Pentru ca nu am de gand sa insist mult asupra protocoalelor de retea, voi trece direct la routerele Cisco, dezvoltand pe parcursul articolelor modul de functinare, comenzile, diferitele tipuri de configuratii, etc.
router_cisco_1800
Ca orice “cutiuta cu maimutele”, un router Cisco e plin de “maimutele”. In cazul nostru – procesor, memorie RAM, ROM, Flash etc.
Placa Router
Conexiunile sunt cele standard, cu optiune de a adauga module in functie de necesitati:
Router - Conexiuni
Dupa cum a-ti citit ceva mai sus, componentele unui router cisco sunt asemanatoare componentelor unui calculator. Logica ne indeamna sa credem ca exista si un sistem operativ care sa beneficieze de respectivele componente. Ceea ce e adevarat.
In cazul Cisco, OS -ul se numeste IOS, si are diferite variante, in functie de tipul routerului.
Trebuie sa precizez faptul ca, in prima instanta un router cisco nu se poate accesa in mod direct prin apelarea Ip-ului, ci doar prin conectarea unui cablu de consola :
Cablu de consola
Respectivul accesoriu se conecteaza intre portul de consola al routerului si portul serial al calculatorului si se acceseaza prin intermediul unui programel numit Hyperterminal pe care il gasiti in “program Files – Accesories – Communications” in cazul windows… Aveti nevoie si de setarea unor configuratii pentru ca programul sa poata comunica cu routerul:
Selectarea Portului COM
Configuratie Hyperterminal
odata stabilita conexiunea, in prima instanta vom putea citi ceva de genul:
System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.
cisco 2620 (MPC860) processor (revision 0×200) with 60416K/5120K bytes of memory
Self decompressing the image :
########################################################################## [OK]
Restricted Rights Legend
Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software – Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.
cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706
Cisco Internetwork Operating System Software
IOS ™ C2600 Software (C2600-I-M), Version 12.2(28), RELEASE SOFTWARE (fc5)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Wed 27-Apr-04 19:01 by miwang
cisco 2620 (MPC860) processor (revision 0×200) with 60416K/5120K bytes of memory
.
Processor board ID JAD05190MTZ (4292891495)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
1 FastEthernet/IEEE 802.3 interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
— System Configuration Dialog —
Continue with configuration dialog? [yes/no]: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
Copyright (c) 2000 by cisco Systems, Inc.
cisco 2620 (MPC860) processor (revision 0×200) with 60416K/5120K bytes of memory
Self decompressing the image :
########################################################################## [OK]
Restricted Rights Legend
Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software – Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.
cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706
Cisco Internetwork Operating System Software
IOS ™ C2600 Software (C2600-I-M), Version 12.2(28), RELEASE SOFTWARE (fc5)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Wed 27-Apr-04 19:01 by miwang
cisco 2620 (MPC860) processor (revision 0×200) with 60416K/5120K bytes of memory
.
Processor board ID JAD05190MTZ (4292891495)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
1 Low-speed serial(sync/async) network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
— System Configuration Dialog —
Continue with configuration dialog? [yes/no]: n
Press RETURN to get started!
Abia de aici incepe adevarat distractie. Dar despre ea, in articolul viitor!
