IOS Upgrade

[gauravpundir231]

Hi All,

Please let me know the ways to upgrade the IOS in routers and switches without TFTP server.

And if we want to do it remotely.

[Cisco Freak]

Router#copy ?
  /erase          Erase destination file system.
  /error          Allow to copy error file.
  /noverify       Don't verify image signature before reload.
  /verify         Verify image signature before reload.
  archive:        Copy from archive: file system
  cns:            Copy from cns: file system
  flash0:         Copy from flash0: file system
  flash1:         Copy from flash1: file system
  flash:          Copy from flash: file system
  ftp:            Copy from ftp: file system
  http:           Copy from http: file system
  https:          Copy from https: file system
  null:           Copy from null: file system
  nvram:          Copy from nvram: file system
  rcp:            Copy from rcp: file system
  running-config  Copy from current system configuration
  scp:            Copy from scp: file system
  security:       Copy from security: file system
  startup-config  Copy from startup configuration
  system:         Copy from system: file system
  tar:            Copy from tar: file system
  tftp:           Copy from tftp: file system
  tmpsys:         Copy from tmpsys: file system
  xmodem:         Copy from xmodem: file system
  ymodem:         Copy from ymodem: file system

You can use any one of the method that is shown above to copy the image to device.

[Joseph W. Doherty]

Also rcp: and ymodem:.

Also keep in mind, some routers support some form of insertable flash, like USB or CF, if so, that might be used to install an IOS remotely.

[Leo Laohoo]

FTP, HTTP/HTTPS, SCP.

[gauravpundir231]

Thanks GUYS