primary and Important steps in firewall config

show version we use this command to see what packages we have

show file system shows us the prefixes

Step one: we want tot identify the inside and outside interfaces

so the outside is going to be the interface that is connoting the firewall with the router from the firewall side.

For example here gig1/1 is the outside of our network

Step two (config the outside):

enter the outside interface. lets way its gig1/1

int g1/1

nameif OUTSIDE

Notes

now we will give it an IP address

using this command

ip address 209.165.200.226 255.255.255.226

then we chose the security level

security level 0

then we will no shutdown