Cisco switch

configuration dialog

• Cisco-switch-initial configuration dialog?

Unprivilegierter Modus

• Switch>

Befehle anzeigen

• Switch>?

Unprivilegierter Modus

• Switch>enable
• Switch#

Version anzeigen

• Switch#show version

Konfigurations Modus

• Switch#configure terminal
• Switch(config)#

Passwort setzen

• Switch(config)#enable password strenggeheim

IP setzen

• Switch(config)#interface vlan1
• Switch(config-if)#ip address 192.168.240.153 255.255.248.0
• Switch(config-if)#exit

Default Gateway

• Switch(config)#ip default-gateway 192.168.240.100

Webinterface aktivieren

• Switch(config)#ip http server
• Switch(config)#end

Speichern

• Switch# write memory

Schnittstelle aktivieren

• Switch#configure terminal
• Switch(config)#interface vlan 1
• Switch(config-if)#no shutdown

Webinterface

Als Passwort strenggeheim eingeben kein Username

Ping

• Switch#ping 192.168.240.200

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.240.200, timeout is 2 seconds:
!!!!!

Anzeige Flash

• Switch#show flash

Directory of flash:/

    2  -rwx        3096  Jan 26 2016 15:22:16 +00:00  multiple-fs
    3  -rwx        1590   Mar 1 1993 00:44:44 +00:00  config.old
  457  drwx         192   Mar 1 1993 00:35:33 +00:00  c3750-ipbasek9-mz.122-55.SE6
   84  -rwx        1940  Jan 26 2016 15:22:16 +00:00  private-config.text
   85  -rwx        3021  Jan 26 2016 15:22:16 +00:00  config.text

Anzeige Flash mit dir

• Switch#dir flash:

Directory of flash:/

    2  -rwx        3096  Jan 26 2016 15:22:16 +00:00  multiple-fs
    3  -rwx        1590   Mar 1 1993 00:44:44 +00:00  config.old
  457  drwx         192   Mar 1 1993 00:35:33 +00:00  c3750-ipbasek9-mz.122-55.SE6
   84  -rwx        1940  Jan 26 2016 15:22:16 +00:00  private-config.text
   85  -rwx        3021  Jan 26 2016 15:22:16 +00:00  config.text

Anzeige Directory

• Switch#dir c3750-ipbasek9-mz.122-55.SE6

 
 Directory of flash:/c3750-ipbasek9-mz.122-55.SE6/  

    4  drwx        1792   Mar 1 1993 00:28:51 +00:00  html
   82  -rwx    12098384   Mar 1 1993 00:35:33 +00:00  c3750-ipbasek9-mz.122-55.SE6.bin
   83  -rwx         681   Mar 1 1993 00:35:33 +00:00  info

Ios sichern

• Switch#copy flash:/c3750-ipbasek9-mz.122-55.SE6/c3750-ipbasek9-mz.122-55.SE6.bin tftp://192.168.240.200/cisco/

Address or name of remote host [192.168.240.200]? 
Destination filename [cisco/c3750-ipbasek9-mz.122-55.SE6.bin]? 
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Konfig sichern

• Switch#copy running-config tftp://192.168.240.200/cisco/c3750g.conf

Address or name of remote host [192.168.240.200]? 
Destination filename [cisco/c3750g.conf]? 
!!
4356 bytes copied in 1.409 secs (3092 bytes/sec

Telnet aktivieren

• Switch#configure terminal
• Switch(config)#aaa new-model
• Switch(config)#username admin password 0 geheim
• Switch(config)#line vty 0 4
• Switch(config-line)#transport input telnet

SSH aktivieren

• Switch(config)#ip domain-name xinux.org
• Switch(config)#hos
• Switch(config)#hostname c3750g
• c3750g(config)#
• c3750g(config)#crypto key generate rsa

The name for the keys will be: c3750g.xinux.org
Choose the size of the key modulus in the range of 360 to 2048 for your
  General Purpose Keys. Choosing a key modulus greater than 512 may take
  a few minutes.

How many bits in the modulus [512]: 
% Generating 512 bit RSA keys, keys will be non-exportable...[OK]

• c3750g(config)#ip ssh time-out 60
• c3750g(config)#ip ssh authentication-retries 2

Abschalten von telnet

• c3750g#configure terminal

Enter configuration commands, one per line.  End with CNTL/Z.

• c3750g(config)#line vty 0 4
• c3750g(config-line)#transport input ssh

Switche anzeigen

• c3750g#show switch

Switch/Stack Mac Address : 0012.d9a3.4400
                                          H/W   Current
Switch#  Role   Mac Address     Priority Version  State 
----------------------------------------------------------
*1       Master 0012.d9a3.4400     1      0       Ready               
 3       Member 0000.0000.0000     0      0       Provisioned

Löschen von Dateien

• c3750g#dir flash:

Directory of flash:/

    2  -rwx        4501  Jan 26 2016 18:03:22 +00:00  c3750g.conf
    3  -rwx        1590   Mar 1 1993 00:44:44 +00:00  config.old
  457  drwx         192   Mar 1 1993 00:35:33 +00:00  c3750-ipbasek9-mz.122-55.SE6
   84  -rwx        3096  Jan 26 2016 16:40:08 +00:00  multiple-fs
   85  -rwx        3019  Jan 26 2016 16:40:08 +00:00  private-config.text
   86  -rwx        3166  Jan 26 2016 16:40:08 +00:00  config.text
   87  -rwx        4501  Jan 26 2016 18:06:51 +00:00  c3750g.cfg
   88  -rwx     1556480  Jan 26 2016 18:08:11 +00:00  ccpexpressAdmin27.tar

15998976 bytes total (1767936 bytes free)

• c3750g#delete flash:/c3750g.conf

Delete filename [c3750g.conf]?  
Delete flash:/c3750g.conf? [confirm]

• http://www.thegeekstuff.com/2011/06/upgrade-cisco-ios-image/