Ghost imaging, typically referred to as Ghost casting (or cloning) is a software program primarily based knowledge backup course of the place contents of a pc are copied and into group of recordsdata referred to as as a picture. The ghost picture copies the complete contents to a different server or machine together with configuration data and software
The aim of the ghost picture (Ghosting or Ghost casing) is to expedite technique of cloning from one system onto different programs, or to allow a fast restore of a system. It permits migration from one disk or PC to a different.
Ghost Casting Throughout VLANs
Instance State of affairs: Configuring Connectivity Between Ghost Server and Shopper Throughout VLANs
Beneath is a situation the place Ghost Server in Vlan 10 (IP handle of ghost Server = 192.168.10.10). There are two DHCP servers additionally in vlan 10 with IP addresses 192.168.10.11 and 192.168.10.12.
The Ghost purchasers (workstations) are in Vlan 20 (IP handle of Ghost purchasers = 192.168.20.10 and 11 respectively).
Pre-requisites:
Requirement is to have Ghost shopper in vlan 20 to find a way attain each unicast and multicast (ghost casting) classes to the ghost server in vlan 10.
To do that the next is required on a cisco Layer 3 change with cisco IOS –
interface vlan 1ip igmp snooping querier
!
interface Vlan10
ip pim sparse-dense-mode
!
interface Vlan20
ip helper-address 192.168.10.10
ip helper-address 192.168.10.11
ip helper-address 192.168.10.12
ip pim sparse-dense-mode
Key issues right here –
1 – The ip pim spare-dense-mode must go on every VLAN that ghosting shall be used on.
2 – “ip helper-address” command is used to ahead the broadcasts for DHCP addresses to the DHCP servers and likewise required if we wish the ghost session to mechanically detect the place the ghost server is while not having to enter the IP handle manually.
Proceed Studying:
Managing Cisco DHCP Shopper Identifier
Understanding Dora Course of in DHCP
