Airport Extreme causes ssh_exchange_identification for SFTP

I get ssh_exchange_identification during a client SFTP session to webserver behind a Load balanced server.
SFTP works with Lion and Snow Leopard but does not work with my Airport Extreme in place. SFTP also works with other firewalls in other networks. It seems the Airport is the culprit. This should be straight forward as its just a client session going out. Tried many modification to OSX but not sure if they are really needed since SFTP works fine without the Airport Extreme. Aiport is running 7.6.1. Below is the SFTP log.
$ sftp -v -v -v [email protected]
OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to XXX.XXX.XXX.XXX [XXX.XXX.XXX.XXX] port 22.
debug1: Connection established.
debug1: identity file /Users/USER/.ssh/id_rsa type -1
debug1: identity file /Users/USER/.ssh/id_rsa-cert type -1
debug1: identity file /Users/USER/.ssh/id_dsa type -1
debug1: identity file /Users/USER/.ssh/id_dsa-cert type -1
ssh_exchange_identification: Connection closed by remote host
Looks to me a connection is started on port 22 then gets clipped. Any help would be greatly appreciated.

my IP did not sure. i am positive of that.
The DNS problem is not constant, sometimes it works without pinging the others i have to ping manually.
by the way, i am trying to SSH into the same computer i am using :S
i know it is stupid not to SSH user@localhost
yes, @localhost works, but before that day, i used to ssh @my IP
HTTP works perfectly again, it was a DHCP error

Similar Messages

I cannot add a Wi-Fi guest network. Gone to Utilities Airport Utilities and all get is an image/browser of my Airport Extreme. Looking for the browser which has the title Wireless but cannot find anywhere. I need help?

I cannot add a Wi-Fi guest network. Gone to Utilities>Airport Utilities and all I get is an image/browser of my Airport Extreme. Looking for the browser window which has the title Wireless but cannot find anywhere. What am I doing wrong?

Open AirPort Utility. The first screen looks something like this:
Click on the AirPort Extreme and another screen will appear. Click Edit, then the window with the Wireless tab will appear.
If you do not see these screens, you will need to start over and configure your AirPort again.

Can you use airport extreme 802.11n for files backup

Can you use airport extreme 802.11 for files back up and sharing

You can if you connect a hard drive that has been formatted correctly to the USB port on the AirPort Extreme.
Apple does not officially support Time Machine backups for this type of setup, but you could store regular files this way.

AirPort Extreme (Still) Looking for a PPPoE Host

Help! I have a PowerBook G4 (OS X 10.4.2) that I've used with my AirPort Extreme for over a year and half without any major problems. I upgraded to AirPort 4.2 last week without incident, but since yesterday my base station hasn't been able to connect over PPPoE to my DSL.
Sometimes the AirPort Admin Utility can't find the base station, even after a hard reset; sometimes it can find it but not configure it ("there was an error configuring the base station"). Even if I can connect to the base station and configure it, though, the base station still won't connect to the internet ("Looking for PPPoE host" for about 5 minutes, followed by "Not connected via PPPoE. There was no answer.") I can get on the internet without any problems if I connect through the built-in Ethernet, at least once completely reconfigure the network port settings.
I'm not sure what to do at this point; I've tried to reset both the base station and the modem over 20 times (including leaving them unplugged for an hour), and "rebuilding AirPort from scratch" like one of the other posts suggested, but nothing seems to work. At this point I'm considering re-installing the software AirPort came with (3.1) or re-installing Tiger, though I'm not sure 3.1 will work with Tiger--and I'd prefer not to rebuild the entire system.
Any ideas?

I'm suffering from the same problem but was able able to run airTunes. First, go to admin and tell it not to connect using PPPoE but make sure you uncheck the PPPoE in Network. Now the other problem that I have is the latest Airport Admin Utility. It will not connect. Solid green light, AE is just a metre away and it says 'can't connect to the net. So how do I remove Admin 6.4 'cause that's the main problem. i've installed the Express firmware 6.1.1 & 6.2. I'm buggerd if I know.

AirPort Extreme Causes WinXP to Restart

I installed a new AirPort Extreme yesterday in compatabiity mode.
1. Works perfectly with my MacBook.
2. Works perfectly with my WinXP laptop.
3. Causes my WinXP desktop (freshly installed) to restart when attempting to connect to the network... every time.
There is no error message or blue screen... just a sudden restart. I suspect it is a compatibility issue with the Linksys WMP11 wireless network adapter and installed the latest driver from Linksys.
Are there any settings that need to be changed to correct this?

Thanks for the welcome.
In a sense, it is an AEBS issue as the Linksys adapter works with other routers. The problem began with the introduction of the AEBS into the network.
As in marriage counseling, the issue is not with one or the other but between the two (not that I would know).

How do I open the same ports on an Airport Extreme Base Station for multiple computers at the same time?

As the title suggests...
I have a mix of five Mac and PC's at home using an Airport Extreme Base Station as the router.   I need many ports opened on the AEBS for all of the computers- not just one computer. (for example: three people want to play TF2 on Steam at the same time; each machine needs the correct ports open on the router).   Port forwarding only allows me to forward a given port to a single IP, yet I need that port open for five differnt IP's, all at the same time.
How do I do that on an AEBS?
In the same way, I have a small office of four iMacs using an old airport with the same exact issue.   I would like to be able to connect to all of them remotely with Apple Remote Desktop, but the port forwarding on the airport only allows a port to forward to a single IP.   I want to be able to tunnel into the office network and log onto any machine behind the Airport extreme... not just a single IP.    I currently have it set up where I can tunnel into the office from my house, I can find the one machine that the port forwarding has been assigned to, I can log on and everything is just fine... with one machine.    How do I open the firewall for the other machines?
TL,DR version: How do you open ports on an Airport Extreme Base Station instead of forwarding ports?   Forwarding ports doesn't work for multiple IP's.

You can open a single or multiple ports to a single device or different ports to different devices, but you cannot open the same port to multiple devices via the AirPort Utility for the Apple routers.

Connecting HDD to Airport Extreme causes orange death light...

I am in a small office network with mix of pc and mac (7 pc's, 1 iMac, 1 wireless iMac, and 3 wireless macbook pro's). Internet connection comes into building directly to airport. Airport then feeds a couple of systems directly and a Dlink 24port ethernet switch which connects all other hardwired network connections.
I just purchased a Seagate Freeagent Desk 1.5TB external USB2 drive to be used as a network storage drive (not with time machine just grabbing and dumping files for interoffice sharing). Removed preloaded software and formatted fat32. Disk will be mounted and recognized when connected to any mac directly. When connected to the usb port on the airport extreme it begins to initialize and then bombs. Airport gives the orange death light and there is no connectivity to the router for all (ie internet connection, etc.) When you unglug the HDD the router reboots and then goes back to green light of peacefulness. What am I missing? Setting? Order of connection? Not hitting it hard enough on the ground with a large 10lb sledge hammer? Help me out...

you may need to restart the AEBSn with the drive plugged in.
since it might have been long since the AEBSn was restarted and anything else attached to it.
or a restore to factory settings...
i know not the best you want to hear, it should just work.
make sure all the AEBSn updates are there...etcetc
i was having this problem the past month or so and it started working again flawlessly after a few restarts.

Apple Airport Extreme Base Station for PPPoE, DHCP and NAT with ActionTec DSL modem

I just spent several hours trying to track down proper instructions for setting up my Apple AEBS to do the PPPoE, DHCP and NAT while connected to an ActionTec M1000 (no wireless module). It turns out my initial set ups on both devices were correct, but that the order for rebooting and reconnecting the two devices is critical. All of the threads I found on this forum and on many others suggested this was not possible, but it is. What I don't yet know is whether it is the best method for running my home network DSL connection to my ISP (CenturyLink).
The instructions I found that worked come courtesy of Brandon Konkle's blog and are both simple and clear: http://brandon.konkle.us/post/19637529637/centurylink-actiontec-q1000-airport-ex treme-bridge
The proper settings for the ActionTec DSL Modem can be found under Advanced Setup/IP Adressing/WAN IP Address
Click RFC 1483 Transparent Bridging then click on Apply.
(see also http://qwest.centurylink.com/internethelp/modems/m1000/pdf/M1000_BRIDGE.pdf )
To reduce time, do this BEFORE you reset your AEBS then set the AEBS so that you don't have to wait for the AEBS to reboot.
In contrast to what Brandon described for the Q1000 modem, my AEBS never reconnected to the modem (he describes his as getting an IP from his ISP, then dropping it then getting another over and over - mine never got an IP). Once you have reset both devices as described, the critical steps I have not found described elsewhere were:
1. Disconnect the power from both the modem and the Airport Extreme.
2. Disconnect the Ethernet cable between the two devices
3. Restore power to the 2 devices and allow them to fully reboot. For the ActionTec M1000, this is indicated when the lights stop blinking. (Note that the Internet light will NOT be lit in this instance since the modem is acting only as a bridge. You will NOT have an Internet connection until the AEBS is reconnected.) The AEBS will be blinking yellow.
4. Reconnect the Ethernet cable between the devices (make sure on the M1000 that you are using the connector with the circle icon over it, not the arrow icon).
Within about 60 seconds, the AEBS light went to steady green and the connection to the Internet was restored.
Now I have to see if this is a more stable configuration than the flaky one I had before while using the AEBS as a bridge and the M1000 to do everything.
Does anyone think or know if it will make a difference?
Message was edited by: Bud Shaw

Now I have to see if this is a more stable configuration than the flaky one I had before while using the AEBS as a bridge and the M1000 to do everything.
Does anyone think or know if it will make a difference?
No one can accurately predict in advance what the actual results might be. I've tried both ways with different products and cannot say that one method is better than the other. What works is best.
In theory, it is preferable to have the modem provide the PPPoE connection service since it is the device connected directly to the Internet.
In practice, results vary depending on the service provider, products used, phase of the moon, alignment of the planets, etc.

Airport Extreme drops connection for a few seconds at a time

My airport extreme seems to drop its connection for about 5 seconds at a time and then is back up. It does it every 10-15 minutes or so. I am not really sure why it is doing this because it has just started happening recently and worked fine for months and months. I need help because I dont know much about networking.

When you inserted your AirPort Extreme (It was an AirPort Extreme card, right?) card in your G5, did you attach the antenna cable AND the external "T" antenna?

Airport Extreme & Remote Access for database application

Hi There,
I have spent an entire week of my time between apple, apple consultants and networking experts trying to get a access remotely to a simple database program inside an wireless network. I have read the discussions on remote access thru the AEBS and port mapping.
I'm hoping an user here can help me with a foolproof solution that the 'apple experts' can seem to design?
All that is required to get this program up and running remotely is the ip address of my computer inside my wireless network. I have set that this computer to a static address but since my dsl provider uses dynamic IP's this doesn't seem to work (or it does for about 12 hours until the IP address of my AEBS is changed). Will port mapping work for me or is my only solution an up-charged static IP?
Thanks in advance for any suggestions......the thought of spending another week on this is frightening!

If your ISP is refreshing the dynamic host configuration of the public ip address assigned to the ISP provided router you will need to request a static ip address from your service provider.
The addresses that are used "inside of your network" are private ip addresses. If you are using the (1) public address for your router (APE)(Apple airport extreme) from the ISP what you are trying to do will not work very well since your router (APE) will use the Public IP address to provide access to the public internet for your private network using the private ip addresses you have used to create your subnet and told your router (APE) about. Three private IP address schemes can be used for a private internet. One for each class. Class A 10.x.x.x/8, Class B 172.16.0.0/12 and Class C 192.168.0.0/24. Translated using dynamic NAT (network address translation with overload) making your LAN hosts using private IP addresses to seem as if they are using a public ip address allowing access to the public internet where only public ip addresses can be used.
PAT (port address translation) is what you are trying to accomplish. For PAT you must have a valid public ip address from your ISP and a private address from your network assigned to interesting host. Use the private ip assigned to the interesting host in the port mapping panel of airport admin that you wish to allow access to via the global internet as well as the tcp or udp port number for the traffic to be directed. For example port 5003 for FileMakerPro or port 20 and 21 for ftp. You should also implement security policies to protect your network and hosts.
Since you said that it works for 12 hours you must have the basics set up correctly. All you need now is to get a static ip address assigned to you from your ISP or use a service such as http://www.dyndns.com/
Hope I didn't ramble on too much

I have a MacBook ProDo I have to have the Airport Extreme Base Station for my Airport Express to work?

I cannot get the darn Airport Express to work! It just keeps blinking Amber. I know it must be something silly I am over looking. And I do not have the Airport Extreme Base Station.
Thank you for any help!!!
Elizabeth

Thanks,
This is the rear of your modem/router:
Connect a Cat5e or Cat6 cable from any of the 4 Ethernet Lan ports to the (single) socket on the Express, then go to Airport Utility (Applications>Utilities>Airport Utility) and select create a new network.
You will need to turn the wireless transmiter in the Netgear off, here is a link to the Netgear Manual in case you need to refer to it.
Netgear Manual

AirPort Extreme 802.11n for older Macs?

Are there any plans for Apple to release some sort of upgrade for older Macs so that we can use 802.11n wireless networking?
I have a Power Mac G5 (2.5GHz DP) and a MacBook Pro 17" Core Duo (not Core 2 Duo), so the hardware in my Macs doesn't handle the 802.11n specification. (Please note that I'm not talking about the software enabler. That's not going to work on older hardware.)
Are there plans for new AE cards that can be swapped into the G5s or an ExpressCard 34 card for the laptop?
(And why oh why does the UK government not allow wide channel? UK consumers are stuck with only a 2.5x speed increase, whereas US consumers get the full 5x speed increase.)
Thanks!

802.11n refers to a speedy wireless connection. When
you connect with a wire, you're not using 802.11 at
all. You're using Ethernet, and your Core Duo mac
will connect to the Airport Extreme at 100Mbs (a
little faster than the top speed of 802.11n). Then
The top speed of 802.11n is considerably faster than 100Mbps. In narrow band mode, the Airport Extreme cards are connecting to AE Base Stations (AEBS) at 130Mbs. In wide band mode, 270Mbs. In theory, that makes connecting to the new AEBS device wirelessly faster than via the wired ethernet. It's a design decision that just doesn't make sense in my opinion.

Airport Extreme causing "Connection Failed" to connected disk

I have a relatively new Airport Extreme, with a MyBook 500GB external hard drive connected to it. There are 2 Macs (a MBP and Mac Mini) that backup to that hard drive wirelessly with Time Machine. Both Macs have no problem connecting to the disk drive for a couple of days or so, and then all of a sudden, Time Machine reports an error, and when trying to open the drive in Finder, I get the error message "Connection Failed". Every time this happens, I can fix it by unplugging the drive from the Airport Extreme, and plugging it back in. That will usually make it work for a couple of days, but sometimes less time than that.
I can't see it being a formatting issue with the disk, or any kind of connection issue, since it does work for a period of time. But why is does it suddenly stop working for both Macs?

Welcome to the discussions!
Your drive is formatted correctly if you have been able to make Time Machine backups.
Part of the problem may be that Apple does not officially support Time Machine backups to a drive at the USB port of the AirPort Extreme. That doesn't mean it won't work...it's just that Apple will not provide any help when difficulties arise with this configuration.
Some users report that this works well for them and others report intermittent to constant problems.
You might try using Disk Utility to check and repair permissions on your computers that are backing up to the Time Capsule.
Hard Drive > Applications > Utilities > Disk Utility
Click the disk on the left that exactly matches the name of the hard drive on your desktop. If you have not renamed it, it will be Macintosh HD.
Click Repair Permissions. This will take 30-60 minutes on average.

Airport Extreme's support for streaming video NOT reliable for RealPlayer

AIRPORT EXTREME BASE STATIONS DO NOT RELIABLY PROVIDE STREAMING SUPPORT USING NORMAL TRANSPORTS FOR REALPLAYER.
Based on a problem I've had for a long time and information provided in RealPlayer OnLine Help, it appears that the Airport Extreme Base Stations do not reliably provide streaming support using normal transports for RealPlayer.
HERE'S THE REASON FOR CONCLUDING THAT
Even after updating with the latest software and firmware available for my Airport Extreme Base Station, RealPlayer will not play streaming video when my iMac is online via my Airport Extreme Base Station.
(The configuration is iMac (non-wireless) --> Ethernet cable --> Airport Extreme Base Station --> DSL modem.
Note that with that configuration I can browse the internet and play audio through RealPlayer - even though I cannot play streaming video.
In contrast, when my iMac is connected directly to my DSL modem via an Ethernet cable, then I have no trouble playing streaming video in RealPlayer.
HERE'S THE "WORK AROUND" SOLUTION I'M USING
In RealPlayer/Preferences/Transport, I selected to use HTTP transport exclusively.
Here's where to find details of that solution in RealPlayer's OnLine Help:
In RealPlayer's Help menu, choose RealPlayer Online Help. Scroll down the left side of RealPlayer's help window to find the section Troubleshooting -> Network/Connectivity -> Wireless Issues.
CREDIT FOR PUBLICISING THE "WORK AROUND" SOLUTION IN APPLE DISCUSSIONS
I found the aforementioned "work around" solution in a posting in this forum by Greg Robbins on Sep 2, 2005.
The topic in which I found that posting has been archived - replies are not allowed.
I am posting this topic to clarify the deficiency in Airport Extreme, and to help keep this solution available for the Mac community.
G4 iMac Mac OS X (10.3.9)
G4 iMac Mac OS X (10.3.9)

I should not have started this thread as a "question".
The initial posting presents a problem together with a "work around" solution.

Airport Extreme as Repeater for FritzBox 3390

Hello!
I want to enlarge my LAN and WLAN at home. In my LAN the connection to the internet is done with a Fritz!Box 3390.
Is it possible to connect a Fritz!Box 3390 as base station with an Apple Airport Extreme for instance as a WLAN repeater?
Is it possible to enlarge my LAN via ethernet cable with one certain IP address (e.g. 192.168.10.*) by connection with an Airport Extreme? And if so, must I use the WAN adapter or a LAN adapter of the Airport Extreme? For my devices I have the need of at least three additional LAN connections.
Thanks for help,
Michael

Apple has designed their AirPort routers to be compatible with other AirPort routers for the purpose of extending the network wirelessly.
So, it would be extremely unlikely that an AirPort router could extend the signal from your FritzBox router.
If you decide to try the AirPort Extreme, it would be a good idea to make sure that you can return the product if it does not work......since there is almost zero chance that it will work.

Airport Extreme causes ssh_exchange_identification for SFTP

Similar Messages

Maybe you are looking for