Want to know how to configure Router On A Stick?Here is an example. This setup is created with Cisco Packet Tracer. The PC’s are configured with routers of type 2811.After configuring this setup, the PC’s can ping each other. You can download:Cisco Packet Tracer fileVisio file

A Cisco 2811 can have modules inserted. Here is a list of some of those modules: NM-1ENW-1E2WNM-1FE-FXNM-1FE-TXNW-1FE2WNM-2E2WNM-2FE2WNM-2WNM-4A/SNM-4ENM-8A/SNM-8AMNM-ESW-161HWIC-1GE-SFPHWIC-2THWIC-4ESWHWIC-8AHWIC-AP-AG-BWIC-1AMWIC-1ENETWIC-1TWIC-2AMWIC-2T I was curious how those modules had effect on the running config concerning the interfaces. So in Packet Tracer, I took a moment to make an inventory of all those modules, with the interfaces section of the running […]

A basic configuration to add users and console/ssh access. Add a username with secret and privilege: 2960a(config)#username philip secret cisco-philip 2960a(config)#username philip privilege 15 Add console access: 2960a(config)#line console 0 2960a(config-line)#password cisco-console 2960a(config-line)#login Add SSH access: 2960a(config)#ip domain-name testenv.lan 2960a(config)#crypto key generate rsa How many bits in the modulus [512]: 2048 2960a(config)#ip ssh version 2 […]

Small example created with Cisco Packet Tracer 7.2. Partial script concerning “access-list”: [Config…] ! hostname LabA ! [Config…] ! interface FastEthernet0/0 description Uplink HomeRouter ip address 10.0.0.2 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 description Sales ip address 172.16.40.1 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 description Finance ip address 172.16.50.1 255.255.255.0 ip […]

When to use a “Straight-Through Cable” and when a “Crossover Cable”, the CCNA way.

In this small example, two Cisco 2811 routers are connected, both on FastEthernet0/0, explaining the use of access-list. The partial config of router0: interface FastEthernet0/0 ip address 10.0.0.1 255.255.255.0 The partial config of router1: interface FastEthernet0/0 ip address 10.0.0.2 255.255.255.0 ! [config…] ! access-list 10 deny host 10.0.0.1 Make note that the command access-list 10 […]

Here an example during studying Chapter 11 VLANs and Inter-VLAN Routing. The lab is made with Cisco Packet Tracer and contains: 1 Cisco 2811 router 3 Cisco 3560 switches 4 laptops 2 VLANs After setting up this config, all laptops can ping each other, in both VLANs. Below some parts of the configs of the […]

Below a configuration of a Cisco 3560 configured as a layer 3 switch. After setting this up, the 4 laptops can ping each other. Below the partial config: [config…] ! ip routing ! [config…] ! vlan 5 name vlan-5 ! vlan 10 name vlan-10 ! vlan 20 name vlan-20 ! vlan 30 name vlan-30 ! […]

Below a configuration with the following devices: Firewall Cisco 2811 router Cisco 2960 switch 3 laptops After setting up this configuration, all laptops can ping each other. Partial config 2811b: ! interface FastEthernet0/0 description Connection to firewall ip address 172.16.0.3 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 ip address 192.168.10.1 255.255.255.240 duplex auto speed […]

After adding some VLANs on a Cisco 2811, see https://www.everythingconnected.net/add-vlan-on-cisco-2811/, let’s take a look at the routing table.Perform showing the routing table with: 2811a#show ip route The output will be: Codes: C – connected, S – static, R – RIP, M – mobile, B – BGP D – EIGRP, EX – EIGRP external, O – […]