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以下都是在XP操作系统下操作的 + t* b3 l& u1 A: W! Q
1.选择系统自带的拨号软件(尽量不要安装其他的拨号及加速软件)
8 l4 R0 M( c R4 Q; A2.拨号进行连接后,点 "开始" --> "运行" ,在"打开栏"输入cmd,回车,进入DOS窗口; V7 U9 i6 J2 _) T. C: O
3.在光标闪烁处输 ipconfig/all
. w# f- ?9 R3 Z+ x N: p, K4.回车,在 PPP adapter adsl 段落(最后一段落)中找到 DNS serves一行后面的数字为DNS的地址,模式如 202.101.224.*
1 A+ x! ]; Q T2 E) \5.记下此DNS的地址 . M. N& F6 Y: [! L0 b- d& x
6.在光标闪烁处输入 ping -f -l 14** 202.101.224.*
1 H% [; z: i! ? 14** 为你传输给当地DNS 的数据大小 ,取值一般在1450 ---1464 之间
7 o) h8 u8 J4 H6 q8 F0 D( P 202.101.224.* 就是刚才记录下的DNS 地址
6 j. S# {+ f) C [7.如选1457,DNS 为 202.101.224.69 则格式为
( a _5 B) q. p4 W+ c+ L; E) [ping -f -l 1457 202.101.224.69 ! X) \3 N; O, c; E' o
回车
: d. H0 a! R: ]若返回的是
5 W, s; S1 h+ S" O* ?packet needs to be fragmented but DF set .
/ u& ?" T3 Y R表明1457 数据过大,就将1457 改为1456 再试,还不行 改为1455 .... ' ?; M3 a1 R( D8 x' \; b5 S0 ]& c- J* [
直到返回数据为 . ^% T- M: ]) ~; b" w# v
reply from 202.101.224.69:bytes=14** time = 59 ms ttl = 251 9 u+ Y* Q! X8 O8 y
类字样,才说明你输入的数据不会在传输及接受时不会产生碎片
, k% L: S: b+ u7 n& t: g0 w4 \(注意此数据应取能返回reply ***** 的最大值,也就是返回的倒数第4行的末尾有 lost = 0 的字样)
6 \+ e: W6 H3 ^5 H- T' q# Z8.记下此数据,那ADSL 供应商提供给我们的Maxmtu = 14** + 28 0 K C' {* Q7 N' t- Y
如九江的为1452数据 能不产生碎片,那九江电信的ADSL 用户的 Maxmtu = 1 @7 R( |5 a2 P. B* V
1452 + 28 = 1480 ; b" W) ?% I9 O. u% J, A0 C4 q1 z# h
而不是系统默认的 1500 ,和有些优化软件标称的 1492 6 i" a) @; ?$ o: t2 _+ l6 S, C h
新建一记事本,将下面的复制到记事本,将记事本命名为adslrg.txt
& g a; [/ V6 Y4 [& ^[Version]
. S5 R/ G) u% ~4 k2 ^4 Fsignature=$CHICAGO$
; z- z! _# O; J# q8 v- z5 x# G1 N
' S0 F8 @8 H0 |6 C" _1 }[DefaultInstall] , _4 M- J9 Q! k! R
DelReg=Delete_Old_Tweaks ) k1 @" \' F' Q$ {
AddReg=Add_SpeedGuide_Tweaks
( ^& n" Q2 l: C: K" ~' |+ J. C* ^1 h4 u7 ~) Z0 N8 P( F
[Delete_Old_Tweaks]
. {& K. c3 Y7 d' R4 {8 r1 e9 [0 Y ]HKLM,SystemCurrentControlSetServicesVxDMSTCP,DefaultRcvWindow
1 a/ A8 ?- z- u8 B) ]/ A' n2 Z: H2 AHKLM,SystemCurrentControlSetServicesVxDMSTCP,DefaultTTL 5 ?% Z' T4 z7 `1 E1 n
HKLM,SystemCurrentControlSetServicesVxDMSTCP,PMTUDiscovery 1 l% S6 t- y9 u: S: P8 V0 k; R
HKLM,SystemCurrentControlSetServicesVxDMSTCP,PMTUBlackHoleDetect
/ c% ^% g3 S5 n4 ?2 i% D9 L- hHKLM,SystemCurrentControlSetServicesVxDMSTCPParameters,Tcp1323Opts 0 p2 r. F3 @. G
HKLM,SystemCurrentControlSetServicesVxDMSTCP,Tcp1323Opts
' L B* y9 ?2 |0 U' [. l1 b, h3 f& _HKLM,SystemCurrentControlSetServicesVxDMSTCPParameters,SackOpts
" k. w. S7 n1 m! O' q! ?* Z* J3 CHKLM,SystemCurrentControlSetServicesVxDMSTCP,SackOpts
/ A x3 N, Q5 ~% F7 h5 O3 OHKLM,SystemCurrentControlSetServicesVxDMSTCPParameters,MaxDupAcks
# C) E4 ~( ~7 G- Z; S& J7 tHKLM,SystemCurrentControlSetServicesClassNetTrans000,MaxMTU
2 @8 E! x% f2 ^3 @! y }" tHKLM,SystemCurrentControlSetServicesClassNetTrans001,MaxMTU 0 ^, l1 F3 \1 W m8 Y3 b
HKLM,SystemCurrentControlSetServicesClassNetTrans002,MaxMTU 2 K3 q7 A3 p& I! y# X
HKLM,SystemCurrentControlSetServicesClassNetTrans003,MaxMTU P7 M1 s% r4 [$ `& j8 B7 `; r
HKLM,SystemCurrentControlSetServicesClassNetTrans004,MaxMTU " |- J! w2 u) J2 ^, K1 \. D
HKLM,SystemCurrentControlSetServicesClassNetTrans005,MaxMTU ) q( k9 x# b. u1 p
HKLM,SystemCurrentControlSetServicesClassNetTrans006,MaxMTU
! _7 I8 U3 N. N$ m1 wHKLM,SystemCurrentControlSetServicesClassNetTrans007,MaxMTU % M3 `; k$ W0 h2 Q' J! X: g/ E( g
HKLM,SystemCurrentControlSetServicesClassNetTrans008,MaxMTU ! ~, _+ e& n' [9 J8 u% n
HKLM,SystemCurrentControlSetServicesClassNetTrans009,MaxMTU % }% b$ \' i! S% b& h
HKLM,SystemCurrentControlSetServicesICSharingSettingsGeneral,InternetMTU
7 j) |# L0 t3 D) m1 D j# t3 F2 s& [" [* l: f% P8 F
[Add_SpeedGuide_Tweaks]
" v+ T2 Q$ k' YHKLM,SystemCurrentControlSetServicesVxDMSTCP,DefaultRcvWindow,0,"255552"
) p! G8 V7 F" z( X/ c" VHKLM,SystemCurrentControlSetServicesVxDMSTCP,DefaultTTL,0,"64"
) C! k: B; {5 w4 E3 s8 y! NHKLM,SystemCurrentControlSetServicesVxDMSTCP,PMTUDiscovery,0,"1" - J$ E; B% s! M! C4 j2 A# @& @& Q
HKLM,SystemCurrentControlSetServicesVxDMSTCP,PMTUBlackHoleDetect,0,"0" 7 g. a/ _# C1 ?; ]; y7 U8 D# e4 e
HKLM,SystemCurrentControlSetServicesVxDMSTCP,Tcp1323Opts,0,"1" + m u, _9 c5 J3 @. M; E2 B
HKLM,SystemCurrentControlSetServicesVxDMSTCP,SackOpts,0,"1" ; Q5 |& P+ V% i4 i z
HKLM,SystemCurrentControlSetServicesVxDMSTCPParameters,MaxDupAcks,0x10001,"3" * f6 r& |: E3 K6 b% D V& B
HKLM,SystemCurrentControlSetServicesClassNetTrans000,MaxMTU,0,"1480" , j2 ], o7 p# z4 w$ P
HKLM,SystemCurrentControlSetServicesClassNetTrans001,MaxMTU,0,"1480" + n3 G( C, K2 C. g9 _* V% F* ?1 q, ]
HKLM,SystemCurrentControlSetServicesClassNetTrans002,MaxMTU,0,"1480" , G+ `7 |0 q. d$ O! f4 J# ?9 s) Y
HKLM,SystemCurrentControlSetServicesClassNetTrans003,MaxMTU,0,"1480" 2 v# f) {& z9 Z3 [ n- f( b# g$ Y
HKLM,SystemCurrentControlSetServicesClassNetTrans004,MaxMTU,0,"1480"
& O: b: e5 l i1 n# [0 s4 GHKLM,SystemCurrentControlSetServicesClassNetTrans005,MaxMTU,0,"1480"
, j. R) P7 N5 y! V" h9 o8 MHKLM,SystemCurrentControlSetServicesClassNetTrans006,MaxMTU,0,"1480" $ \; W0 R3 n: ~8 U% ~4 \. @
HKLM,SystemCurrentControlSetServicesClassNetTrans007,MaxMTU,0,"1480"
5 A, W0 z6 S7 q( [HKLM,SystemCurrentControlSetServicesClassNetTrans008,MaxMTU,0,"1480" 3 i$ ]: B! F1 C |" g
HKLM,SystemCurrentControlSetServicesClassNetTrans009,MaxMTU,0,"1480"
( c, i9 @5 A0 Z; y) B# E
' |( X. \9 G# J/ M- U% E U5 M# U, {5 i& ]# t) Q
7 s; W0 v: c4 O& m. r/ E0 Z2 m
其中在记事本中的1480 改为你测出的数值
x: b+ L: u$ w$ i3 F: A% o保存后在记事本 文件菜单栏选择:另存为... 命名为adslrg.inf ( h, @" O# z K: Z& p5 L% d
用右键点击adslrg.inf 选择安装,
$ @% d' j3 [, Q) X重新启动你的电脑 |
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发表于 2007-3-28 01:25:37