@related unicorn Modem BeWAN PPP

MTU :

http://forums.grenouille.com/index.php?showtopic=28461&st=15&#entry518559

http://www.hifocus.net/phpBB/viewtopic.php?t=16407&highlight=t%E9l%E92+routeur+bewan)

http://forums.grenouille.com/index.php?showtopic=9156

http://linuxfr.org/comments/447424.html#447424

Recommended Values

  • 576 : Dial-up Connections
  • 1280 : IPv6 min value
  • 1492 : PPPoE Broadband Connections
  • 1500 : Ethernet, DSL and Cable Broadband Connections

Restart Windows for the change to take effect.

http://www.speedguide.net/analyzer.php

[[Linux]]

ifconfig ppp0 mtu 1280

[[Windows]]

ping -f -l ${MTU_SIZE} ${ISP} #

Note: For Windows NT 4 the key is :

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters
C:\WINDOWS\Bureau>ping -l 248 -f 83.179.194.150
Envoi d'une requête 'ping' sur 83.179.194.150 avec 248 octets de données :
Réponse de 83.179.194.150 : octets=248 temps=1 ms TTL=128
C:\WINDOWS\Bureau>ping -l 249 -f 83.179.194.150
Envoi d'une requête 'ping' sur 83.179.194.150 avec 249 octets de données :
Les paquet doit être fragmenté mais paramétré DF.

ClosedSource :

[[Modem]] [[BeWAN]] [[unicorn]]

Browser/OS = Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
TCP options string = 020405b401010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.
Default Receive Window (RWIN) = 64240
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 64240
RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8)
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
bandwidth * delay product (Note this is not a speed test):
Your RcvWindow limits you to: 2569.6 kbps (321.2 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1027.84 kbps (128.48 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 123 hops
TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000 (0)

[[Modem]] [[BeWAN]] [[unicorn]] on [[Linux]]

# plog
Aug 26 19:33:42 localhost pppd[[7955]]: Plugin pppoatm.so loaded.
Aug 26 19:33:42 localhost pppd[[7955]]: PPPoATM plugin_init
Aug 26 19:33:42 localhost pppd[[7955]]: PPPoATM setdevname - remove unwanted options
Aug 26 19:33:42 localhost pppd[[7955]]: PPPoATM setdevname_pppoatm - SUCCESS:8.35
Aug 26 19:33:42 localhost pppd[[7957]]: pppd 2.4.2 started by root, uid 0
Aug 26 19:33:42 localhost pppd[[7957]]: Using interface ppp0
Aug 26 19:33:42 localhost pppd[[7957]]: Connect: ppp0 <--> 8.35
Aug 26 19:33:42 localhost pppd[[7957]]: Couldn't increase MTU to 1500

http://www.kerneltraffic.org/kernel-traffic/kt20000501_65.html

mtu.txt · Last modified: 2020/09/08 20:45 (external edit)
 
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