es used, 950488 available, 4194304 total] 4096K bytes of processor board System flash (Read ONLY) Chip Bank Code Size Name 1 1 89A2 1024KB INTEL 28F008SA 2 1 89A2 1024KB INTEL 28F008SA 3 1 89A2 1024KB INTEL 28F008SA 4 1 89A2 1024KB INTEL 28F008SA Executing current image from System flash

, ( ) (IOS - - !). l , .

, : show flash err (-, ).

tftp: copy flash tftp, , ( 666).

tftp: copy startup-config/running-config tftp

tftp: copy tftp startup-config/running-config (-, , , ).

tftp ( !!!): copy tftp flash

, IOS , IOS , ROM ( Break , no boot system flash).

- ! . copy tftp flash IOS ( bootstrap ), flash load helper, , RO, , tftp ( - , ;). (copy run start). - , , - . , - tftp . p.s. - ROM ( ROM , ROM IOS), 4 0-0-0-1.

: copy run start

: copy start run

: show version

: verify flash

Cisco 3xxx Cisco 7xxx.

: configure memory

: erase startup

/ : show run/start

NVRAM , .

: 16 . : config-register. 4 (3,2,1, 0) :

( : network-config):
boot network [tftp] - [ip-]
service config

( : network-config):
boot host [tftp] - [ip-]
service config

:

 

ClickStart: Cisco 1003, 1004 1005 WWW ( ISDN, Frame Relay ).

AutoInstall: , (Ethernet, FDDI, HDLC, Frame Relay) - , ( ).

Setup: . ( AUX ).

sreamline setup ( RXBOOT ROM) : , . 

( 1 1993 ) UTC (Coordinated Universal Time) - , GMT. NTP ( - - ), SNTP 1000 ( - ).

TFTP :

RARP ( - broadcast UDP - ip forward-protocol udp 111, RP MAC- , ip helper-adress -- - , - rpc.bootparamd SunOS - ):
cat(config-if)>ip rarp-server ip---

rcp rsh :

HTTP- ( , - ) - :
ip http server
ip http port 80  

prompt -
hostname -
alias -EXEC - - - -
show aliases [-EXEC] -
load-interval - 

description -
hold-queue in/out -
bandwidth kilobits - , , TCP
delay - - ( )
keepalive - ( 3 )
mtu

async: 8 Cisco 2509, 16 Cisco 2511, AUX , ( : 38400, - ).

line.

:
interface async -

: - SLIP PPP. SLIP .

: (dedicated): EXEC, :
async mode interactive/dedicated

:
async dynamic routing

( , )

  1. :
    interface group-async unit-number

    member -
    group-range low-number high-number -

(2505, 2507, 2516)

hub ethernet number port
no shutdown
auto-polarity
link-test
source-address [MAC-address] - MAC-

loopback ( BGP-, )

interface loopback number

null ( /dev/null)

interface null 0

(serial)

interface serial
encapsulation atm-dxi/hdlc/frame-relay/ppp/sdlc-primary/sdlc-secondary/smds/stun/x25 - HDLC ( , )
compress stac - CPU 65%,
pulse-time -

( )

:

  3. WAN

:

  1. -
  2. -
  3. ( GRE, )

:

  1. CPU

interface tunnel

tunnel source ip-address--
tunnel destination ip-address--
tunnel mode aurp/cayman/dvmrp/eon/gre ip/nos -
tunnel checksum - ( )
tunnel key - ( )
tunnel sequence-datagramms - , ( )

show async status
show interface async
show compress
show controller -
show interface accounting
show interface
clear counters
show protocols
show version
clear interface
clear line
shutdown
no shutdown
down-when-looped - , loopback ( backup)  IP- 

ip address-pool local
ip local pool default -ip- -ip-
interface Group-Async1
ip unnumbered Ethernet0
ip tcp header-compression passive
encapsulation ppp
bandwidth 112
delay 20000
keepalive 10
async mode interactive
no cdp enable
 : peer default ip address pool, - (- )
group-range 1 16

- , :
member peer default ip address IP-

11.0(1) , 11.1(12)  

.

service tcp-small-servers # echo, chargen ..
hostname cat2511-wb # , ,, -
lock timezone MSK 3 #
lock summer-time MSD recurring last Sun Mar 2:00 last Sun Oct 2:00 #
able secret < > #
able password < > # ,
ip subnet-zero #
ip tcp synwait-time 120 #
ip tcp path-mtu-discovery # MTU
ip accounting-threshold 256 #
ip accounting-list 194.84.39.0 0.0.0.255 #
interface Ethernet0 # Ethernet
ip address 194.84.39.24 255.255.255.224 # IP ethernet- ( )
ip address 194.87.163.24 255.255.255.224 secondary # IP- ( ISP
it # Ethernet
interface Serial0 #
o ip address #
shutdown # -//-
it #
interface Serial1 #
o ip address #
shutdown # -//-
it #
ip domain-name deol.ru. #
ip name-server 194.84.39.28 # DNS- ( 6 )
ip route 0.0.0.0 0.0.0.0 194.84.39.26 # (, , ""
snmp-server community public RO # SNMP ( )
line con 0 #
ec-timeout 0 0 # -
it #
line 1 16 #
ec-timeout 0 0 # -
odem InOut #
tocommand telnet 194.84.39.28 # , telnet..., - (, , )
transport input none # ( )
transport preferred none #
scape-character NONE # telnet'
stopbits 1
rxspeed 115200 #
txspeed 115200 #
flowcontrol hardware
it #
line aux 0 #
transport input all #
it #
line vty 0 4 # ( , )
ec-timeout 0 0 # -
assword <> # ; ,
login # ( )
it #  (tacacs+)

(tacacs+) - , UNIX- : , . , :
aa new-model # tacacs+,
aa authentication login default tacacs+ enable # - tacacs+ , ,
aa authentication ppp default if-needed none # PPP, , ( ?)
aa authorization exec tacacs+ if-authenticated # EXEC (shell ) tacacs+, , , - tacacs+ ( telnet ppp)
aa authorization commands 1 tacacs+ if-authenticated # 1 () tacacs+, , ,
aa authorization commands 15 tacacs+ if-authenticated # 15
() tacacs+, , ,
aaa authorization network tacacs+ if-authenticated # , - tacacs+, , ,
aa accounting network stop-only tacacs+ # tacacs+ ( PPP-, )
aa accounting connection stop-only tacacs+ # tacacs+ telnet-
aa accounting system stop-only tacacs+ # tacacs+ (, )
: aaa authentication local-override ( username admin privilege 15 password <>), , ( EXEC :( ! bbs , tacacs+ .
tacacs-server host 194.84.39.28 # , tacacs+
tacacs-server host 194.84.39.27 # , tacacs+ ( , )
tacacs-server key <> # , tacacs+  PPP-