Hello Everyone
Just a brief / Experience of of Real ENCOR LAB.
This was really a “real time experience” and i enjoyed a lot throughout configuring the appliances with Static route | Ether Channel | HSRP and NAT. Above screenshot has all the interesting event which demonstrates the failover with network blip and when connection restores after successful failover.
- Both the Edge routers (7206VXR x 2) has connectivity to Internet.
- Multilayer switch has Vlan 10 and 20 configured with HSRP (excluding .3 from DHCP pool as HSRP IP for each Vlan).
- Multilayer switch interfaces has been configured with Ether channel.
- NAT to allow internal Subnets to reach internet.
Feel free to add your comment incase any tweak required.
Config Below
EDGE Router
Airtel#sh ip int brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.29.55 YES DHCP up up
FastEthernet1/0 192.168.50.1 YES NVRAM up up
Airtel#sh run | section ip nat
ip nat outside
ip nat inside
ip nat inside source list 1 interface FastEthernet0/0 overload
Airtel#sh run interface fastEthernet 0/0
Building configuration…
Current configuration : 79 bytes
!
interface FastEthernet0/0
ip address dhcp
ip nat outside
duplex full
end
Airtel#sh run interface fastEthernet 1/0
Building configuration…
Current configuration : 100 bytes
!
interface FastEthernet1/0
ip address 192.168.50.1 255.255.255.0
ip nat inside
duplex full
end
Multi-layer switch
Sw4#sh standby
Vlan10 - Group 10
State is Active
4 state changes, last state change 00:50:19
Virtual IP address is 192.168.10.3
Active virtual MAC address is 0000.0c07.ac0a (MAC In Use)
Local virtual MAC address is 0000.0c07.ac0a (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.608 secs
Preemption enabled
Active router is local
Standby router is 192.168.10.2, priority 80 (expires in 10.144 sec)
Priority 100 (default 100)
Group name is “hsrp-Vl10-10” (default)
Vlan20 - Group 20
State is Active
2 state changes, last state change 00:58:03
Virtual IP address is 192.168.20.3
Active virtual MAC address is 0000.0c07.ac14 (MAC In Use)
Local virtual MAC address is 0000.0c07.ac14 (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.712 secs
Preemption enabled
Active router is local
Standby router is 192.168.20.2, priority 80 (expires in 9.504 sec)
Priority 100 (default 100)
Group name is “hsrp-Vl20-20” (default)
Sw4#sh run | section dhcp
ip dhcp excluded-address 192.168.20.3
ip dhcp excluded-address 192.168.10.3
ip dhcp pool TEN
network 192.168.10.0 255.255.255.0
dns-server 8.8.8.8
default-router 192.168.10.3
ip dhcp pool TWENTY
network 192.168.20.0 255.255.255.0
dns-server 8.8.8.8
default-router 192.168.20.3
Port Channel config
!
interface Ethernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable
!
interface Ethernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode desirable
Vlans with HSRP
interface Vlan10
ip address 192.168.10.1 255.255.255.0
standby 10 ip 192.168.10.3
standby 10 preempt
!
interface Vlan20
ip address 192.168.20.1 255.255.255.0
standby 1 preempt
standby 20 ip 192.168.20.3
standby 20 preempt