Lab HSRP Configuration

HSRP ( Hot Standby Router Protocol ) adalah metode standar untuk memberikan ketersediaan jaringan yang tinggi dengan menyediakan First-hop redundancy untuk IP host pada LAN IEEE 802 dikonfigurasi dengan default gateway IP address. Sebuah jaringan dengan High availability menyediakan sarana alternatif yang mana semua infrastructure paths dan key server dapat diakses setiap saat. HSRP adalah salah satu fitur perangkat lunak tersebut yang dapat dikonfigurasi untuk menyediakan Layer 3 redundansi untuk network host.

Ini memungkinkan dua router interface untuk bekerja sama untuk menyajikan penampilan satu virtual router atau default gateway untuk host di LAN. Jadi dengan kata lain ketika salah satu router yang terconfigure dalam HSRP-nya down maka Link pada jaringan tersebut tetap berjalan, dikarenakan ip gateway yang dikenal si host adalah ip-nya virtual router.

 

Yuk, masuk ke konfigurasinya :

 

Router(config)#int Giga
Router(config)#int GigabitEthernet0/1
Router(config-if)#ip add 192.168.2.2 255.255.255.0
Router(config-if)#duplex auto
Router(config-if)#speed auto
Router(config-if)#standby 2 version 2
% Invalid input detected at '^' marker.
Router(config-if)#standby 2 ip 192.168.2.1
Router(config-if)#standby 2 priority 120
Router(config-if)#standby 2 preempt
Router(config-if)#ex
Router(config)#ex
Router(config)#int Giga
Router(config)#int GigabitEthernet0/0
Router(config-if)#ip add 192.168.1.3 255.255.255.0
Router(config-if)#duplex auto
Router(config-if)#speed auto
Router(config-if)#standby version 2
% Invalid input detected at '^' marker.
Router(config-if)#standby 1 ip 192.168.1.1
Router(config-if)#ex
Router(config)#int Gig
Router(config)#int GigabitEthernet0/1
Router(config-if)#ip add 192.168.2.3 255.255.255.0
Router(config-if)#duplex auto
Router(config-if)#speed auto
Router(config-if)#standby version 2
% Invalid input detected at '^' marker.
Router(config-if)#standby 2 ip 192.168.2.1
Router(config-if)#ex
Router(config)#int Gig0/0
Router(config-if)#no shut

Router(config-if)#
%LINK-5-CHANGED: Interface GigabitEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up

Router(config-if)#ex
Router(config)#int Gig0/1
Router(config-if)#no shut

Cek terminologinya :
 

Router#show standby
GigabitEthernet0/0 - Group 1 (version 2)
State is Active
9 state changes, last state change 00:17:57
Virtual IP address is 192.168.1.1
Active virtual MAC address is 0000.0C9F.F001
Local virtual MAC address is 0000.0C9F.F001 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.212 secs
Preemption enabled
Active router is local
Standby router is 192.168.1.3, priority 120 (expires in 8 sec)
Priority 120 (configured 120)
Group name is hsrp-Gig0/0-1 (default)
GigabitEthernet0/1 - Group 2 (version 2)
State is Active
5 state changes, last state change 00:16:32
Virtual IP address is 192.168.2.1
Active virtual MAC address is 0000.0C9F.F002
Local virtual MAC address is 0000.0C9F.F002 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.723 secs
Preemption enabled
Active router is local
Standby router is 192.168.2.3
Priority 120 (configured 120)
Group name is hsrp-Gig0/1-2 (default)
Router#

Kesimpulannya, router 0 aktif berarti router tersebut yang forward packet.

Cek di router berikutnya :

Router#show standby
GigabitEthernet0/0 - Group 1 (version 2)
State is Standby
8 state changes, last state change 00:18:06
Virtual IP address is 192.168.1.1
Active virtual MAC address is 0000.0C9F.F001
Local virtual MAC address is 0000.0C9F.F001 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.76 secs
Preemption disabled
Active router is 192.168.1.2, priority 100 (expires in 8 sec)
MAC address is 0000.0C9F.F001
Standby router is local
Priority 100 (default 100)
Group name is hsrp-Gig0/0-1 (default)
GigabitEthernet0/1 - Group 2 (version 2)
State is Standby
8 state changes, last state change 00:18:18
Virtual IP address is 192.168.2.1
Active virtual MAC address is 0000.0C9F.F002
Local virtual MAC address is 0000.0C9F.F002 (v2 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.008 secs
Preemption disabled
Active router is 192.168.2.2
Standby router is local
Priority 100 (default 100)
Group name is hsrp-Gig0/1-2 (default)
Router#

Router 1 berstatus standby, mengindikasikan bahwa router ini menjadi backup router apabila terjadi down time di router 0.

 

Tes koneksinya :

PC>ping 192.168.2.100

Pinging 192.168.2.100 with 32 bytes of data:

Reply from 192.168.2.100: bytes=32 time=4ms TTL=127

Reply from 192.168.2.100: bytes=32 time=0ms TTL=127

Reply from 192.168.2.100: bytes=32 time=0ms TTL=127

Reply from 192.168.2.100: bytes=32 time=0ms TTL=127

Ping statistics for 192.168.2.100:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 4ms, Average = 1ms

Simpan konfigurasinya :

Router#wr memory

Building configuration...

[OK]

Router#