| reply to Bill_MI
Re: MTU, PPPoE, Servers and LinkSys Routers sorry to add to this "older" post...
I have an exchange 2000 server behind a linksys router, and all seems to work ok... the only thing issue is with VNC, it hangs at the "Please wait - initial screen loading" screen.
could this also be classified as an MTU issue? |
|
 Bill_MIBill In MichiganPremium,MVM
join:2001-01-03
Royal Oak, MI
kudos:1
 ·Comcast
·WOW Internet and..
| said by 2yLiTe:
... the only thing issue is with VNC, it hangs at the "Please wait - initial screen loading" screen.
could this also be classified as an MTU issue?
It sure could but it makes you wonder why Exchange doesn't have the same issue. Try reducing the MTU of the box with the VNC server and if the problem disappears you know what it is.
Remember, if the MTU of the accessing site is already low enough the problem won't be seen at all. If it's easier to reduce the MTU of the VNC client end to try that'll prove it, too. I assume the VNC server is behind the LinkSys on a PPPoE connection? |
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| reply to Bill_MI
Bill after all day of searching trying to figure out why I was having this problem with dcc's (until recently I had no problem sending to 56K modems but did with broadband connections) I finally found your information on MTU I had just updated my linksys firmware to 1.4 and went in and set it where you instructed and OHHHHHHHHH YESSSSSSSSSSS IT WORKS!!!!!!!!!!!!! Before I would actually connect and then would hang. |
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 jw55505Fish HeadPremium
join:2001-11-28
Mechanicsville, VA | reply to Bill_MI
For any of the FreeBSD users out there who are running servers with your PPPoE/Linksys setup, you can change the MTU on your NIC with ifconfig like this:
"ifconfig eth0 MTU=1492"
I believe this also works with Linux. I set the MTU on all of my internal machines to 1492 from day one and have never had any problems. I run a FTP and web server no problem with my PPPoE/Linksys setup. I run FreeBSD, Win NT4, Win 2K and Win 98. All run smoothly.
Here is a link to an interesting article that talks about the same issues Bill was talking about when running a gateway on PPPoE. Scroll down to section 6.3 |
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alhull
join:2002-01-16
Canton, MI | reply to Bill_MI
I have my new Earthlink DSL service working fine with no drops/freezes, etc, connected directly to a single PC's NIC. So the DSL service is working fine. It ran web radio all night long with no disconnects.
But when I try to get my LAN going again using my BESFR41, I can only get a PPPoE connection that lasts maybe 5 minutes and then I always lose the connection to the PPPoE server.
My Linksys firmware is still back at v1.33.4 or such. I've got PPPoE enabled on the router with "Keep Alive", currently have all DHCP disabled and I'm using static IPs on my PC (192.168.2.x), Router is 192.168.2.1.
The MTU on my PC is set to 1500 as DrTCP util shows. Is losing the connection to the PPPoE server a symptom of the same issue being discussed here? Should I get the latest Linksys firmware upgrade with the MTU feature in it and reset my MTU down from 1500 to an appropriate lower value?
I am desperate to get my LAN working again. HELP please!! |
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Bill_MIBill In MichiganPremium,MVM
join:2001-01-03
Royal Oak, MI
kudos:1 Reviews:
·Comcast
·WOW Internet and..
| I don't run PPPoE (yet) but constantly hear the latest firmware is much better at it. Not to mention the MTU setting (set it to 1492). The Earthlink and Covad forums are probably full of good info, too.
If you're running a server like http or ftp then this thread is all about the more special MTU issue that can exist. |
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alhull
join:2002-01-16
Canton, MI | reply to Bill_MI
The new firmware seems to have done the trick!! No dropped connection for over 5 hrs so far. Thanks for the tip!
Regards, Al |
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