ASA - Initial Setup Examples

This post details how to do some initial configuration setups on ASAs

Basic Setup (routed mode)

hostname ASA01
!
interface management 0/0
 ip address 192.168.90.81
 nameif MGMT
 security-level 0
 management-only
!
router management 0.0.0.0 0.0.0.0 192.168.90.254
!
ssh version 2
ssh key-exchange group dh-group14-sha1
ssh 0.0.0.0 0.0.0.0 MGMT
!
aaa authentication ssh console LOCAL

Transparent mode

firewall mode transparent
!
hostname ASA02
!
interface BVI 1
 ip address 172.30.21.50 255.255.255.0
!
interface GigabitEthernet0/0
 bridge-group 1
 nameif OUTSIDE
 security-level 0
 no shut
!
interface GigabitEthernet0/1
 bridge-group 1
 nameif INSIDE
 security-level 100
 no shut
!
access-list INSIDE-IN permit ip any any
access-group INSIDE-IN in interface INSIDE

Redundant Interface

hostname ASA03
!
interface gi0/0
 no shut
!
interface gi0/3
 no shut
!
interface redundant 1
 member-interface gi0/3
 member-interface gi0/0
 nameif INSIDE
 security-level 100
 ip address 192.168.31.10 255.255.255.0
 no shut