eccomi qua...ho usato tutto il giorno il router Cisco per provarlo e per documentarti quello che intendevo....
la mia premessa è che abito in una zona dove quando arriva la notte (leggi umidità) sulla mia linea telefonica si presentano dei "rumori" del segnale...ho contattato più volte la Telecom al riguardo ma niente....mi sono abituato a ciò e per cui ci convivo....
il problema è che ogni tanto perdo il segnale della linea ADSL, succede sia con il router Cisco che con quello Netgear, ma il router Netgear dopo 30sec-1min ritrova la linea...si riconnette e riparte il servizio internet...il router Cisco, perde la linea--->ritrova la linea---->non riparte il servizio internet
ti posto i messaggi del router Cisco in fase di avvio router e connessione ADSL
Codice: Seleziona tutto
*Mar  1 00:00:16.535: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
*Mar  1 00:00:16.535: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up
*Mar  1 00:00:16.535: %LINK-3-UPDOWN: Interface Serial0/0, changed state to down
*Mar  1 00:00:16.539: %LINK-3-UPDOWN: Interface Serial0/1, changed state to down
*Mar  1 00:00:17.572: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to down
*Mar  1 00:00:17.572: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
*Mar  1 00:00:17.572: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down
*Mar  1 00:00:17.572: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to down
*Mar  1 00:00:18.510: %LINEPROTO-5-UPDOWN: Line protocol on Interface NVI0, changed state to up
*Mar  1 00:00:25.898: %SYS-5-CONFIG_I: Configured from memory by console
*Mar  1 00:04:39.216: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up
*Mar  1 00:04:39.745: %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to administratively down
*Mar  1 00:04:39.749: %LINK-5-CHANGED: Interface Serial0/0, changed state to administratively down
*Mar  1 00:04:40.197: %LINK-5-CHANGED: Interface Serial0/1, changed state to administratively down
*Mar  1 00:04:40.370: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C2600 Software (C2600-ADVSECURITYK9-M), Version 12.4(25a), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Fri 22-May-09 21:06 by prod_rel_team
*Mar  1 00:04:40.370: %SNMP-5-COLDSTART: SNMP agent on host Router is undergoing a cold start
*Mar  1 00:04:40.414: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up
*Mar  1 00:05:25.536: %LINK-3-UPDOWN: Interface ATM0/2, changed state to up
*Mar  1 00:05:26.537: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/2, changed state to up
*Mar  1 00:05:33.361: %DIALER-6-BIND: Interface Vi2 bound to profile Di0
*Mar  1 00:05:33.365: %LINK-3-UPDOWN: Interface Virtual-Access2, changed state to up
*Mar  1 00:05:36.522: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to up
poi perde la linea
Codice: Seleziona tutto
*Mar  1 08:16:44.384: %LINK-3-UPDOWN: Interface ATM0/2, changed state to down
*Mar  1 08:16:45.313: %LINK-3-UPDOWN: Interface Virtual-Access2, changed state to down
*Mar  1 08:16:45.317: %DIALER-6-UNBIND: Interface Vi2 unbound from profile Di0
*Mar  1 08:16:45.385: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/2, changed state to down
*Mar  1 08:16:46.315: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to down
*Mar  1 08:17:04.537: %LINK-3-UPDOWN: Interface ATM0/2, changed state to up
*Mar  1 08:17:05.538: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/2, changed state to up
*Mar  1 08:17:11.588: %LINK-3-UPDOWN: Interface Virtual-Access2, changed state to up
*Mar  1 08:17:16.705: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to up
*Mar  1 08:19:14.618: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to down
*Mar  1 08:19:20.744: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to up
Router>ena
Password: 
Router#show 
*Mar  1 08:21:18.645: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to up  
*Mar  1 08:21:24.771: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to up
% Type "upgrade ?" for a list of subcommands
Router#ping 74.125.39.147
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 74.125.39.147, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
poi cerca nuovamente la riconnessione (ti ho postato pure la "show route ip" e la "show ip int brief")
Codice: Seleziona tutto
Router#ping 74.125.39.147
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 74.125.39.147, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Router#
*Mar  1 08:23:22.673: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to down
*Mar  1 08:23:28.799: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to up
Router#ping 74.125.39.147
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 74.125.39.147, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Router#show ip int brief
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            192.168.1.254   YES NVRAM  administratively down down    
Serial0/0                  unassigned      YES NVRAM  administratively down down    
FastEthernet0/1            192.168.1.254   YES NVRAM  up                    up      
Serial0/1                  unassigned      YES NVRAM  administratively down down    
ATM0/2                     unassigned      YES NVRAM  up                    up      
ATM0/2.1                   unassigned      YES unset  up                    up      
NVI0                       unassigned      NO  unset  up                    up      
Virtual-Access1            unassigned      YES unset  up                    up      
Virtual-Access2            unassigned      YES unset  up                    up      
Dialer0                    unassigned      YES IPCP   up                    up      
Dialer1                    unassigned      YES NVRAM  up                    up      
Router#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area 
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route
Gateway of last resort is 0.0.0.0 to network 0.0.0.0
C    192.168.1.0/24 is directly connected, FastEthernet0/1
S*   0.0.0.0/0 is directly connected, Dialer0
Router#
ammetto di essere completamente a digiuno di queste tipologie di configurazioni Cisco ma ho notato che la connessione ADSL parte solo e solamente dopo la comparsa di questo messaggio 
Codice: Seleziona tutto
*Mar  1 08:16:45.317: %DIALER-6-UNBIND: Interface Vi2 unbound from profile Di0
per questo chiedevo se era possibile far ripartire la connessione ADSL come se il router fosse stato accesso per la prima volta