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jimburdon

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problem connecting to router (and internet) through switch

I'm having trouble setting up this network.
Config is:
ISP -> speedstream 5100 modem -> 4 port Linksys BEFSR41 router -> switch -> Apple Airport

Apple Airport provides my laptops DHCP on 172.16.1 subnet

Problem is that clients on 172.16.1 subnet cannot get out onto internet or ping the router through the switch.

ISP addresses given are as follows:

> WAN Block       69.X.228.224/30
> WAN IP        69.X.228.226
> WAN Gateway  69.X.228.225
> WAN Subnet    255.255.255.252
>
> LAN Block       64.X.168.48/29
> LAN Usable     64.X.168.49 thru 53
> LAN Gateway  64.X.168.54
> LAN Subnet    255.255.255.248

Router WAN info as above.
I've also set the router LAN ip address as 64.X.168.54

{I want to also eventuallly have a web server set as one of these public lan ip addresses e.g 64.X.168.48 and connected directly to 1 of the ports on the 4 port router. This part works if I can get out to the internet from this.)

So how do I get from clients on the 172.16.1 subnet through the switch to the router and out to the WAN??????
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idarmadi

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jimburdon

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For some reason I couldn't have the linksys router act as the dhcp server since it could only give out the 5 addresses assigned by my ISP. Therefore I used the option to have the ABS act as the DHCP server and set it's ip addresses like so:
Setup your Airport Base Station's WAN IP address to an address within 64.X.168.49 to 53.
Airport Base Station's WAN IP Gateway = Linksys IP Addresses (64.x.168.54).
I also connected it's WAN interface to the linksys router.

Network works great now! Thanks for the advice.
Next steps are to set up the web server and be able to VPN into it....(port mapping and setting up VPN service on web server..)

Cheers,
Jim
Glad that it works.
However since the change Internet access has become REALLY slow.
Not sure why all points to the linksys router - any configuration on this that could cause this?
Jim,

I would check 2 things.  Cabling and IP settings (once more).

---CABLING---
Make sure that the cabling are correct between Linksys - Switch - Airport Base Station (ABS).  (What is the purpose of this switch? are you putting another client here ?  Or is it merely a 'cable extender'?).
Does your Switch has an auto-uplink port or a special port for uplink?  Make sure that you plug the correct connection to the correct port.


---IP Setting---
Make sure that you have set the IP addresses correctly.

Linksys WAN
IP : 69.X.228.226
Subnet : 255.255.255.252
Gateway : 69.X.228.225

Linksys LAN
IP : 64.x.168.54
Subnet : 255.255.255.xxx (what is the number here? I can't calculate subnetmask mentally :))
Gateway : <blank>

ABS WAN
IP : 64.X.168.49 (for example)
Subnet : <same as Linksys' LAN subnet>
Gateway : 64.x.168.54

ABS LAN
IP : 172.16.1.1
Subnet : 255.255.0.0
Gateway : <blank>

DHCP on ABS :
distribute IP addresses : 172.16.1.10 to 172.16.1.99 (for example)
Subnet : 255.255.0.0
Gateway : 172.16.1.1 (ABS's LAN IP address).

On your notebook, set up the DNS to the DNS supplied by your ISP.

Good luck. :)