Cisco 2620XM

[tollivtl]

I am pretty new to the wonderful world of Cisco IOS, and I could use a little help.

I recently bought a Cisco router (

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=140341028138)

and I would like it to be my home gateway. Cable Modem on one side, home network on other, including Server 2008.

My main question is this: I have three ports to my router, the console, the aux, and 1 fast ethernet port. How can the router route anything with only 1 eth port? Do I use the aux for the other "side"? What do I need to do to be able to get this to work? I do have a Cisco 2650 switch if that helps (for VLAN possibly?), though I'm not sure how to configure that either.

Any help would be greatly appreciated.

 

[burtsbees]

Sub-interfaces (router-on-a-stick).

/

tim@tim-laptop ~ $ sudo apt-get install windows
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package windows...Thank Goodness!

 

[tollivtl]

Can anyone give more info on how to accomplish this? Thanks

 

[vipergg]

You are going to need a managable switch that can do trunking in order to pull it off with only 1 ethernet interface or buy another ether net card for the router..

http://www.cisco.com/en/US/tech/tk389/tk815/technologies_configuration_example09186a00800949fd.shtml

 

[StaplesMan]

You should be able to get a 10Mbps Ethernet wic card to slide into it. It seems slow but mostly likely your internet connection is not above 10Mbps. This would be the easiest, and you would not need to get a vlan, trunking switch to do this.

Or if your really wanting to learn about the ios get yourself a cheap cisco switch.

Did a quick ebay seach and found:

http://cgi.ebay.com/Cisco-WS-C3524-...emQQptZLH_DefaultDomain_0?hash=item35a5d3bae2

good luck!

CCNA, A+, HP Certified Professional

 

[VinceWhirlwind]

Listen to Burtsbees.

I'll expand on his suggestion:

Assuming the cable modem's "inside" LAN interface is 192.168.0.1.

Configure your router as follows:

int f0/0
no ip addr
int f0/0.1
encap dot1q 1 native
ip address 192.168.1.1 255.255.255.0
int f0/0.2
encap dot1q 2
ip addr 192.168.0.1 255.255.255.0
ip route 0.0.0.0 0.0.0.0 192.168.0.1
service dhcp
ip dhcp pool 192.168.1.0/24
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server ?

And your switch:
int f0/1
description UPLINK TO ROUTER
switchport trunk encapsulation dot1q
switchport mode trunk
int f0/2
description UPLINK TO CABLE MODEM
switchport mode access
switchport access vlan 2
int range f0/3-24
switchport mode access
switchport access vlan 1
spanning-tree portfast

Then, you will need to add to your cable modem:
- NAT configuration for 192.168.1.0 subnet same as 192.168.0.0 subnet is already in there.
- ip route 192.168.1.0 255.255.255.0 192.168.0.2