Configurazioni di base router cisco
hostname
<nome_router>
enable password <password>
!
isdn switch-type basic-net3
ip subnet-zero
!
interface BRI0
no ip address
no ip directed-broadcast
encapsulation ppp
dialer pool-member 1
ppp authentication chap
isdn switch-type basic-net3
!
interface Dialer1
ip address <x.x.x.x y.y.y.y|negotiated>
no ip directed-broadcast
encapsulation ppp
dialer remote-name <nome del router remoto>
dialer idle-timeout 300
dialer string <numero di telefono>
dialer pool 1
dialer-group 1
ppp authentication chap
ppp chap hostname <username>
ppp chap password <password>
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
!
dialer-list 1 protocol ip permit
!
line vty 0 4
password <password>
login
!
end
hostname
<nome_router>
enable password <password>
!
isdn switch-type basic-net3
ip subnet-zero
!
interface Ethernet0
ip address <ip> <netmask>
no ip directed-broadcast
no ip proxy-arp
ip nat inside
!
interface BRI0
no ip address
no ip directed-broadcast
encapsulation ppp
dialer pool-member 1
ppp authentication chap
no cdp enable
ppp authentication chap pap callin
isdn switch-type basic-net3
!
interface Dialer1
ip address negotiated
no ip directed-broadcast
no ip proxy-arp
ip nat outside
encapsulation ppp
dialer remote-name <nome del router remoto, non indispensabile>
dialer pool 1
dialer string <numero di telefono>
dialer hold-queue 10
dialer idle-timeout 300
dialer-group 1
no cdp enable
ppp authentication chap pap callin
ppp chap hostname <username>
ppp chap password <password>
ppp pap sent-username <username>@<provider> password
<password>
!
ip classless
ip nat inside source list 10 interface Dialer1 overload
ip route 0.0.0.0 0.0.0.0 Dialer1
!
access-list 10 permit <net che deve essere nattata per accedere ad
Internet> <netmask invertita>
dialer-list 1 protocol ip permit
!
line vty 0 4
password <password>
login
!
end
Configurazione minimale di una ADSL (PPPoverATM) 1
hostname <nome_router>
enable password <password>
!
ip subnet-zero
ip name-server <Ip_DNS>
!
interface Ethernet0
ip address <Ip_LAN> <subnet-mask>
ip nat inside
!
interface ATM0
no ip address
no ip directed-broadcast
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5snap
oam-pvc manage
protocol ppp dialer
dialer pool-member 1
!
interface Dialer1
ip address negotiated
no ip directed-broadcast
encapsulation ppp
ip nat outside
dialer pool 1
dialer-group 1
ppp pap sent-username <utente_adsl> password <password_adsl>
!
ip nat inside source list 101 interface Dialer1 overload
ip classless
no ip http server
!
access-list 101 permit ip any any
dialer-list 1 protocol ip permit
!
ip route 0.0.0.0 0.0.0.0 Dialer0
!
line vty 0 4
password <password>
login
!
end
Configurazione minimale di una ADSL (PPPoverATM) 2
hostname <nome_router>
enable password <password>
!
ip subnet-zero
ip name-server <Ip_DNS>
!
interface Ethernet0
ip address <Ip_LAN> <subnet-mask>
ip nat inside
!
interface ATM0
no ip address
no ip directed-broadcast
atm vc-per-vp 64
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5mux ppp dialer
oam-pvc manage
dialer pool-member 1
!
interface Dialer1
ip address negotiated
no ip directed-broadcast
encapsulation ppp
ip nat outside
dialer pool 1
dialer-group 1
ppp pap sent-username <utente_adsl> password <password_adsl>
!
ip nat inside source list 101 interface Dialer1 overload
ip classless
no ip http server
!
access-list 101 permit ip any any
dialer-list 1 protocol ip permit
!
ip route 0.0.0.0 0.0.0.0 Dialer1
!
line vty 0 4
password <password>
login
!
end
Configurazione minimale di una ADSL (con IP Pubblico)
hostname <nome_router>
enable password <password>
!
ip subnet-zero
ip name-server <Ip_DNS>
!
interface Ethernet0
ip address <Ip_LAN> <subnet-mask>
ip nat inside
!
interface ATM0
no ip address
no ip mroute-cache
ip nat outside
no atm ilmi-keepalive
dsl operating-mode auto
!
interface ATM0.1 point-to-point
ip address <ip_pubblico_acquistato> 255.255.255.252
ip nat outside
pvc 8/35
oam-pvc manage
protocol ip <ip_pubblico_POP> broadcast
!
ip nat inside source list 101 interface ATM0.1 overload
ip classless
!
access-list 101 permit ip any any
dialer-list 1 protocol ip permit
!
ip route 0.0.0.0 0.0.0.0 ATM0.1
no ip http server
!
line vty 0 4
password <password>
login
!
end
Configurazione minimale di una ADSL (PPPoverEthernet)
hostname <nome_router>
enable password <password>
!
ip subnet-zero
ip name-server <Ip_DNS>
!
vpdn enable
no vpdn logging
!
vpdn-group 1
request-dialin
protocol pppoe
!
interface Ethernet0
descritpion
Connessione LAN
ip address <Ip_LAN> <subnet-mask>
!
interface Ethernet1
descritpion Connessione verso router Adsl
pppoe enable
pppoe-client dial-pool-number 1 dial-on-demand
!
interface Dialer1
ip address negotiated
ip mtu 1492
encapsulation ppp
dialer pool 1
dialer idle-timeout 180 either
dialer hold-queue 100
dialer-group 1
!
dialer-list 1 protocol ip permit
!
ip route 0.0.0.0 0.0.0.0 Dialer1 permanent
no ip http server
!
line vty 0 4
password <password>
login
!
end
Configurazione minimale di un servizio generico Frame Relay
hostname
<nome_router>
!
enable password <password>
!
ip subnet-zero
!
interface Serial0
no ip address
no ip directed-broadcast
encapsulation frame-relay
no fair-queue
!
interface Serial0.1 point-to-point
ip address <x.x.x.x> <y.y.y.y>
no ip directed-broadcast
frame-relay interface-dlci <numero_DLCI>
!
ip classless
!
line vty 0 4
password <password>
login
!
end
Come verificare se il router funziona correttamente:
connettere sulla seriale un secondo router tramite cavo
DCE (femmina) e configurarlo nel modo seguente:
frame-relay switching
!
interface Serial0
no ip address
encapsulation frame-relay
no ip mroute-cache
clock rate 256000
frame-relay intf-type dce
keepalive 15
verificare quindi lo stato delle seriali di entrambi i
router, che dovranno essere ovviamente:
Serial0/0 is up, line protocol is up
quindi immettere su entrambi i router il comando:
show frame-relay lmi
verificando il numero degli Enquires Sent/Received:
LMI Statistics for interface Serial0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE
Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 180 Num Status msgs Rcvd 180
Num Update Status Rcvd 0 Num Status Timeouts 0
LMI Statistics for interface Serial0 (Frame Relay DCE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE
Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Num Status Enq. Sent 180 Num Status msgs Rcvd 180
Num Update Status Rcvd 0 Num Status Timeouts 0
hostname
<nome_router>
!
enable password <password>
!
x25 routing
!
interface Serial0
encapsulation x25
x25 address <nua X25>
x25 htc <numero circuiti virtuali>
x25 win <window in>
x25 wout <window out>
x25 accept-reverse
x25 default pad
lapb N1 8216
!
line vty 0 4
password <password>
login
!
end