Connecting two airport extreme through lan-ports?

Hi,
New to the Airport Extreme and as I am reading up on it I can see that one can extend the network from one to another...
Now we have an ISP coming in with one point and five IP's in total
we have several Airport Extremes, a few with special service on them like printer, time capsule etc
Now, the building stops the signal from reaching all places, but we do have wire
would it be possible to use two separate AE's using one public IP each as the WAN, i.e. -> Internet
but connecting them together via the LAN ports to be able to share common resources?
or must I connect the WAN of one to the a LAN port of the other?
wished solution
Internet
|
Switch
|    |
|    |     / shared printer
|    AE2---- DHCP 192.168.5.151-200
|     |
|     | (LAN Crossover) .i.e. 192.168.5.1 & 192.168.5.2
|     |
AE1----- DHCP 192.168.5.100-150
   \ timcapsule & shared printer
Is this even possible?
Or how would we share printers and tc over public ip otherwise?
/Dhurgan

Normally we would not advise people to use Apple routers which are definitely home/domestic for a business use with a block of IP addresses which is not so easy to setup.
Anyway what you are suggesting will work. The trick of course is that both routers have to be different ip ranges, and different IP addresses so the clients behind them get different gateways.. but since you are all on the same IP range then you can actually reach any of the local clients from either AE..
Give it a try..
If you run into trouble I think you will need a single enterprise class router and just use the AE in bridge as WAP and print servers and whatever else.. 3 port gigabit switch??

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In 2), the "modem" is acting as just that, a simple modem with AE1 acting as a router and AE2 acting as a "bridge" to AE1.
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I have an Airport Extreme base station that doesn't seem to be communicating through its WAN port. Both Apple and Windoze computers can connect to it, wired or wirelessly, but I am unable to make the base station communicate with a gateway device, a (PPoE) DSL modem. My brother (whose device this is) was having the same problem with his cable modem.
As the Airport boots, the link light on the WAN port blinks green a couple of times, only instantaneously, but otherwise remains dark. Once it's booted, the status light blinks amber. And of course there is no throughput, no connectivity to the Internet.
I also have a LinkSys WiFi router that works perfectly using the same gateway device and the same ethernet cable, which gives me to believe both the modem and the cable are in proper working order. All the configuration information I'm entering into the Airport's web interface I'm cut and pasting from the same text file I habitually use to the LinkSys router (to cut down on clerical errors). So presuming it's configured properly, presuming the cable and the gateway aren't at fault, I have to think the WAN port has given up the ghost.
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I have discovered the chief problem was that the Airport doesn't take kindly to unresolved/unacknowledged errors/conditions under the Status button on the Summary page of the Airport utility. It was regarding "extended mode" as an abnormality requiring acknowledgment, as well as my switching off all wireless security, as a temporary diagnostic measure. Once I'd told it to 'Ignore' those conditions, I got both a solid green status light and a steady green link light on the WAN port.
However, it still isn't passing data.
As I was stumbling around in the Airport utility's GUI (before resolving the "start button" problem), I noticed it had an "Extend a wireless network" mode. Since what my brother was after in the first place was getting stronger signal to the far end of the house, I asked if this wouldn't better suit his needs than substituting the Airport for his current (underpowered?) WiFi router. He agreed, so I've changed my focus to setting up the Airport as an 'extender.'
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I also have an XPSP3 box connected to one of the LAN ports on the Airport. The NICs on both ends show a solid green link light. The Airport's logs acknowledge that the XP box is connected: "Connection accepted from [::ffff:192.168.1.3]". And the XP box can 'ping' the Airport. All of which spells "connected" to me.
However, the XP box can neither draw an IP address (the Airport's DHCP clients list remains empty) nor communicate with anything upstream of the Airport (which it only can do once I have given it a static IP address). If I try to tracert or pathping from the XP box to the WRT54 (via the Airport), it stalls out at the Airport. The response is the same whether I have the Airport's WAN port connected to a LAN port on the WRT54 or not.
Address scheme-wise, my WiFi router (WRT54) is on 192.168.1.1. The XP box that I have connected to the Airport via ethernet has a reserved IP of 192.168.1.3, but now is configured statically to that address because the Airport (seemingly) does not support it contacting the DHCP server. The Airport consistently had been drawing the first available address from the DHCP pool, 192.168.1.10, but now I have it statically configured to .100 because my brother doesn't use DHCP reservations on his network, and I'm replicating how he will configure it to leave nothing to chance. Having a static address saves him grief having to figure out what its address has become should the Airport utility not be able to find it (which seems to be its norm) and he has to connect manually through the Airport utility.
I've spent almost every waking minute tinkering with this thing since midday yesterday and I've not yet seen evidence that the Airport has passed so much as a single bit of data. And it isn't just the WAN port, it doesn't want to pass anything wirelessly either. This thing is about to get my goat. Remind me never again to offer my brother a favor.
Any thoughts? Humorous anecdotes? Naughty limericks?
EDIT:
I also have a network detector on my cell phone than can identify every device, wireless or otherwise, on the network its connected to. But it does not "see" either the Airport or, naturally, the XP box beyond it.

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I have just bought my second Airport Extreme to create a wireless network with the best possible signal. I have one Airport Extreme in my office and the second one (supposedly the remote base) in the living room, two brick walls and 7 meters away. I have follow Apple instructions for the setup, main base "Create a Wifi Network" and Extend network option selected. The remote "join an existent network" and Allow wifi clients selected. According to Apple this is a WDS network between two Airport Extreme.
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Thank you Bob for your time.
I understand from your words that with a DHCP reservation I can force de Airport Extreme Main Base to assign an specific IP to a particular client in the network. Is that correct?. If that is the case, I will reserve the 10.0.1.3 to the Twonky Media Server (I need this to be fixed to this IP) and I will change the configuration of the remote Airport Extreme to DHCP automatic.
I will give it a try in a few days. I have spent so many hours with this set up that I am a bit terrified to start again today, to tired from work.
Just one last question. Setting up the remote Airport was very difficult with the Airport Utility. I had to reset and start many times as I always got two errors in the set up:
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Best Regards,
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Just to verify... you have connected the Ethernet output of the SpeedStream ADSL modem to the WAN port on the AirPort Extreme base station (AEBS).
Have you also configured the AEBS to use the correct parameters to connect to your ISP?

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I have a mac book pro that i use with an airport extreme unit. When the laptop comes out of hibernation it does not connect to airport extreme. I have to put it back to sleep and start for the second time for it to connect. Any ideas on what the problem is?
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Hi Laurent,
although I was given the advice earlier that I should simply take the machine back to the shop, or call the help centre, I ended up just praying that it would be OK. A couple of days after I posted the message I think there was an update to download and install, just a regular one from Apple from the Software Update option for the operating system or it may have been one for Final Cut Pro X, and once it installed I never had the problem again, so my prayers were answered.
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I'm now running 10.7.2 and have had no recurrence of the problem in many months, thankfully.
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GoldHill wrote:
USB Backup drive connected to USB port on Airport Extreme. Running system 10.5.5
On my Macbook Pro, which I connect wirelessly, I was able to start Time Machine... Time Machine saw the backup drive and did a backup.. Yes it took a long time!! Anyway all is cool with that.
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One other important thing to mention. At first I plugged my new backup hard drive directly into the iMac with firewire 800. I started time machine and started the backup. I then stopped that backup and plugged the backup hard drive into the Airport extreme (USB port) I then trashed the partial backup folder off the backup hard drive. Is it possible that on the iMac there is still some TM file there pointing to the old original backup file??
have you emptied trash? you should. the files won't really be deleted till you do. there is one other hidden file but it should not be necessary to remove it.
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Im having issues with my iphone not connecting through my basement airport extreme.
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Connecting two airport extreme through lan-ports?

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