广域网ISDN配置
2006-01-19 17:54
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ISDN Parameters
Configure ISDN between router1 and router2 using Legacy Dial on Demand Routing.
Legacy DDR means all ISDN parameters are configured under the BRI/PRI interface and not under a dialer interface. Any IP packet should represent ‘interesting traffic’ and either router should be able to initiate the call. PPP encapsulation and CHAP authentication should be used. Refer to the table above for ISDN switch-type, IP addresses,
router1(config)#isdn switch-type basic-ni
router1(config)#dialer-list 1 protocol ip permit
router1(config)#username router2 password cisco
router1(config)#interface bri0
router1(config-if)#encap ppp
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
router2(config)#isdn switch-type basic-ni
router2(config)#dialer-list 1 protocol ip permit
router2(config)#username router1 password cisco
router2(config)#interface bri0/0
router2(config-if)#encap ppp
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
router2(config-if)#no shut
2. Issue the show isdn status command on both router1 and router2. You should see:Layer1: ActiveLayer2: Multiple Frame Established with spid1 valid.
routerx#show isdn status
3. Issue the show interfaces bri0 command on router1. This displays the signaling or D Channel. It should show ‘Up and Up (spoofing)’ if it is ready to handle a call request. Now issue the command show interfaces bri0 1 2. This should show the status of the two data, or B channels.
a. Question: what status are the B channels? Why?
router1# show interfaces bri0
router1# show interfaces bri0 1 2
4. From router1, ping the ISDN interface of router2. This should cause an ISDN call to be initiated and the pings should succeed.
a. Question: which configuration parameter(s) on router1 identifies the interesting traffic that will trigger a call?
router1# ping 200.10.1.2
5. Issue the show isdn status command on router1.
a. Question: what does it show for the ‘Layer 3 Status’?
router1# show isdn status
6. Issue the show interfaces bri0 1 2 command on router1.
a. Question: what is the status of the two B channels?
router1# show interfaces bri0 1 2
LAB 18 – ISDN BRI-BRI using Dialer Profiles
Router IP Address Mask SPID1 Local Tel# ISDN Switch
router1 200.10.1.1 /24 32177820010100 7782001 basic-ni
router2 200.10.1.2 /24 32177820020100 7782002 basic-ni
ISDN Parameters
1. In this lab, you will configure ISDN BRI on router1 and router2 using dialer profiles. With dialer profiles, you are effectively moving some
of the logical ISDN parameters from the physical BRI/PRI interface to a dialer interface. Any IP packet should represent ‘interesting traffic’
in this lab and either router should be able to initiate the call. PPP encapsulation and CHAP authentication should be used.
Refer to the table above for ISDN switch-type, IP addresses, subnet masks, and telephone numbers.
router1(config)# isdn switch-type basic-ni
router1(config)# dialer-list 1 protocol ip permit
router1(config)# username router2 password cisco
router1(config)# interface bri0
router1(config-if)# encap ppp
router1(config-if)# ppp authentication chap
router1(config-if)# isdn spid1 32177820010100
router1(config-if)# dialer pool-member 1
router1(config-if)# no shut
router1(config-if)# interface dialer 1
router1(config-if)# ip address 200.10.1.1 255.255.255.0
router1(config-if)# encap ppp
router1(config-if)# dialer-group 1
router1(config-if)# dialer pool 1
router1(config-if)# dialer remote-name router2
router1(config-if)# dialer string 7782002
router1(config-if)# ppp authentication chap
router2(config)# isdn switch-type basic-ni
router2(config)# dialer-list 1 protocol ip permit
router2(config)# username router1 password cisco
router2(config)# interface bri0/0
router2(config-if)# encap ppp
router2(config-if)# ppp authentication chap
router2(config-if)# isdn spid1 32177820020100
router2(config-if)# dialer pool-member 1
router2(config-if)# no shut
router2(config-if)# interface dialer 1
router2(config-if)# ip address 200.10.1.2 255.255.255.0
router2(config-if)# encap ppp
router2(config-if)# dialer-group 1
router2(config-if)# dialer pool 1
router2(config-if)# dialer remote-name router1
router2(config-if)# dialer string 7782001
router2(config-if)# ppp authentication chap
2. Issue the show isdn status command on both router1 and router2. You should see:
Layer1: Active
Layer2: Multiple Frame Established with spid1 valid.
routerx# show isdn status
3. Issue the show interfaces bri0 command on router1. This displays the signaling or D Channel. It should show ‘Up and Up (spoofing)’ if it is ready to
handle a call request. Now issue the command show interfaces bri0 1 2. This should show the status of the two data, or B channels.
router1# show interfaces bri0
router1# show interfaces bri0 1 2
4. From router1, ping the ISDN interface of router2. This should cause an ISDN call to be initiated and the pings should succeed.
router1# ping 200.10.1.2
6. Issue the show isdn status command on router1. Under the Layer 3 status in the output, it should show one call active.
router1# show isdn status
7. Issue the show interfaces bri0 1 2 command on router1. This shows the status of the B channels (data channels). One of the B channels
should have a status of ‘UP and UP’ indicating a successful call is in progress.
router1# show interfaces bri0 1 2
LAB 19 – ISDN PRI using Dialer Profiles
Router IP Address Mask SPID1 Local Tel# ISDN Switch
router1 201.10.1.1 /24 32177820010100 7782001 basic-ni
router2 201.10.1.2 /24 ------- 7792002 primary-5ess
1. In this lab, you will configure ISDN BRI on router1 and ISDN PRI on router2 using dialer profiles. Router2 has a primary rate ISDN interface (S0/0)
as well as a basic rate ISDN interface. Any IP packet should represent ‘interesting traffic’ in this lab and either router should be able to initiate the call.
PPP encapsulation and CHAP authentication should be used. Refer to the table above for ISDN switch-type, IP addresses, subnet masks, and
telephone numbers. a. Question: if this PRI was being configured in Europe, what would the options be for controller type, framing, and linecode?
b. Question: On the PRI interface statement, what is the significance of :23
router1(config)# isdn switch-type basic-ni
router1(config)# dialer-list 1 protocol ip permit
router1(config)# username router2 password cisco
router1(config)# interface bri0/0
router1(config-if)# encap ppp
router1(config-if)# ppp authentication chap
router1(config-if)# isdn spid1 32177820010100
router1(config-if)# dialer pool-member 1
router1(config-if)# no shut
router1(config-if)# interface dialer 2
router1(config-if)# ip address 201.10.1.1 255.255.255.0
router1(config-if)# encap ppp
router1(config-if)# dialer-group 1
router1(config-if)# dialer pool 1
router1(config-if)# dialer remote-name router2
router1(config-if)# dialer string 7792002
router1(config-if)# ppp authentication chap
router2(config)# isdn switch-type primary-5esss
router2(config)# dialer-list 1 protocol ip permit
router2(config)# username router1 password cisco
router2(config)# controller t1 0/0
router2(config-controller)# framing esf
router2(config-controller)# linecode b8zs
router2(config-controller)# pri-group timeslots 1-24
router2(config-controller)# exit
router2(config)# interface serial0/0:23
router2(config-if)# encapsulation ppp
router2(config-if)# ppp authentication chap
router2(config-if)# dialer pool-member 2
router2(config-if)# no shut
router2(config-if)# interface dialer 2
router2(config-if)# ip address 201.10.1.2 255.255.255.0
router2(config-if)# encapsulation ppp
router2(config-if)# dialer-group 1
router2(config-if)# dialer pool 2
router2(config-if)# dialer remote-name router1
router2(config-if)# dialer string 7782001
router2(config-if)# ppp authentication chap
2. Issue the show isdn status command on both router1 and router2. You should see:Layer1: Active Layer2: Multiple Frame Established routerx# show isdn status
3. From router1, ping the ISDN interface of router2. This should cause an ISDN call to be initiated and the pings should succeed.
router1# ping 201.10.1.2
4. Issue the show isdn status command on router1. Under the Layer 3 status in the output, it should show one call active.
router1# show isdn status
5. Issue the show interfaces bri0 1 2 command on router1. This shows the status of the B channels (data channels). One of the B channels should
have a status of ‘UP and UP’ indicating a successful call is in progress.
router1# show interfaces bri0 1 2
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