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- Path: news.accessus.net!news
- From: shappel@accessus.net (Scott Happel)
- Newsgroups: alt.winsock,alt.winsock.trumpet,comp.dcom.modems
- Subject: Re: MTU Settings
- Date: Sun, 25 Feb 1996 03:03:52 GMT
- Organization: accessU.S.
- Message-ID: <312fd174.15125233@204.248.93.100>
- References: <4g7u9u$86u@news1.ucsd.edu> <31288F81.39DF@cerberus-sys.com> <4gei1a$eh7@its.hooked.net> <4glipb$14c@rcp6.elan.af.mil>
- Reply-To: shappel@accessus.net
- NNTP-Posting-Host: bville-pm2-1/110.accessus.net
- X-Newsreader: Forte Agent .99d/32.182
-
- cpats@pan.gbm.net (C. Patrick Sadowski) wrote:
-
- >In article <4gei1a$eh7@its.hooked.net>, fullertons <pandata@hooked.net> wrote:
- >> ..outstanding....thank you
- >> --
- >If there is a way to alter the MTU and RWIN settings (sorry, didn't catch the
- >first part of this post) please e-mail me and advise. Thanks alot!
- >
- >Pat
- >csadowsk@pan.gbm.net
- >> http://www.hooked.net/users/pandata/
- >> john fullerton
- >> alameda,ca
- >> pandata@hooked.net
- >>
- >>
- >
- MTU and RWIN are hidden in two different places in the Registry. MTU can
- be set for each protocol-adapter binding; RWIN is set globally.
-
- For MTU, open the Registry to:
-
- HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\NetTrans\
-
- Figure out which 000n is the TCP/IP protocol for your DUN connection by
- looking at the other values, then open up that 000n.
-
- Inside that 000n, create a new string variable called "MaxMTU" and enter
- your value. 1500 is the default; some terminal servers work better with
- 1002; lowest you should ever need is 552. In general, use the highest MTU
- your machine can handle without overruns.
-
- For RWIN, open the Registry to:
-
- HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP\
-
- Create a new string variable called "DefaultRcvWindow" with a value 4
- times (MTU + 24).
-
-
- Scott
- shappel@accessus.net
-
- http://www.accessus.net/~shappel/welcome.html
-