Newsgroup: it.comp.reti.cisco
Titolo: problema di occupazione linea

Salve a tutti,
ho il problema che sfruttando il backup isdn su due router cisco
questi mi occupano entrambe le linee, cioč il router A (con nr.12345678)
fa una richiesta al router B aprendo una chiamata al 44444444
dopo che la connessione č stabilita, non capisco come mai il router
B non si accorga del collegamento esistente, e fa anche lui una chiamata
verso il router A.
router#sh isdn ac
--------------------------------------------------------------------------------
                                ISDN ACTIVE CALLS
--------------------------------------------------------------------------------
Call    Calling      Called       Remote  Seconds Seconds Seconds Charges
Type    Number       Number       Name    Used    Left    Idle 
Units/Currency
--------------------------------------------------------------------------------
In     12345678    44444444   test      695     640     259
Out   ---N/A---   12345678   test      460     640     259      0
--------------------------------------------------------------------------------
router#
Come faccio ad impedire al router B di fargli fare una chiamata facendogli
capire che la connessione giŕ esiste???
Grazie in anticipo 

 
Non e' che posti anche la configurazione, ripulita di info sensibili,
cosi' da capire come hai impostato le dialer ?
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Posta le conf, perché hai sicuramente un problema di routing.
Il router chiamato quando alza l'interfaccia dial non si accorge della nuova 
rotta
perché manca un proto di routing che glielo dica.
-- 
La fortuna aiuta gli audaci che hanno culo.

"Hartigan" <hart...@sincity.real.life> ha scritto nel messaggio 
news:%KxOg.23827$6Z1....@tornado.fastwebnet.it...

Certo,
Questa è quella del router centrale:
....
hostname router
..
...
..
username margherita password ..........
username puccia password ...........
!
interface Serial0/0.1 point-to-point
 description ATM verso Puccia
 bandwidth 2048
 ip address 10.0.0.1 255.255.255.0
 frame-relay interface-dlci 30 IETF
!
interface Serial0/0.2 point-to-point
 description ATM verso Margherita
 bandwidth 2048
 ip address 10.0.1.1 255.255.255.0
 frame-relay interface-dlci 20 IETF
!
!
interface BRI0/0
 ip address 10.0.8.254 255.255.255.0
 encapsulation ppp
 no ip route-cache
 no ip mroute-cache
 dialer idle-timeout 900
 dialer map ip 10.0.8.1 name margherita broadcast 12345678
 dialer map ip 10.0.8.2 name puccia broadcast 56789012
 dialer load-threshold 5 either
 dialer-group 1
 isdn switch-type basic-net3
 no fair-queue
 no cdp enable
 ppp authentication chap
!
interface Ethernet1/0
 ip address 192.168.0.128 255.255.255.0
 ip access-group inside in
 half-duplex
!
router eigrp 110
 redistribute static
 passive-interface BRI0/0
 network 10.0.0.0
 network 192.168.2.0
 network 192.168.3.0
  auto-summary
 no eigrp log-neighbor-changes
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.0.127 (route al firewall)
ip route 192.168.0.0 255.255.255.0 Ethernet1/0
ip route 192.168.2.0 255.255.255.0 Serial0/0.1
ip route 192.168.2.0 255.255.255.0 10.0.8.2 200
ip route 192.168.3.0 255.255.255.0 Serial0/0.2
ip route 192.168.3.0 255.255.255.0 10.0.8.1 200
ip route 192.168.4.0 255.255.255.0 Serial0/0.3
no ip http server
!
access-list 110 permit ip any any
access-list 110 deny   eigrp any any
dialer-list 1 protocol ip list 110
!
..
...
router#
Questa invece è quella del router remoto:
....
...
!
hostname margherita
!
!
!
username router password .........
no ip cef
!
!
!
isdn switch-type basic-net3
!
!
!
!
interface BRI0
 ip address 10.0.8.1 255.255.255.0
 encapsulation ppp
 no ip route-cache
 dialer idle-timeout 900
 dialer map ip 10.0.8.254 name router broadcast 44444444
 dialer load-threshold 5 either
 dialer-group 1
 isdn switch-type basic-net3
 ppp authentication chap
!
interface FastEthernet0
 ip address 192.168.3.127 255.255.255.0
 ip access-group inside in
 speed auto
!
interface Serial0
 description rete HDSL
 bandwidth 1536
 no ip address
 encapsulation frame-relay
!
interface Serial0.1 point-to-point
 description ATM verso sede centrale
 bandwidth 2048
 ip address 10.0.1.10 255.255.255.0
 ip access-group 110 in
 shutdown
 frame-relay interface-dlci 20 IETF
!
router eigrp 110
 redistribute static
 network 192.168.0.0
 auto-summary
 no eigrp log-neighbor-changes
!
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0.1
ip route 0.0.0.0 0.0.0.0 10.0.8.254 200
no ip http server
!
access-list 110 permit ip any any
access-list 110 deny   eigrp any any
dialer-list 1 protocol ip list 110
....
....
...
ecco cosa succede scrivendo..
router#sh isdn ac
--------------------------------------------------------------------------------
                                ISDN ACTIVE CALLS
--------------------------------------------------------------------------------
Call    Calling      Called       Remote  Seconds Seconds Seconds Charges
Type    Number       Number       Name    Used    Left    Idle 
Units/Currency
--------------------------------------------------------------------------------
In     12345678    44444444   margherita      281     690     209
Out   ---N/A---   12345678   margherita      272     738     161      0
--------------------------------------------------------------------------------