Лабораторная работа №17.

ISDN

В данной работе вам предстоит конфигурировать цифровую сеть комплексного обслуживания между маршрутизаторами 1 и 2, используя набор кода наследства. Наследство DDRозначает, что все параметрыISDNконфигурированы при интерфейсеBRI/ВRI, а не при интерфейсе программы. Любой пакет должен представить трафик, любой Маршрутизатор должен быть способен начать запрос. Обратитесь к таблице выше для выбора типа свитча, адресов, подсетевых масок, номеров телефонов.

Роутер1:

%LINK-3-UPDOWN: Interface Serial0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to up

%LINK-3-UPDOWN: Interface Ethernet0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0, changed state to up

%LINK-3-UPDOWN: Interface Bri0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Bri0, changed state to up

router1(config-line)#

router1(config-line)#exit

router1(config)#isdn switch-type basic-ni

router1(config)#dialer-list 1 protocol ip permit

router1(config)#username router2 password ciso

router1(config)#interface bri0

router1(config-if)#encap ppp

%LINK-3-UPDOWN: Interface Bri0, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface Bri0, changed state to down

router1(config-if)#ip address 200.10.1.1 255.255.255.0

router1(config-if)#isdn spid1 32177820010100

router1(config-if)#dialer-group 1

router1(config-if)#dialer map ip 200.10.1.2 name router2 broadcast 7782002

router1(config-if)#ppp authentication chap

router1(config-if)#no shut

router1(config-if)#^Z

%SYS-5-CONFIG_I: Configured from console by console

router1#show isdn status

Global ISDN Switchtype = basic-ni

ISDN BRI0 interface

dsl 0, interface ISDN Switchtype = basic-ni

Layer 1 Status:

ACTIVE

Layer 2 Status:

TEI = 64, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED

TEI 64, ces = 1, state = 8(established)

spid1 configured, no LDN, spid1 sent, spid1 valid

Layer 3 Status:

0 Active Layer 3 Call(s)

Active dsl 0 CCBs = 0

The Free Channel Mask: 0x80000003

Number of L2 Discards = 0, L2 Session ID = 100

Total Allocated ISDN CCBs = 0

router1#show interface bri0

Bri0 is up, line protocol is down

Hardware is BRI

Internet address is 200.10.1.1/24

MTU 1500 bytes, BW Kbit, DLY 1000 usec, rely 255/255, load 1/255

Encapsulation PPP, loopback not set, keepalive set (10 sec)

LCP ACKRCVD

Closed: IPCP , CDPCP

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of show interface counters never

Queueing strategy: fifo

Output queue 0/40, 0 drops; input queue 0/75, 0 drops

5 minute input rate 1000 bits/sec, 2 packets/sec

5 minute output rate 1000 bits/sec, 2 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

0 input packets with dribble condition detected

0 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

router1#show interfaces bri0 1 2

Bri0:1 is is down, line protocol is down

Hardware is BRI

Internet address is 200.10.1.1/24

MTU 1500 bytes, BW Kbit, DLY 1000 usec, rely 255/255, load 1/255

Encapsulation PPP, loopback not set, keepalive set (10 sec)

LCP ACKRCVD

Closed: IPCP , CDPCP

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of show interface counters never

Queueing strategy: fifo

Output queue 0/40, 0 drops; input queue 0/75, 0 drops

5 minute input rate 1000 bits/sec, 2 packets/sec

5 minute output rate 1000 bits/sec, 2 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

0 input packets with dribble condition detected

0 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Bri0/0:2 is down, line protocol is down

router1#ping 200.10.1.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 200.10.1.2, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5), round-trip min/avg/max = 1/2/4 ms

Запускаем команду показа ISDN состояния на маршрутизаторах 1 и 2.

router1#show isdn status

Global ISDN Switchtype = basic-ni

ISDN BRI0 interface

dsl 0, interface ISDN Switchtype = basic-ni

Layer 1 Status:

ACTIVE

Layer 2 Status:

TEI = 64, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED

TEI 64, ces = 1, state = 8(established)

spid1 configured, no LDN, spid1 sent, spid1 valid

Layer 3 Status:

0 Active Layer 3 Call(s)

Active dsl 0 CCBs = 0

The Free Channel Mask: 0x80000003

Number of L2 Discards = 0, L2 Session ID = 100

Total Allocated ISDN CCBs = 0

Запускаем команду показа интерфейса bri0 иbri0 1 2.

router1#show interfaces bri0 1 2

Bri0:1 is is down, line protocol is down

Hardware is BRI

Internet address is 200.10.1.1/24

MTU 1500 bytes, BW Kbit, DLY 1000 usec, rely 255/255, load 1/255

Encapsulation PPP, loopback not set, keepalive set (10 sec)

LCP ACKRCVD

Closed: IPCP , CDPCP

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of show interface counters never

Queueing strategy: fifo

Output queue 0/40, 0 drops; input queue 0/75, 0 drops

5 minute input rate 1000 bits/sec, 2 packets/sec

5 minute output rate 1000 bits/sec, 2 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

0 input packets with dribble condition detected

0 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Bri0/0:2 is down, line protocol is down

Hardware is BRI

От маршрутизатора 1 пингуем интерфейс ISDNмаршрутизатора 2.

router1#ping 200.10.1.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 200.10.1.2, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5), round-trip min/avg/max = 1/2/4 ms

Аналогично роутер 2:

%LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

%LINK-3-UPDOWN: Interface Bri0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Bri0, changed state to up

router2(config-line)#

router2(config-line)#exit

router2(config)#isdn switch-type basic-ni

router2(config)#dialer-list 1 protocol ip permit

router2(config)#username router1 password cisco

router2(config)#interface bri0

router2(config-if)#encap ppp

%LINK-3-UPDOWN: Interface Bri0, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface Bri0, changed state to down

router2(config-if)#ip address 200.10.1.2 255.255.255.0

router2(config-if)#isdn spid1 32177820020100

router2(config-if)#dialer-group 1

router2(config-if)#dialer map ip 200.10.1.1 name router1 broadcast 7782001

router2(config-if)#ppp authentication chap

%LINK-3-UPDOWN: Interface Bri0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Bri0, changed state to up

router2(config-if)#no shut

router2(config-if)#^Z

%SYS-5-CONFIG_I: Configured from console by console

router2#show isdn status

Global ISDN Switchtype = basic-ni

ISDN BRI0 interface

dsl 0, interface ISDN Switchtype = basic-ni

Layer 1 Status:

ACTIVE

Layer 2 Status:

TEI = 64, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED

TEI 64, ces = 1, state = 8(established)

spid1 configured, no LDN, spid1 sent, spid1 valid

Layer 3 Status:

0 Active Layer 3 Call(s)

Active dsl 0 CCBs = 0

The Free Channel Mask: 0x80000003

Number of L2 Discards = 0, L2 Session ID = 100

Total Allocated ISDN CCBs = 0