----- Original Message ----- From: "Yann Nottara" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, July 17, 2003 6:53 PM
Subject: Re: MPD 3.13 PPTP server MTU problems & questions
but now, what do you think of this ?
ng0: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> mtu 1500 inet6 fe80::2b0:d0ff:fee1:4874%ng0 prefixlen 64 scopeid 0x7 inet 192.168.0.10 --> 192.168.0.200 netmask 0xffffffff
and here's the part from my mpd.conf that's related to this connection :
pptp0: new -i ng0 pptp0 pptp0 set iface disable on-demand set iface enable proxy-arp set iface idle 3600 set bundle enable multilink set link yes acfcomp protocomp set link no pap chap set link enable chap set link keep-alive 10 60 set link mtu 1460 <----------------- ! set ipcp yes vjcomp set ipcp ranges 192.168.0.10/32 192.168.0.200/32 set ipcp dns 192.168.0.10 set ipcp nbns 192.168.0.10
So, where's the catch ?
Pretty much the same config as myself, with the exeption that I have:
set bundle enable compression set ccp yes mppc set ccp yes mpp-e40 set ccp yes mpp-e128 set ccp yes mpp-stateless
Sorry, I forgot to include that part but I use it too.
I've set the MTU to 1460 - as you have, which seems to give me 1396 when a client connects.
So far, I've only tested this with Windows XP machines, so I'm not sure if anything OS-specific concerning the MTU is negotiated during the connect phase, or even if having MPPE enabled would affect it.
My PPTP clients are all Windows 2000 machines.
I imagine you've tried setting the MTU to other values?
Right, and it's all the same (but now I understand why after reading a post from this thread by Archie Cobbs.
Best regards, -Andy
Thanks for you help & comments.
--Yann
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