetString | .1.3.6.1.4.1.272.4.3.1.1.9 |