questions to bring my lab to the internet

I'm trying to bring my lab to the internet. I have cable internet connection. Hope the chart can be like this:

I'm gonna use straight-through cable to connect 2520 to the wireless router because everytime I connect 2 pc to the wiereless router, it assigns ip from network 192.168.0.X. So, I assume the wireless router can be divided into the following function block.

Based on my assumption, I have these questions,
1. what will happen if i plug a straight-through cable from 2520 to the wireless router? I get assigned an ip? I doubt this cuz i don't think 2520 can send a dhcp request. If not, do I assign e0 on 2520 an ip in 192.168.0.X? seems no either.
2. you guys agree with me about using a straight-through cable?

I tried the connection, I saw e0 on 2520 went from "down" to "up" but I didn't an ip assigned in the wireless router. What do you do for your whole home lab to connect?

I have 3 2520 and 1 2620, got any better suggesttion?

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Comments

the_return_of_the_Ring

oh my god. I really can't believe this. after a while, I saw ip assigned on e0 of 2520. god, it just needs some time!

then the router do send dhcp request, or the wireless just assign one to whatever connect to it?

TheShadow

Depends on the version of IOS

for 2520 see...

http://www.cisco.com/en/US/products/sw/iosswrel/ps1834/prod_release_note09186a00800881ed.html#xtocid677011

pizzafart

I've noticed that the linksys routers always assign from .100 and up. I think if you assigned that interface something like 192.168.0.50, that you'd be OK. Perhaps you can check the documentation included with your wireless router. You might even be able to turn DHCP off.

If your addressing is sound and if all the pinouts are proper, it seems that this should work OK. As far as getting a remote lab going, you might want to consider a dynamic DNS service and some kind of VPN setup.

Anyway, I've never actually done this before. So, if someone has better advice feel free to jump in. lol

Trailerisf

Why don't you assign the Router a static IP Address?

Why don't you turn off Dhcp on the wireless and see if it makes any difference?

You could always just by a cheap hub and connect the Cisco and the wireless to the Cable Modem. Create different segments. (What I would do)

the_return_of_the_Ring

Trailerisf wrote:

You could always just by a cheap hub and connect the Cisco and the wireless to the Cable Modem. Create different segments. (What I would do)

u'r probably right. I just didn't figure out in my mind. You see, the ISP will give me only one ip(192.168.0.x). I don't know this ip is on the ethernet port of the wireless, or on the exit of cable modem. what's the address relationship between them? If i connect a hub to the cable modem and connect more than 1 pc to the hub, will i get both pc to the internet? where will the dhcp server be?

Spudage

madonion wrote:

u'r probably right. I just didn't figure out in my mind. You see, the ISP will give me only one ip(192.168.0.x). I don't know this ip is on the ethernet port of the wireless, or on the exit of cable modem. what's the address relationship between them? If i connect a hub to the cable modem and connect more than 1 pc to the hub, will i get both pc to the internet? where will the dhcp server be?

Your ISP would give you a public address.

Your inside cable modem port will have a public address. Your wireless router will have a different private address that is on the same subnet as the inside cable modem port.

Trailerisf

madonion wrote:

Trailerisf wrote:

You could always just by a cheap hub and connect the Cisco and the wireless to the Cable Modem. Create different segments. (What I would do)

u'r probably right. I just didn't figure out in my mind. You see, the ISP will give me only one ip(192.168.0.x). I don't know this ip is on the ethernet port of the wireless, or on the exit of cable modem. what's the address relationship between them? If i connect a hub to the cable modem and connect more than 1 pc to the hub, will i get both pc to the internet? where will the dhcp server be?

Your ISP won't give you a 192.168 address. That is coming from the DHCP on the your router.

Your cable modem will be getting an IP address from the ISP. You will set the gateway on your routers to that IP address.