XModem Flash Recovery of new c3560, c3560e, c3750, c3750e, etc...

Fri, 12 Feb 2010 16:47:32 +0000

Right at the moment I’m sitting in one of our wireclosets, watching an c3750 (hopefully) recovering its mind to its old function and behavior - through an XModem transfer of its current IOS. Because of an power failure on our campus the unit actually “bricked” - the flash system became corrupted and the unit did end up in the ROMMON Mode “switch:”.

Thats pretty bad - but not as bad as we couldn’t fix it.

c3560 Cheat

Thu, 27 Aug 2009 14:14:20 +0000

Hostname:

hostname test

Image Upgrade:

del /r /f flash:c3560-ipbase-mz.122-35.SE5  
copy tftp://192.168.2.1/images/c3560-ipbasek9-mz.122-46.SE.bin flash:

del - File
rm - Folder

Boot with other Image:

boot system c3560-advipservicesk9-mz.122-46.SE.bin

Portfast (on dhcpd Problems):

spanning-tree portfast

Switchport with Vlan 10:

interface FastEthernet0/1  
switchport access vlan 10  
switchport mode access  
description nativ  
macro description NATIV  
spanning-tree portfast

Description Vlan 10:

vlan 10 name testvlan

Trunkport:

interface GigabitEthernet0/1  
switchport trunk encapsulation dot1q  
switchport mode trunk  
ip dhcp snooping trust

DHCP Snooping:
Global Activate:

ip dhcp snooping vlan 1-4094  
no ip dhcp snooping information option  
ip dhcp snooping

Allow DHCP on Port:

Ios on Nico Maas

XModem Flash Recovery of new c3560, c3560e, c3750, c3750e, etc...

c3560 Cheat