CONFIGURATION PAT ( OVERLOADING)

The nice thing about PAT is that these are the only differences between this configuration and the previous dynamic PAT configuraion :

• Our pool of addresses has shrunk to only one ip address.
• we included the overload keyword at the end of our ip nat inside source command.

the one IP address that's in the pool fir us to use is the ip address of the outside interface. this is perfect if you are configuring NAT overload for yourself at home or for a small office that only has one Ip address from your ISP.

DYNAMIC NAT CONFIGURAION

The command ip nat pool test 64.10.75.80 64.10.75.99 netmask 255.255.255.0 creates a pool of addresses that will be distributed to the specific hosts that require global addresses. 

STATIC NAT CONFIGURATION

The ip nat inside source command configures a static translation between the inside local IP address 10.10.10.10 to the outside global IP address 64.10.75.99

CISCO ROUTER PASSWORD BYPASS VERY EASY STEPS

CISCO ROUTER PASSWORD BYPASS:-

TURN ON YOUR CISCO ROUTER

press ctrl & pause/break button

YOU GO ROMMON MODE

rommon 1 > confreg ox2142

rommon 2 > reset

After reseting your router will open without password

router> en

router# conf t

router(config)# no enable secret

router(config)# no enable password

router(config)# line console 0

router(config)# no password

router(config)# no login local

And then

router# conf t

router(config)# config-register ox2102

router# reload

CONFIGURING DHCP IN SWITCH

CONFIGURING DHCP IN SWITCH:-

Switch(config)# ip dhcp excluded-address 192.168.10.1 192.168.10.10

Switch(config)# ip dhcp pool sales_wireless

Switch(dhcp-config)# network 192.168.10.0 255.255.255.0

Switch(dhcp-config)# default-router 192.168.10.1

Switch(dhcp-config)# dns-server 4.4.4.4

Switch(dhcp-config)# lease 4 10 13