Daz's bits and bobs » router

Cisco – adding a static route to router

Daz — Tue, 16 Jun 2009 19:20:31 +0000

To show what routes your cisco router currently has loaded type the following command (from the enable prompt) ;

show ip route

To add any new static routes you need to use the following command (from the config terminal prompt) ;

ip route 10.10.20.0 255.255.255.0 192.168.100.1

the syntax as above is ip route network netmask gateway

opensolaris – default route type the following to check your default routes… netstat -rn...

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Router on a stick – Adding VLANs to a cisco router

Daz — Mon, 23 Mar 2009 19:04:16 +0000

Telnet to your cisco router, enable then go into config t. Passwords may be required depending on how it has been configured…

config t

Ensure that ip routing has been enabled…

ip routing

To create the VLAN adapter you’ll need to run the following commands to create a “router on a stick”… Note: the .2 after the interface name creates a virtual adapter on the interface.

interface FastEthernet1/1.2
description “VM Host Network”
encapsulation dot1Q 2
ip address 172.25.2.1 255.255.255.0

The following is another example of a VLAN (110) on a router. This one has the ip helper-address (DHCP server) specified for this range.

interface FastEthernet1/1.110
description “Ak IDN”
encapsulation dot1Q 110
ip address 172.25.20.1 255.255.255.0
ip helper-address 172.25.20.15

That is the router side of things setup. Remember to save your changes via…

copy run start

Now you’ll need to add the VLAN to your switches. If you have VTP in your environment its as simple as adding the extra vlan onto your “server” vtp switch. Telnet (or null cable) to your “server” switch and go into “enable” mode, then go into the vlan database and add the required vlans as per above…

vlan database

vlan 2 name “VM Host Network”

vlan 110 name “Ak IDN”

VTP will propagate the vlans out to your client switches. Done.

ESX – network utilization One of the best articles i have found on this...

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Virtual Appliance – Virtual Router

Daz — Mon, 02 Feb 2009 02:46:25 +0000

This is quite a handy app for creating small virtual routers. See the website for more detail… The commandline is similar to cisco – so its good for practice if you are going for your CCNA.

http://www.vyatta.com/products/virtualized.php

Oh – its open source and free!

I’m a bit lazy in most cases and just add a few virtual nics into my VM’s and do the routing though them. But some people may find this handy for a single point to manage networking.

vMA – Using HP Power Protector agent to shutdown virtual hosts Goal was to create a vMA which would send a...

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