? <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

R1(config-if)#standby vR1(config-if)#v vrrR1(config-if)#vrrp % Incomplete command.

R1(config-if)#vrrp ? <1-255> Group number

R1(config-if)#vrrp glR1(config-if)#glbp ? <0-1023> Group number

R1(config-if)#glbp hsR1(config-if)#hsrp stR1(config-if)#standby 1% Incomplete command.

R1(config-if)#standby 1 ? <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

R1(config-if)#standby 1 ?

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

R1(config-if)#standby 1 ip ? A.B.C.D Virtual IP address <cr>

R1(config-if)#standby 1 ip 10.20.30.254 ? secondary Make this IP address a secondary virtual IP address <cr>

R1(config-if)#standby 1 ip 10.20.30.254 R1(config-if)#standby 1 ip 10.20.30.254 nstandby 1 ip 10.20.30.254 ostandby 1 ip 10.20.30.254 standby 1 ip 10.20.30.254 R1(config-if)#stR1(config-if)#standby 6R1(config-if)#standby 69 no standby 1 ip 10.20.30.254 standby 1 ip 10.20.30.254 ip 10.20.30.254 ip 10.20.30.254 6ip 10.20.30.254 9ip 10.20.30.254 ip 10.20.30.254 R1(config-if)#*May 4 00:49:11.067: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Speak -> StandbyR1(config-if)#*May 4 00:50:43.095: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Standby -> ListenR1(config-if)#endR1#sho*May 4 00:50:48.187: %SYS-5-CONFIG_I: Configured from console by consoleR1#show stR1#show staR1#show stanR1#show standby briR1#show standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 100 Listen 10.20.30.3 10.20.30.4 10.20.30.254R1#ping 10.20.20.2

Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 10.20.20.2, timeout is 2 seconds:.....Success rate is 0 percent (0/5)R1#ping 10.20.20.2.2 .2 3.20.2

Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 10.20.30.2, timeout is 2 seconds:.!!!!Success rate is 80 percent (4/5), round-trip min/avg/max = 1/1/4 msR1#ping 10.20.30.220.2show standby brief P indicates configured to preempt. |

Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 100 Listen 10.20.30.4 unknown 10.20.30.254R1#show standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 100 Listen 10.20.30.4 10.20.30.2 10.20.30.254R1#show standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 100 Listen 10.20.30.4 10.20.30.2 10.20.30.254R1#*May 4 00:58:04.815: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Speak -> StandbyR1#show standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 100 Standby 10.20.30.2 local 10.20.30.254R1#show standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 100 Standby 10.20.30.2 local 10.20.30.254R1#show standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 100 Standby 10.20.30.2 local 10.20.30.254R1#*May 4 01:00:25.963: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Standby -> ListenR1#show standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 100 Listen 10.20.30.3 10.20.30.1 10.20.30.254R1#

R1 con0 is now available

Press RETURN to get started.

R1>R1>R1>R1>enR1#conf tEnter configuration commands, one per line. End with CNTL/Z.R1(config)#interR1(config)#interface fasR1(config)#interface fastEthernet 070 ^% Invalid input detected at '^' marker.

R1(config)#interface fastEthernet 070 /0R1(config-if)#staR1(config-if)#standby 69 prR1(config-if)#standby 69 priR1(config-if)#standby 69 priority ? <0-255> Priority value

R1(config-if)#standby 69 priority 220R1(config-if)#*May 4 01:14:17.959: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Speak -> StandbyR1(config-if)#endR1#sh s*May 4 01:14:42.843: %SYS-5-CONFIG_I: Configured from console by consoleR1#sh staR1#sh stanR1#sh standby brR1#sh standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Standby 10.20.30.3 local 10.20.30.254

R1#telnet 10.20.20. 30.100Trying 10.20.30.100 ... Open

User Access Verification

Password: SW1>enPassword: SW1#en conf tEnter configuration commands, one per line. End with CNTL/Z.SW1(config)#interSW1(config)#interface rSW1(config)#interface range fasSW1(config)#interface range fastEthernet 0/3, fasSW1(config)#interface range fastEthernet 0/3, fastEthernet 0/20 - 22SW1(config-if-range)#spaSW1(config-if-range)#spanning-tree swSW1(config-if-range)#spanning-tree sw poSW1(config-if-range)#spanning-tree portfSW1(config-if-range)#spanning-tree portfast %Warning: portfast should only be enabled on ports connected to a single host. Connecting hubs, concentrators, switches, bridges, etc... to this interface when portfast is enabled, can cause temporary bridging loops. Use with CAUTION

%Portfast will be configured in 4 interfaces due to the range command but will only have effect when the interfaces are in a non-trunking mode.SW1(config-if-range)#endSW1#wrBuilding configuration...[OK]SW1#exit

[Connection to 10.20.30.100 closed by foreign host]R1#enR1#conf tEnter configuration commands, one per line. End with CNTL/Z.R1(config)#int fa 0/0R1(config-if)#shut*May 4 01:17:04.643: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Standby -> ActiveR1(config-if)#shutR1(config-if)#*May 4 01:17:19.155: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Active -> InitR1(config-if)#*May 4 01:17:21.151: %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to administratively down*May 4 01:17:22.151: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to downR1(config-if)#no shutR1(config-if)#*May 4 01:18:33.927: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up*May 4 01:18:34.927: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to upR1(config-if)#endR1#sh *May 4 01:18:49.963: %SYS-5-CONFIG_I: Configured from console by console

R1#sh stanR1#sh standby briR1#sh standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Standby unknown local 10.20.30.254R1#*May 4 01:18:56.095: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Standby -> ActiveR1#sh standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Active local unknown 10.20.30.254R1#conf tEnter configuration commands, one per line. End with CNTL/Z.R1(config)#int fa 0/0R1(config-if)#shutR1(config-if)#no shut*May 4 01:19:41.547: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Active -> InitR1(config-if)#no shut*May 4 01:19:43.543: %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to administratively down*May 4 01:19:44.543: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to downR1(config-if)#no shutR1(config-if)#*May 4 01:20:51.155: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to upR1(config-if)#no shutshut int fa 0/0end *May 4 01:20:54.211: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to upR1(config-if)#endno shutend int fa 0/0shut endR1#s*May 4 01:20:59.423: %SYS-5-CONFIG_I: Configured from console by consoleR1#sho conf tsh standby brief conf t en telnet 10.20.30.100sh standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Speak unknown unknown 10.20.30.254R1#sh standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Speak unknown unknown 10.20.30.254R1#sh standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Speak unknown unknown 10.20.30.254R1#sh standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Speak unknown unknown 10.20.30.254R1#*May 4 01:21:17.163: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Standby

-> ActiveR1#sh standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Active local unknown 10.20.30.254R1#sh standby brief FastEthernet0/0 - Group 69 State is Active 12 state changes, last state change 00:00:30 Virtual IP address is 10.20.30.254 Active virtual MAC address is 0000.0c07.ac45 Local virtual MAC address is 0000.0c07.ac45 (v1 default) Hello time 3 sec, hold time 10 sec Next hello sent in 1.600 secs Preemption disabled Active router is local Standby router is 10.20.30.2, priority 200 (expires in 10.352 sec) Priority 220 (configured 220) Group name is "hsrp-Fa0/0-69" (default)R1#R1#R1#R1#R1#R1#enR1#conf tEnter configuration commands, one per line. End with CNTL/Z.R1(config)#interR1(config)#interface fasR1(config)#interface fastEthernet 0/0R1(config-if)#staR1(config-if)#standby 69 ? 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

R1(config-if)#standby 69 timR1(config-if)#standby 69 timers ? <1-254> Hello interval in seconds msec Specify hello interval in milliseconds

R1(config-if)#standby 69 timers 1 ? <2-255> Hold time in seconds

R1(config-if)#standby 69 timers 1 % Incomplete command.

R1(config-if)#standby 69 timers 1 000 mseR1(config-if)#standby 69 timers 1000 mse ?% Unrecognized commandR1(config-if)#standby 69 timers 1000 1 ? <2-255> Hold time in seconds

R1(config-if)#standby 69 timers 1 3 ? <cr>

R1(config-if)#standby 69 timers 1 3 R1(config-if)#endR1#sh *May 4 01:33:37.147: %SYS-5-CONFIG_I: Configured from console by consoleR1#sh stanR1#sh standby FastEthernet0/0 - Group 69 State is Active 12 state changes, last state change 00:12:23 Virtual IP address is 10.20.30.254 Active virtual MAC address is 0000.0c07.ac45 Local virtual MAC address is 0000.0c07.ac45 (v1 default) Hello time 1 sec, hold time 3 sec Next hello sent in 0.096 secs Preemption disabled Active router is local Standby router is 10.20.30.2, priority 200 (expires in 2.960 sec) Priority 220 (configured 220) Group name is "hsrp-Fa0/0-69" (default)R1#sh standby conf t en conf tEnter configuration commands, one per line. End with CNTL/Z.R1(config)#endstandby 69 timers 1 3 interface fastEthernet 0/0R1(config-if)#interface fastEthernet 0/0end standby 69 timers 1 3 ? <1-254> Hello interval in seconds msec Specify hello interval in milliseconds

R1(config-if)#standby 69 timers 50 msR1(config-if)#standby 69 timers 50 ms msR1(config-if)#standby 69 timers msec 50% Incomplete command.

R1(config-if)#standby 69 timers msec 50 ? <1-255> Hold time in seconds msec Specify hold time in milliseconds

R1(config-if)#standby 69 timers msec 50 1 ho MR1(config-if)#standby 69 timers 1 M mR1(config-if)#standby 69 timers 1 m ? <2-255> Hold time in seconds

R1(config-if)#standby 69 timers 1 msR1(config-if)#standby 69 timers msec 100 ? <1-255> Hold time in seconds msec Specify hold time in milliseconds

R1(config-if)#standby 69 timers msec 100 2 mR1(config-if)#standby 69 timers msec 100 msec 200R1(config-if)#endR1#*May 4 01:35:55.063: %SYS-5-CONFIG_I: Configured from console by consoleR1#conf tsh standby conf t Enter configuration commands, one per line. End with CNTL/Z.R1(config)#endstandby 69 timers msec 100 msec 20050 interface fastEthernet 0/0R1(config-if)#interface fastEthernet 0/0end standby 69 tim

ers msec 100 msec 200 1 2R1(config-if)#endR1#*May 4 01:37:26.063: %SYS-5-CONFIG_I: Configured from console by consoleR1#conf tEnter configuration commands, one per line. End with CNTL/Z.R1(config)#fasR1(config)#fas endstandby 69 timers 1 2interface fastEthernet 0/0R1(config-if)#interface fastEthernet 0/0end standby 69 timers 1 2 trR1(config-if)#standby 69 track fa =7 0/1R1(config-if)#shutR1(config-if)#*May 4 01:37:58.015: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Active -> InitR1(config-if)#*May 4 01:38:00.011: %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to administratively down*May 4 01:38:01.011: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to downR1(config-if)#do show standyshow standy ^% Invalid input detected at '^' marker.

R1(config-if)#do show standy endR1#show st*May 4 01:38:22.895: %SYS-5-CONFIG_I: Configured from console by consoleR1#show stanR1#show standby FastEthernet0/0 - Group 69 State is Init (interface down) 13 state changes, last state change 00:00:27 Virtual IP address is 10.20.30.254 Active virtual MAC address is unknown Local virtual MAC address is 0000.0c07.ac45 (v1 default) Hello time 1 sec, hold time 2 sec Preemption disabled Active router is unknown Standby router is unknown Priority 220 (configured 220) Track interface FastEthernet0/1 state Up decrement 10 Group name is "hsrp-Fa0/0-69" (default)R1#show standby conf t sh standby conf t sh standby brie P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Init unknown unknown 10.20.30.254R1#sh ip int briInterface IP-Address OK? Method Status ProtocolFastEthernet0/0 10.20.30.1 YES manual administratively down down FastEthernet0/1 172.16.1.1 YES manual up up Serial0/0/0 unassigned YES unset administratively down down Serial0/0/1 unassigned YES unset administratively down down R1#sh ip int bristandby brie

P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Init unknown unknown 10.20.30.254R1#conf tEnter configuration commands, one per line. End with CNTL/Z.R1(config)#int fa 0/0R1(config-if)#no shutR1(config-if)#int fa *May 4 01:40:48.363: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up*May 4 01:40:49.363: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to upR1(config-if)#int fa 0/1R1(config-if)#shutR1(config-if)#*May 4 01:40:53.087: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Speak -> Standby*May 4 01:40:53.967: %TRACKING-5-STATE: 1 interface Fa0/1 line-protocol Up->DownR1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#*May 4 01:40:55.967: %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to administratively down*May 4 01:40:56.967: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to downR1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#endR1#sh *May 4 01:41:04.127: %SYS-5-CONFIG_I: Configured from console by consoleR1#sh stanR1#sh standby bri P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 210 Standby 10.20.30.2 local 10.20.30.254R1#conf tEnter configuration commands, one per line. End with CNTL/Z.R1(config)#interR1(config)#interface fasR1(config)#interface fastEthernet 0/0R1(config-if)#satR1(config-if)#sat tR1(config-if)#standby 69 tR1(config-if)#standby 69 trR1(config-if)#standby 69 track ? <1-500> Tracked object number Async Async interface Auto-Template Auto-Template interface BVI Bridge-Group Virtual Interface CDMA-Ix CDMA Ix interface CTunnel CTunnel interface Dialer Dialer interface

FastEthernet FastEthernet IEEE 802.3 Lex Lex interface LongReachEthernet Long-Reach Ethernet interface Loopback Loopback interface MFR Multilink Frame Relay bundle interface Multilink Multilink-group interface Port-channel Ethernet Channel of interfaces SSLVPN-VIF SSLVPN Virtual Interface Serial Serial Tunnel Tunnel interface Vif PGM Multicast Host interface Virtual-Dot11Radio Virtual dot11 interface Virtual-PPP Virtual PPP interface Virtual-TokenRing Virtual TokenRing vmi Virtual Multipoint Interface --More-- R1(config-if)#standby 69 track faR1(config-if)#standby 69 track fastEthernet 0/1 ? <1-255> Decrement value <cr>

R1(config-if)#standby 69 track fastEthernet 0/1 30R1(config-if)#endR1#show stanR1#show standby *May 4 01:42:54.719: %SYS-5-CONFIG_I: Configured from console by consoleR1#show standby brR1#show standby brief P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 190 Standby 10.20.30.2 local 10.20.30.254R1#show standby brief conf tEnter configuration commands, one per line. End with CNTL/Z.R1(config)#inte fa = 0/1R1(config-if)#no shutR1(config-if)#*May 4 01:43:26.727: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to upR1(config-if)#*May 4 01:43:26.727: %TRACKING-5-STATE: 1 interface Fa0/1 line-protocol Down->Up*May 4 01:43:27.727: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to upR1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#R1(config-if)#no endR1#conf tshow standby brief *May 4 01:45:41.667: %SYS-5-CONFIG_I: Configured from console by consoleR1#show standby brief

P indicates configured to preempt. |Interface Grp Pri P State Active Standby Virtual IPFa0/0 69 220 Standby 10.20.30.2 local 10.20.30.254R1#show standby brief FastEthernet0/0 - Group 69 State is Standby 14 state changes, last state change 00:05:00 Virtual IP address is 10.20.30.254 Active virtual MAC address is 0000.0c07.ac45 Local virtual MAC address is 0000.0c07.ac45 (v1 default) Hello time 1 sec, hold time 3 sec (cfgd 2 sec) Next hello sent in 0.064 secs Preemption disabled Active router is 10.20.30.2, priority 200 (expires in 2.720 sec) Standby router is local Priority 220 (configured 220) Track interface FastEthernet0/1 state Up decrement 30 Group name is "hsrp-Fa0/0-69" (default)R1#

R1 con0 is now available

Press RETURN to get started.

R1>R1>R1>R1>R1>R1>enR1#*May 4 01:57:38.543: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to down*May 4 01:57:38.543: %HSRP-5-STATECHANGE: FastEthernet0/0 Grp 69 state Standby -> InitR1#R1#R1#R1#R1#erR1#erase n stR1#erase startup-config Erasing the nvram filesystem will remove all configuration files! Continue? [confirm][OK]Erase of nvram: completeR1#*May 4 01:58:41.295: %SYS-7-NV_BLOCK_INIT: Initialized the geometry of nvramR1#*May 4 01:58:47.479: %TRACKING-5-STATE: 1 interface Fa0/1 line-protocol Up->Down*May 4 01:58:47.607: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to downR1#