Newsgroup: it.comp.reti.cisco
Titolo: Cisco 827 e rete con 32 indirizzi IP - Non fa il routing (post config)

Come da oggetto ho u 827 con 32 indirizzi IP nella rete locale.
Configuro il router ed è tutto ok, la connessione sembra andare ma
dalla rete locale non riesco a uscire. Facendo un trace su un host
esterno vedo che mi si ferma all'indirizzo IP del router in rete
locale. A mia disp per la configurazione avevo solo userID/Pwd,
encapsulation aal5mux ppp dialer  e VPI/VCI 8/35
Posto qui la config sperando di risolvere qualcosa.
Grazie
Bye, Stefano
-------------------------------------------------------------
Current configuration : 1441 bytes
!
version 12.1
no service single-slot-reload-enable
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname gw-xxx-netesi
!
logging rate-limit console 10 except errors
!
username Cisco privilege 15 password 0 $1$W1fA$o1oSEpahIwFVFQsbWn
ip subnet-zero
no ip finger
ip domain-name 
erresse.it
!
no ip dhcp-client network-discovery
!
!
!
interface Ethernet0
 description Ethernet LAN
 ip address 217.27.80.181 255.255.255.224
 ip access-group inside in
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no ip route-cache
 no ip mroute-cache
 no cdp enable
!
interface ATM0
 description Connesso a rete DSL
 no ip address
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no ip route-cache
 no ip mroute-cache
 no atm ilmi-keepalive
 pvc 8/35 
  encapsulation aal5mux ppp dialer
  dialer pool-member 1
 !        
 bundle-enable
 dsl operating-mode auto
 hold-queue 224 in
!
interface Dialer1
 description Connesso a NETESI
 ip address negotiated
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 encapsulation ppp
 no ip route-cache
 no ip mroute-cache
 dialer pool 1
 no cdp enable
 ppp authentication pap callin
 ppp pap sent-username 
xx...@pubnet.netesi.net
 password 7
1AA0A13111D7D7329
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
ip http server
!
no cdp run
!
line con 0
 transport input none
 stopbits 1
line vty 0 4
 login
!
scheduler max-task-time 5000
end

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Può darsi che i tuoi indirizzi pubblici non siano ancora stati instradati
sul pop telecom, prova ad uscire con un pat sulla dialer dando alle macchine
degli indirizzi privati.
Ciao
sh ip int brie
e guarda che indirizzo ha la dialer e fai qualche prova di ping da internet
usando un'altra connessione.

 usando un'altra connessione.
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Allora, prova a resettare la configurazione fatta con un bel wr erase e poi
segui i consigli di questo sito che è uguale alla config sui router telecom
http://assistenza.tiscali.it/adsl/cisco827_router/index.html
Qui in più rispetto a quello che vuoi tu c'è il nat, mentre penso che tu
voglia usare indirizzi pubblici.
Facendo sh ip int  le interfacce sono up ?
Ciao

Allora...resetto tutto e copio la config suggerita. Mappo il nat
nella rete interna per provare. Non funziona niente. Posto sotto la
config
e l'output di sh ip int
Thx
Bye, Stefano
--------------------------------------------------------------------
Router>sh ip int
ATM0 is up, line protocol is up
  Internet protocol processing disabled
Dialer0 is up, line protocol is up
  Internet address will be negotiated using IPCP
  Broadcast address is 255.255.255.255
  MTU is 1500 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is not set
  Inbound  access list is not set
  Proxy ARP is enabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are always sent
  ICMP unreachables are always sent
  ICMP mask replies are never sent
  IP fast switching is enabled
  IP fast switching on the same interface is enabled
  IP Flow switching is disabled
  IP Feature Fast switching turbo vector
  IP multicast fast switching is enabled
  IP multicast distributed fast switching is disabled
  IP route-cache flags are Fast
  Router Discovery is disabled
  IP output packet accounting is disabled
  IP access violation accounting is disabled
  TCP/IP header compression is disabled
  RTP/IP header compression is disabled
  Probe proxy name replies are disabled
  Policy routing is disabled
  Network address translation is enabled, interface in domain outside
  WCCP Redirect outbound is disabled
  WCCP Redirect inbound is disabled
  WCCP Redirect exclude is disabled
  BGP Policy Mapping is disabled
Ethernet0 is up, line protocol is up
  Internet address is 
192.168.1.1/24
  Broadcast address is 255.255.255.255
  Address determined by non-volatile memory
  MTU is 1500 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is not set
  Inbound  access list is not set
  Proxy ARP is enabled
  Security level is default
  Split horizon is enabled
  ICMP redirects are always sent
  ICMP unreachables are always sent
  ICMP mask replies are never sent
  IP fast switching is enabled
  IP fast switching on the same interface is disabled
  IP Flow switching is disabled
  IP Feature Fast switching turbo vector
  IP multicast fast switching is enabled
  IP multicast distributed fast switching is disabled
  IP route-cache flags are Fast
  Router Discovery is disabled
  IP output packet accounting is disabled
  IP access violation accounting is disabled
  TCP/IP header compression is disabled
  RTP/IP header compression is disabled
  Probe proxy name replies are disabled
  Policy routing is disabled
  Network address translation is enabled, interface in domain inside
  WCCP Redirect outbound is disabled
  WCCP Redirect inbound is disabled
  WCCP Redirect exclude is disabled
  BGP Policy Mapping is disabled
Router#show run
Building configuration...
Current configuration : 1104 bytes
!
version 12.1
no service single-slot-reload-enable
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
logging rate-limit console 10 except errors
enable secret 5 $1$TgE.$E.0WPz4VlwxLs.IGcpOdv1
!
ip subnet-zero
no ip finger
!
no ip dhcp-client network-discovery
!
!
!
interface Ethernet0
 ip address 192.168.1.1 255.255.255.0
 ip nat inside
!
interface ATM0
 no ip address
 no atm ilmi-keepalive
 pvc 8/35 
  encapsulation aal5mux ppp dialer
 !
 bundle-enable
 dsl operating-mode auto
!
interface Dialer0
 ip address negotiated
 ip nat outside
 encapsulation ppp
 dialer pool 1
 ppp chap hostname 
err...@pubnet.netesi.net
 ppp chap password 7 131D0F0A125B567D2A
 ppp pap sent-username 
err...@pubnet.netesi.net
 password 7
05131E17381B1C5E18
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0
ip http server
!
ip nat inside source list 1 interface Dialer0 overload
access-list 1 permit 192.168.1.0 0.0.0.255
!
line con 0
 transport input none
 stopbits 1
line vty 0 4
 password tesaluti
 login
!
scheduler max-task-time 5000
end
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Ciao,
questo č l'ultimo tentativo poi non saprei piů cosa dirti nel caso di pppoa,
a meno che non sia una pppoe e allora le cose cambiano notevolmente.
Prova a modificare il nat facendolo non sull'indirizzo della dialer che ti
viene assegnato in modo automatico ma su uno a scelta degli indirizzi da te
comprati.
ip nat inside source list 1 pool internet overload
ip nat pool internet 217.27.80.182 217.27.80.182 netmask 255.255.255.224
inseriscile al posto delle altre
ciao