| hostname remote | Configures router name which will be used for negotiation purposes when PPP
authentication is enabled. The name of this router is "remote". When configuring
PPP authentication the destination router must have a username of "remote" (this is
case sensitive so it must match exactly) and the same is true in terms of this router
it needs the user name and password of the remote router (see below for further
description)
| username HQ password happy | The username "HQ" is the hostname of the destination router and is referenced
in the dialer map command for authentication purposes. The username is case
sensitive and must match the destination router's hostname exactly.
The password happy is used as the ppp authentication password for the user HQ.
It is also case sensitive and must be the same as the password for username remote
on the HQ router.
| controller t1 0 | This command defines the PRI controller, the type of PRI line (T1 or E1(E1 is
specified within Europe)), and specifies the port number which the controller
will use.
| framing esf | Configuration command to select the frame type for the T1 data line
options: sf Specifies super frame as the T1 frame type; this is the default on a
T1 line.
esf Specifies extended super frame as the T1 frame type.
| linecode b8zs | Controller configuration command to select the line-code type for the T1 line
options: ami Specifies alternat mark inversion (AMI) as the line-code type. Valid
for T1 or E1 controllers. This is the default for T1 lines
b8zs Specifies b8zs as the line-code type. Valid for T1 controller only.
| pri-group timeslots 1-24 (range 1 - 24) | Specifies ISDN Primary Rate Interface (PRI) on a channelized T1 card. Timeslots
will be 1-24 based on number of channels available from the PRI. Timesolt 24 is not
used for data, but is the D-channel which handles all the signaling.
| interface ethernet 0 | Shows the interface and its configuration (in this example it is only a header).
This is also a command that changes the current location into the interface defined,
which in this case is ethernet 0. After changing into an interface, you may enter
all needed config commands.
| ip address 198.52.211.254 255.255.255.0 | Configures the ip address and subnet mask for interface E0 or ethernet 0
| interface serial 0:23 (range 0 - 23) | Shows interface serial 0:number of the sub interface (being one of the PRI channels).
This is also the command to change the current location into the interface defined,
which in this case is serial 0, channel 23 (timeslot 24 (D-channel)).
After changing into an interface, you may enter all needed config commands.
| ip address 192.168.1.2 255.255.255.0 | Configures the ip address and subnet mask for interface S0:23 or channel 23
of serial 0.
| encapsulation ppp | Enables ppp encapsulation in order to negotiate ppp
| dialer idle-timeout 300 | This command specifies the idle number in seconds. This is the time the connection
will remain open if no interesting traffic is being routed across this link. The
timer is reset each time an interesting packet is forwarded across the ISDN connection.
The idle-timeout should be set to the same value on both routers. In this example,
the line will drop after 5 consecutive minutes without interesting traffic.
| dialer map ip 192.168.1.1 name HQ broadcast 14085221234 | Dialer map command uses the name of the destination router to authenticate the
dialed router and if authentication is successful will map the serial 0 interface,
with the relevant channel, (serial 0:7(serial 0 interface : channel 7)) to the
destination router. It will use the phone number at the end of the map statement
to start the call. Again the name of the destination router in this case "HQ" is case
sensitive and must match the actual name of the destination router.
Broadcast enables broadcast packets to be forwarded to this address. (i.e. IP, RIP or
IGRP updates)
To use multilink ppp which enables the use of both B channels for traffic you must
enter a second dialer map with the second phone of the destination routers 2nd B channel.
| dialer-group 1 | The dialer-group 1 command associates this interface with the dialer-list 1 definition.
The interface will now consider anything defined in dialer-list 1 as interesting traffic
and initiate a call if there is not a connection already.
| ppp authentication chap | Enables ppp authentication via chap (Challenge Handshake Authentication Protocol)
| ppp multilink | Enables ppp multilink which allows the use of both B channels for traffic.
| ip route 198.52.110.0 255.255.255.0 192.168.1.1 | Creates a static route to the network 198.52.110.0. This is a global command
entered at the "router name(config)#" prompt and is not valid at the interface prompt.
| dialer-list 1 protocol ip permit | This command defines a dialer list to control dialing by protocol or by a comination of
protocol and access list. This is a global command entered at the "router name(config)#"
prompt.
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
|
|---|
