HSRP設定例 のバックアップ(No.2)

• バックアップ一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• HSRP設定例 へ行く。
  • 1 (2013-07-17 (水) 16:34:11)
  • 2 (2013-07-17 (水) 17:06:47)

CISCO入門

HSRP + Tracking + IP SLAの小構成例 †

R1 †

   !
   track 90 ip sla 20
   !
   interface FastEthernet1/0/1
    switchport access vlan 100
    switchport mode access
   !
   interface FastEthernet1/0/2
    switchport access vlan 200
    switchport mode access
   !
   interface Vlan100
    ip address 10.10.10.10 255.255.255.0
    standby version 2
    standby 1 ip 10.10.10.254
    standby 1 priority 105
    standby 1 preempt
    standby 1 track 90 decrement 10
   !
   interface Vlan200
    ip address 172.16.16.10 255.255.255.0
    standby 2 ip 172.16.16.254
    standby 2 priority 105
    standby 2 preempt
    standby 2 track 90 decrement 10
   !
   ip sla 20
    icmp-echo 10.10.10.20
   ip sla schedule 20 life forever start-time now
   !

R2 †

   !
   interface FastEthernet1/0/1
    switchport access vlan 100
    switchport mode access
   !
   interface FastEthernet1/0/2
    switchport access vlan 200
    switchport mode access
   !
   interface Vlan100
    ip address 10.10.10.10 255.255.255.0
    standby 1 ip 10.10.10.254
    standby 1 priority 100 (Eef100省略可)
    standby 1 preempt
   !
   interface Vlan200
    ip address 172.16.16.10 255.255.255.0
    standby 2 ip 172.16.16.254
    standby 2 priority 100 (Eef100省略可)
    standby 2 preempt
   !

おまけ †

Version2にすると認証が可能だが、一度も認証しないとINITになる。

Switch(config-if)#standby version 2
Switch(config-if)#standby 1 authentication text cisco

R1でのshow例 †

   Switch#show standby
   Vlan100 - Group 1
     State is Active
       8 state changes, last state change 00:01:33
     Virtual IP address is 10.10.10.254
     Active virtual MAC address is 0000.0c07.ac01
       Local virtual MAC address is 0000.0c07.ac01 (v1 default)
     Hello time 3 sec, hold time 10 sec
       Next hello sent in 2.000 secs
     Preemption enabled
     Active router is local
     Standby router is unknown
     Priority 105 (configured 105)
       Track object 90 state Up decrement 12
     Group name is "hsrp-Vl100-1" (default)

～VLAN200は接続無いので省略～

VRRPの設定例 †

R1設定例 †

   !
   track 20 interface FastEthernet0 line-protocol
   !
   interface FastEthernet0
    ip address 10.10.10.201 255.255.255.0
    vrrp 1 ip 10.10.10.200
    vrrp 1 timers advertise msec 500
    vrrp 1 priority 105
    vrrp 1 authentication cisco
    vrrp 1 track 20
   !

R2設定例 †

   !
   interface FastEthernet0
    ip address 10.10.10.202 255.255.255.0
    vrrp 1 ip 10.10.10.200
    vrrp 1 timers advertise msec 500
    vrrp 1 authentication cisco
   !

※アドバタイズメントの送信間隔はデフォルトで1秒です。 ※HSRPのようにIFトラッキングを直接設定することは出来ません。

showコマンドで確認 †

   R1#show vrrp
   FastEthernet0 - Group 1
     State is Master
     Virtual IP address is 10.10.10.200
     Virtual MAC address is 0000.5e00.0101
     Advertisement interval is 0.500 sec
     Preemption enabled
     Priority is 105
       Track object 20 state Up decrement 10
     Authentication text "cisco"
     Master Router is 10.10.10.201 (local), priority is 105
     Master Advertisement interval is 0.500 sec
     Master Down interval is 2.089 sec

   R2#show vrrp
   FastEthernet0 - Group 1
     State is Backup
     Virtual IP address is 10.10.10.200
     Virtual MAC address is 0000.5e00.0101
     Advertisement interval is 0.500 sec
     Preemption enabled
     Priority is 100
     Authentication text "cisco"
     Master Router is 10.10.10.201, priority is 105
     Master Advertisement interval is 1.000 sec
     Master Down interval is 2.109 sec (expires in 1.825 sec)

   R2#show vrrp brief
   Interface          Grp Pri Time  Own Pre State   Master addr     Group addr
   Fa0                1   100 2109       Y  Backup  10.10.10.201    10.10.10.200