Belajar konfigurasi HSRP ,

Topology yang kita gunakan pada saat konfigurasi HSRP
nb:
-Shadow cnc Pada kenyataannya tidak ada.
-cnc1 merupakan router primary dengan priority 100
-cnc2 merupakan router secondary dengan priority 50

Konfigurasinya adalah sebagai berikut :

Router cnc 1 :
interface FastEthernet0/0
 ip address 192.168.10.3 255.255.255.0
 standby 10 ip 192.168.10.1
 standby 10 priority 100
 standby 10 preempt
!kalau tidak diberi perintah preempt, jika ingin kembali normal,router harus
!di reboot terlebih dahulu.
 standby 10 track FastEthernet1/0 60
!perintah ini mengantisipasi, jika f1/0 down secara otomatis priority agar berkurang
!sebesar 60 (100-60=40) hal ini menyebabkan cnc2 berubah dari state stanby -> active

!jika konfigurasi benar akan muncul line seperti berikut:
*Mar 28 12:30:52.291: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 10 state Standby -> Active

Router cnc 2 :
interface FastEthernet0/0
 ip address 192.168.10.2 255.255.255.0
 standby 10 ip 192.168.10.1
 standby 10 priority 50
 standby 10 preempt

!jika konfigurasi benar akan muncul line seperti berikut:
*Mar 28 12:31:12.843: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 10 state Speak -> Standby

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cnc1(config-if)#standby ?
  <0-255>         group number
  authentication  Authentication
  bfd             Enable HSRP BFD
  delay           HSRP initialisation delay
  follow          Name of HSRP group to follow
  ip              Enable HSRP IPv4 and set the virtual IP address
  ipv6            Enable HSRP IPv6
  mac-address     Virtual MAC address
  mac-refresh     Refresh MAC cache on switch by periodically sending packet
                  from virtual mac address
  name            Redundancy name string
  preempt         Overthrow lower priority Active routers
  priority        Priority level
  redirect        Configure sending of ICMP Redirect messages with an HSRP
                  virtual IP address as the gateway IP address
  timers          Hello and hold timers
  track           Priority tracking
  use-bia         HSRP uses interface's burned in address
  version         HSRP version

cnc1(config-if)#standby

cnc1(config-if)#standby 10 ?
  authentication  Authentication
  follow          Name of HSRP group to follow
  ip              Enable HSRP IPv4 and set the virtual IP address
  ipv6            Enable HSRP IPv6
  mac-address     Virtual MAC address
  name            Redundancy name string
  preempt         Overthrow lower priority Active routers
  priority        Priority level
  timers          Hello and hold timers
  track           Priority tracking

cnc1(config-if)#standby 10

cnc1(config-if)#standby 10 ip?
ip  ipv6

cnc1(config-if)#standby 10 ip ?
  A.B.C.D  Virtual IP address
  <cr>

cnc1(config-if)#standby 10 ip

cnc1(config-if)#standby 10 priority ?
  <0-255>  Priority value

cnc1(config-if)#standby 10 priority

cnc1(config-if)#standby 10 track f1/0 ?
  <1-255>  Decrement value
  <cr>

cnc1(config-if)#standby 10 track f1/0
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-------------------------------------------------------------

How to check:
cnc1#sh standby
FastEthernet0/0 - Group 10
  State is Active
    11 state changes, last state change 00:01:56
  Virtual IP address is 192.168.10.1
  Active virtual MAC address is 0000.0c07.ac0a
    Local virtual MAC address is 0000.0c07.ac0a (v1 default)
  Hello time 3 sec, hold time 10 sec
    Next hello sent in 2.480 secs
  Preemption enabled
  Active router is local
  Standby router is 192.168.10.2, priority 50 (expires in 10.336 sec)
  Priority 100 (default 100)
    Track interface FastEthernet1/0 state Up decrement 60
  Group name is "hsrp-Fa0/0-10" (default)
cnc1#sh standby brief
                     P indicates configured to preempt.
                     |
Interface   Grp  Pri P State   Active          Standby         Virtual IP
Fa0/0       10   100 P Active  local           192.168.10.2    192.168.10.1
cnc1#

cnc2#sh standby
FastEthernet0/0 - Group 10
  State is Standby
    31 state changes, last state change 00:04:22
  Virtual IP address is 192.168.10.1
  Active virtual MAC address is 0000.0c07.ac0a
    Local virtual MAC address is 0000.0c07.ac0a (v1 default)
  Hello time 3 sec, hold time 10 sec
    Next hello sent in 1.648 secs
  Preemption enabled
  Active router is 192.168.10.3, priority 100 (expires in 8.240 sec)
  Standby router is local
  Priority 50 (configured 50)
  Group name is "hsrp-Fa0/0-10" (default)
cnc2#sh standby brief
                     P indicates configured to preempt.
                     |
Interface   Grp  Pri P State   Active          Standby         Virtual IP
Fa0/0       10   50  P Standby 192.168.10.3    local           192.168.10.1
-------------------------------------------------------------
-------------------------------------------------------------

cnc2#debug stanby
HSRP debugging is on
cnc2#
*Mar 28 11:45:50.099: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Standby pri 50 vIP 192.168.10.1
*Mar 28 11:45:51.551: HSRP: Fa0/0 Grp 10 Hello  in  192.168.10.3 Active  pri 100 vIP 192.168.10.1
*Mar 28 11:45:52.563: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Standby pri 50 vIP 192.168.10.1
*Mar 28 11:45:55.555: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Standby pri 50 vIP 192.168.10.1
*Mar 28 11:45:57.599: HSRP: Fa0/0 Grp 10 Hello  in  192.168.10.3 Active  pri 100 vIP 192.168.10.1
*Mar 28 11:45:58.339: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Standby pri 50 vIP 192.168.10.1
*Mar 28 11:45:58.835: HSRP: Fa0/0 Grp 10 Resign in  192.168.10.3 Active  pri 100 vIP 192.168.10.1
*Mar 28 11:45:58.835: HSRP: Fa0/0 Grp 10 Standby: i/Resign rcvd (100/192.168.10.3)
*Mar 28 11:45:58.839: HSRP: Fa0/0 Grp 10 Active router is local, was 192.168.10.3
*Mar 28 11:45:58.839: HSRP: Fa0/0 Nbr 192.168.10.3 no longer active for group 10 (Standby)
*Mar 28 11:45:58.839: HSRP: Fa0/0 Nbr 192.168.10.3 Was active or standby - start passive holddown
*Mar 28 11:45:58.839: HSRP: Fa0/0 Grp 10 Standby router is unknown, was local
*Mar 28 11:45:58.843: HSRP: Fa0/0 Grp 10 Standby -> Active
*Mar 28 11:45:58.843: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 10 state Standby -> Active
*Mar 28 11:45:58.843: HSRP: Fa0/0 Interface adv out, Active, active 1 passive 0
*Mar 28 11:45:58.847: HSRP: Fa0/0 Grp 10 Redundancy "hsrp-Fa0/0-10" state Standby -> Active
*Mar 28 11:45:58.847: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Active  pri 50 vIP 192.168.10.1
*Mar 28 11:45:58.851: HSRP: Fa0/0 Added 192.168.10.1 to ARP (0000.0c07.ac0a)
*Mar 28 11:45:58.855: HSRP: Fa0/0 Grp 10 Activating MAC 0000.0c07.ac0a
*Mar 28 11:45:58.855: HSRP: Fa0/0 Grp 10 Adding 0000.0c07.ac0a to MAC address filter
*Mar 28 11:45:58.859: HSRP: Fa0/0 IP Redundancy "hsrp-Fa0/0-10" standby, local -> unknown
*Mar 28 11:45:58.859: HSRP: Fa0/0 IP Redundancy "hsrp-Fa0/0-10" update, Standby -> Active
*Mar 28 11:46:01.439: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Active  pri 50 vIP 192.168.10.1
*Mar 28 11:46:01.855: HSRP: Fa0/0 IP Redundancy "hsrp-Fa0/0-10" update, Active -> Active
*Mar 28 11:46:04.015: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Active  pri 50 vIP 192.168.10.1
*Mar 28 11:46:06.451: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Active  pri 50 vIP 192.168.10.1
*Mar 28 11:46:09.059: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Active  pri 50 vIP 192.168.10.1
*Mar 28 11:46:11.667: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Active  pri 50 vIP 192.168.10.1
*Mar 28 11:46:14.179: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Active  pri 50 vIP 192.168.10.1
cnc2#u all
All possible debugging has been turned off
cnc2#
*Mar 28 11:46:16.627: HSRP: Fa0/0 Grp 10 Hello  out 192.168.10.2 Active  pri 50 vIP 192.168.10.1
cnc2#u all
All possible debugging has been turned off
cnc2#
*Mar 28 11:46:28.427: %OSPF-5-ADJCHG: Process 1, Nbr 10.10.10.1 on FastEthernet0/0 from FULL to DOWN, Neighbor Down: Dead timer expired
cnc2#
*Mar 28 11:46:52.059: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 10 state Active -> Speak
*Mar 28 11:46:53.299: %OSPF-5-ADJCHG: Process 1, Nbr 10.10.10.1 on FastEthernet0/0 from LOADING to FULL, Loading Done
*Mar 28 11:47:02.879: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 10 state Speak -> Standby
cnc2#
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Pada saat normal
C:\>tracert 192.168.40.2
Tracing route to 192.168.40.2 over a maximum of 30 hops
1     *      111 ms    46 ms  192.168.10.3
2   177 ms   200 ms   222 ms  192.168.20.2
3   375 ms   453 ms   437 ms  192.168.40.2
Trace complete.
Pada saat interface f0/0 router cnc1 down
C:\>tracert 192.168.40.2
Tracing route to 192.168.40.2 over a maximum of 30 hops
1   124 ms   140 ms   187 ms  192.168.10.2
2   280 ms   342 ms   157 ms  192.168.30.2
3   281 ms   374 ms   251 ms  192.168.40.2
Trace complete.

Pada saat interface f0/0 router cnc1 kembali up
C:\>tracert 192.168.40.2
Tracing route to 192.168.40.2 over a maximum of 30 hops
1     *      108 ms   125 ms  192.168.10.3
2   313 ms   297 ms   250 ms  192.168.20.2
3   313 ms   406 ms   312 ms  192.168.40.2
Trace complete.

Pada saat interface f1/0 router cnc1 down
C:\>tracert 192.168.40.2
Tracing route to 192.168.40.2 over a maximum of 30 hops
1   134 ms   124 ms   125 ms  192.168.10.2
2   300 ms   342 ms   281 ms  192.168.30.2
3   560 ms   531 ms   562 ms  192.168.40.2
Trace complete.
C:\> 
 
Sumber: https://iwing.wordpress.com/black-box/belajar-konfigurasi-basic-hsrp-hot-standby-router-protocol/