Cisco ASA 5505 Failover

ASA 5505 with Security Plus license support LAN-Based failover (Active/Standby)

you need

- two  ASA 5505 with Security Plus license

- one crossover cable

 

In our configuration we use

- ethernet 0/5 for failover link

- ethernet 0/1 for internal lan

- ethernet 0/3 for outside internet

 

configure primary ASA

 

ciscoasa# conf t

ciscoasa(config)# hostname ASA5505-1

ASA5505-1(config)# interface vlan 221

ASA5505-1(config-if)# description LAN Failover

ASA5505-1(config-if)# no shutdown 

 

ASA5505-1(config)# failover 

ASA5505-1(config)# failover lan unit primary 

ASA5505-1(config)# failover lan interface failover Vlan221

ASA5505-1(config)# failover interface ip failover 10.221.10.1 255.255.255.0 standby 10.221.10.2

 

SA5505-1(config)# int Vlan 80

ASA5505-1(config-if)# ip address 10.80.10.1 255.255.255.0 standby 10.80.10.2

ASA5505-1(config-if)# nameif TDMZ

ASA5505-1(config-if)# no shutdown 

 

ASA5505-1(config)# int vlan 99

ASA5505-1(config-if)# ip address 10.10.20.253 255.255.255.0 standby 10.10.20.254

ASA5505-1(config-if)# nameif Outside

ASA5505-1(config-if)# security-level 100

ASA5505-1(config-if)# no shutdown 

 

ASA5505-1(config)# interface ethernet 0/3

ASA5505-1(config-if)# switchport access vlan 99

ASA5505-1(config-if)# description Outside

ASA5505-1(config-if)# no shutdown 

 

ASA5505-1(config-if)# interface ethernet 0/1   

ASA5505-1(config-if)# description TDMZ      

ASA5505-1(config-if)# switchport access vlan 80

ASA5505-1(config-if)# no shutdown 

 

ASA5505-1(config-if)# interface ethernet 0/5   

ASA5505-1(config-if)# description Failover     

ASA5505-1(config-if)# switchport access vlan 221

ASA5505-1(config-if)# no shutdown 

ASA5505-1# write memory

 

 

configure secoundary ASA

 

ciscoasa(config)# hostname ASA5505-2

ASA5505-2(config)# int vlan 221

ASA5505-2(config-if)# description LAN Failover

ASA5505-2(config-if)# no shutdown 

 

ASA5505-2(config-if)# failover 

ASA5505-2(config)# failover lan unit secondary 

ASA5505-2(config)# failover lan interface failover Vlan221

ASA5505-2(config)# failover interface ip failover 10.221.10.1 255.255.255.0 standby 10.221.10.2

 

ASA5505-2(config)# interface ethernet 0/5

ASA5505-2(config-if)# description Failover

ASA5505-2(config-if)# switchport access vlan 221

ASA5505-2(config-if)# no shutdown 

ASA5505-2(config-if)# write memory

 

 

after failover up secondary ASA get config from primary and rename hostname to ASA5505-1

check failover 

 

ASA5505-1# show failover

Failover On

Failover unit Primary

Failover LAN Interface: failover Vlan221 (up)

Unit Poll frequency 1 seconds, holdtime 15 seconds

Interface Poll frequency 5 seconds, holdtime 25 seconds

Interface Policy 1

Monitored Interfaces 3 of 23 maximum

Version: Ours 8.4(3), Mate 8.4(3)

Last Failover at: 18:52:25 UTC Jan 24 2012

        This host: Primary - Active

                Active time: 1022 (sec)

                slot 0: ASA5505 hw/sw rev (1.0/8.4(3)) status (Up Sys)

                  Interface TDMZ (10.80.10.1): Normal (Monitored)

                  Interface Outside (10.10.20.253): Normal (Monitored)

                slot 1: empty

        Other host: Secondary - Standby Ready

                Active time: 0 (sec)

                slot 0: ASA5505 hw/sw rev (1.0/8.4(3)) status (Up Sys)

                  Interface TDMZ (10.80.10.2): Normal (Monitored)

                  Interface Outside (10.10.20.254): Normal (Monitored)

                slot 1: empty

Port security on a trunk port

interface FastEthernet0/1

 switchport trunk native vlan 20

 switchport mode trunk

 switchport port-security maximum 2

 switchport port-security

 switchport port-security violation restrict

 switchport port-security mac-address sticky

 switchport port-security maximum 1 vlan 20,30

VRF-Lite guest VLAN for Wireless

ip vrf GUEST_WIFI

 description Guest vlan

interface Vlan66

 description Guest WiFi

 ip vrf forwarding GUEST_WIFI

 ip address 10.10.10.250 255.255.255.0

 ip nat inside

 ip virtual-reassembly

ip access-list extended nonat0_GUEST_WIFI

 deny   ip 10.10.10.0 0.0.0.255 10.10.10.0 0.0.0.255

 permit ip 10.10.10.0 0.0.0.255 any

ip nat inside source list nonat0_GUEST_WIFI interface FastEthernet1 vrf GUEST_WIFI overload

ip route vrf GUEST_WIFI 0.0.0.0 0.0.0.0 FastEthernet1 192.168.0.1 global

ip dhcp pool GUEST_WIFI

   vrf GUEST_WIFI

   network 10.10.10.0 255.255.255.0

   default-router 10.10.10.250 

   dns-server 8.8.8.8  

   domain-name guest

   lease 2

OSPF redistribute static routers

access-list 10 permit 10.10.10.10

access-list 10 permit 10.10.20.0 0.0.0.255

route-map STATIC-OSPF permit 10

 match ip address 10

router ospf 100

 redistribute static metric 100 subnets route-map STATIC-OSPF

delay for wireless client for deploy GPO MSI software

Add this key for boot delay 60 sec for wireless client for deploy GPO and install MSI software.

Usualy 60 sec is enough but you can increase it if need. I use GPO for set this key. 

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]

"GpNetworkStartTimeoutPolicyValue"=dword:0000003c

Cisco IOS archive

Cisco has simple method for backup config

mkdir flash:/archive

 

conf t

archive

 log config

  logging enable

  hidekeys

 path flash:archive/config

 write-memory

 

 

you can use other options like path tftp,scp... etc

also notify syslog contenttype plaintext if you want write to log

for check archive:

 

 

show archive log config all

show archive config differences flash:archive/config-1 system:running-config

 

Software upgrade Cisco Wireless LAN Controller

1. check your controller software version.

(Cisco Controller) >show sysinfo

Manufacturer's Name.............................. Cisco Systems Inc.

Product Name..................................... Cisco Controller

Product Version.................................. 6.0.199.4

2. check  release notes for new software version and check upgrade patch table. 

3. download new image from cisco site and copy it to tftp server.

4. login to controller

(Cisco Controller) >transfer download mode tftp

(Cisco Controller) >transfer download serverip 172.16.15.70

(Cisco Controller) >transfer download path .

(Cisco Controller) >transfer download filename AIR-WLC2100-K9-7-0-116-0.aes

(Cisco Controller) >transfer download start

Mode............................................. TFTP

Data Type........................................ Code

TFTP Server IP................................... 172.22.22.10

TFTP Packet Timeout.............................. 6

TFTP Max Retries................................. 10

TFTP Path........................................ ./

TFTP Filename.................................... AIR-WLC2100-K9-7-0-116-0.aes

This may take some time.

Are you sure you want to start? (y/N) y

TFTP Code transfer starting.

TFTP receive complete... extracting components.

/mnt/application

Writing new RTOS to flash disk.

Writing new Code to flash disk.

Executing install_code script.

Writing new APIB to flash disk.

Executing install_apib script.

TFTP File transfer is successful.

  Reboot the controller for update to complete.

  Optionally, pre-download the image to APs before rebooting to reduce network downtime.

(Cisco Controller) >reset system

The system has unsaved changes.

Would you like to save them now? (y/N) y

Configuration Saved!

System will now restart!