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Multiple Static IP Addresses and Linksys Router

I have a LinkSys DSL/Router with 8-ports. The ISP give me a five valid static IP addresses. I have 4 computers attached on the router, plus one wireless router, and I want to put each computer/device a valid IP address. How could I do this? My linksys router is a BEFSR81.

michaelgoldsmith

Actually, you can put 1 of your valid IP addresses on the router and use the built in DHCP functions of your Linksys to hand out IP addresses to your local PC's.

Add the valid IP from your ISP to the WAN section of setup, and put the LAN IP address of 192.168.1.1 in as well. Then find the enable DHCP section and turn that on. Set a valid range of IP addresses (in your case, 192.168.1.10 - 192.168.1.30 should be fine for 4 desktops, and printers, and any traveling laptops that come into the office).

That should do it.

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page1985

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Irwin W.

Also, if your ISP gave you 8 IPs, lke mine did, they usually have a firewall built into their modem.

You can use that to manage traffic to your public hosts also.

Now, to page1985's point, unless you are host websrvice on all 8 computers, you only need one of those IPs

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Darr247

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Faruk Onder Yerli

Dear Jumpseatnes;

Linksys is not enough ability to make ip base static NAT. But it can make PAT for you. you can define DMZ ports and redirect some ports to inside. Or Linksys will not work on NAT mode. It will work on routing mode. ISP gave to you /29 network.(Check model /29 network below).

213.74.1.0/29
213.74.1.0 Network Address
213.74.1.1 Linksys gateway
213,74.1.2 Host 1
213,74.1.3 Host 2
213,74.1.4 Host 3
213,74.1.5 Host 4
213,74.1.6 Host 5
213,74.1.7 Broadcast.

jumpseatnews

ASKER

Thank you everyone for your comments.

page1985, this seems like the best solution for me. I must have 5 public IP addresses for the computers on my network. You mention to 'plug all your computers into it, and you should be good to go'. I assume that my DSL modem is also plugged into the switch as well, or do I use my existing Router to plug into one of the switch ports, and then have my DSL phone line plugged into the router?

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Irwin W.

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Darr247

equalizer said,
> 213.74.1.1 Linksys gateway

Usually the ISP reserves the first one (or last one before the broadcast) to assign to a port on the layer 3 switch that feeds the customer, and that's also the ''default gateway'' IP address the customer is given.
So there are only 5 left for the customer to use at their location.

Faruk Onder Yerli

It has two type of connection is posible. LAN & WAN
if ISP assigned /29 address on WAN; yes you are right.
If ISP said that it is for LAN, Linksys is using different WAN Block. /29 block can routed on WAN block.

page1985

Yes. You would buy an 8 port or larger switch. Plug your modem into your switch, then plug your computers into your switch. They can all see each other and will have public IP addresses on the internet.

jumpseatnews

ASKER

The help on this forum is unbelievable. I'll be using the initial recommendations of page1985 and final solution, the flowchart from nappy_d, as assist and the router recommendations from Darr247 assist. Thank you everyone for your help---it was much appreciated.

Chris