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以下都是在XP操作系统下操作的 ) G2 l/ p8 H2 a* J: [
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 Y
2.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; 4 K! \" X4 e8 \0 f3 L$ x L" b
3.在光标闪烁处输 ipconfig/all ! g% C! n% ]3 m4 j+ z
4.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.*
! T- U, }) D& C V+ B4 l5.记下此DNS的地址
9 N& _8 Z; c( T8 R: B6.在光标闪烁处输入 ping -f -l 14** 202.101.224.* 4 r/ B1 Z4 T( M( F" Q; F: V1 P8 C
14** 为你传输给当地DNS 的数据大小 ,取值一般在1450 ---1464 之间
* S* v" @1 d- }" }7 r0 w; u% W 202.101.224.* 就是刚才记录下的DNS 地址
5 H& D3 v, R5 `9 O7.如选1457,DNS 为 202.101.224.69 则格式为
6 ?% \! }; P0 q7 \( yping -f -l 1457 202.101.224.69 6 J3 A& r( c' g1 G! ^& i2 T3 Q* v2 c
回车
0 d# h+ C6 }; m6 W' c若返回的是 / Q f3 V, F! x, Z. }
packet needs to be fragmented but DF set .
" `% R7 k/ V% X5 {表明1457 数据过大,就将1457 改为1456 再试,还不行 改为1455 ....
. o9 }2 _/ \) S5 _ h/ K直到返回数据为
, G& k/ ~! ^+ n5 P3 ~+ {reply from 202.101.224.69:bytes=14** time = 59 ms ttl = 251
9 H [! v- L |5 T$ S2 \3 g5 K+ `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 . |; g3 C% \: l
(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)
: t Y( y* P0 q8.记下此数据,那ADSL 供应商提供给我们的Maxmtu = 14** + 28 * `! G. y) P9 w J
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 = / d9 [! F4 C: p8 _3 R- j( `
1452 + 28 = 1480 9 p7 Y# u7 t' S
而不是系统默认的 1500 ,和有些优化软件标称的 1492
* l2 t6 t0 r3 B3 Y0 L% o" {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 ( K, Z* ~4 c+ s8 Y0 S
[Version]
5 M" q3 a9 Y9 c- i0 jsignature=$CHICAGO$ ! [" i6 W9 r4 h+ f8 ~: i0 a
( |9 x8 M+ _# @! b7 {
[DefaultInstall] 9 ^3 P8 J* t3 y. c9 ~5 d
DelReg=Delete_Old_Tweaks # G8 C q( D# y9 A# E- X% C2 G
AddReg=Add_SpeedGuide_Tweaks . J% F' q3 e" F, p+ R, e
; t2 h4 U5 {9 ^- J2 r/ w[Delete_Old_Tweaks]
& @; K0 ?4 H0 \9 V) FHKLM,SystemCurrentControlSetServicesVxDMSTCP,DefaultRcvWindow ! O+ u9 R3 s" c- G% Q2 D2 |
HKLM,SystemCurrentControlSetServicesVxDMSTCP,DefaultTTL ' V7 M" ?8 M4 d0 |& h2 H% _
HKLM,SystemCurrentControlSetServicesVxDMSTCP,PMTUDiscovery 1 G9 R0 i5 u0 Q/ }5 A
HKLM,SystemCurrentControlSetServicesVxDMSTCP,PMTUBlackHoleDetect ( j5 k ^+ Y" r
HKLM,SystemCurrentControlSetServicesVxDMSTCPParameters,Tcp1323Opts $ C0 k$ o `2 ?' P6 u2 |9 a
HKLM,SystemCurrentControlSetServicesVxDMSTCP,Tcp1323Opts Y/ h% X$ B. E" v; O" k
HKLM,SystemCurrentControlSetServicesVxDMSTCPParameters,SackOpts + X0 G y, R. ~& _3 ~8 r9 ]
HKLM,SystemCurrentControlSetServicesVxDMSTCP,SackOpts
! _+ ^( X7 J4 [, u. V6 n8 c! Q. nHKLM,SystemCurrentControlSetServicesVxDMSTCPParameters,MaxDupAcks
; S3 }; H- q6 K: k8 PHKLM,SystemCurrentControlSetServicesClassNetTrans000,MaxMTU 2 o( t7 I2 v0 k
HKLM,SystemCurrentControlSetServicesClassNetTrans001,MaxMTU 5 r9 w# l" o/ N8 g/ r# ]8 N
HKLM,SystemCurrentControlSetServicesClassNetTrans002,MaxMTU
/ q- w( o* T; T2 KHKLM,SystemCurrentControlSetServicesClassNetTrans003,MaxMTU 0 M4 ?7 J8 _4 ]9 F& e/ n: ?
HKLM,SystemCurrentControlSetServicesClassNetTrans004,MaxMTU
# }& |8 t4 k! @$ _" ~HKLM,SystemCurrentControlSetServicesClassNetTrans005,MaxMTU
# C3 V! x& |9 N) n2 ]: e% ZHKLM,SystemCurrentControlSetServicesClassNetTrans006,MaxMTU
# {, T( F. U% Z4 k0 LHKLM,SystemCurrentControlSetServicesClassNetTrans007,MaxMTU , r9 u, f; f( [1 @
HKLM,SystemCurrentControlSetServicesClassNetTrans008,MaxMTU 5 E) ~9 ?9 O0 l3 R2 O- F
HKLM,SystemCurrentControlSetServicesClassNetTrans009,MaxMTU
4 z6 p/ {0 `$ H$ XHKLM,SystemCurrentControlSetServicesICSharingSettingsGeneral,InternetMTU * F4 d' [7 ^) c- E5 M
1 r( f5 u* X8 ~$ K- v2 _[Add_SpeedGuide_Tweaks] 0 @# u v7 Y# c0 }* {. f
HKLM,SystemCurrentControlSetServicesVxDMSTCP,DefaultRcvWindow,0,"255552"
2 ?0 h5 Z& d4 x% m- f9 nHKLM,SystemCurrentControlSetServicesVxDMSTCP,DefaultTTL,0,"64"
' z! K8 l2 r8 z9 pHKLM,SystemCurrentControlSetServicesVxDMSTCP,PMTUDiscovery,0,"1"
7 K6 f& r% c6 XHKLM,SystemCurrentControlSetServicesVxDMSTCP,PMTUBlackHoleDetect,0,"0" 0 |; C; J) u7 d# B" K) y& }( N
HKLM,SystemCurrentControlSetServicesVxDMSTCP,Tcp1323Opts,0,"1" / ], a/ l# E" F' I3 r7 R* x
HKLM,SystemCurrentControlSetServicesVxDMSTCP,SackOpts,0,"1" # W; d+ j+ h6 L! W8 u m4 }9 k+ N
HKLM,SystemCurrentControlSetServicesVxDMSTCPParameters,MaxDupAcks,0x10001,"3"
7 y q, W# x5 z6 Q1 a$ U ^HKLM,SystemCurrentControlSetServicesClassNetTrans000,MaxMTU,0,"1480" 9 h! O7 F8 }) [# C" [! V6 J
HKLM,SystemCurrentControlSetServicesClassNetTrans001,MaxMTU,0,"1480" $ ~, L# ~% U8 c# d2 k8 T
HKLM,SystemCurrentControlSetServicesClassNetTrans002,MaxMTU,0,"1480" / o* Y2 b/ L# E) `& Z
HKLM,SystemCurrentControlSetServicesClassNetTrans003,MaxMTU,0,"1480"
9 v! L; s/ @* a! D; ZHKLM,SystemCurrentControlSetServicesClassNetTrans004,MaxMTU,0,"1480"
7 o. T0 V5 |4 T8 @0 M' rHKLM,SystemCurrentControlSetServicesClassNetTrans005,MaxMTU,0,"1480"
5 I' z2 ?# y! y7 BHKLM,SystemCurrentControlSetServicesClassNetTrans006,MaxMTU,0,"1480"
, }& D" }8 s* _6 MHKLM,SystemCurrentControlSetServicesClassNetTrans007,MaxMTU,0,"1480"
3 n4 J A) Q* u+ THKLM,SystemCurrentControlSetServicesClassNetTrans008,MaxMTU,0,"1480" 9 l3 o4 ]) t* N0 |' k: \+ h
HKLM,SystemCurrentControlSetServicesClassNetTrans009,MaxMTU,0,"1480"
4 i1 G D+ w2 E2 J1 G$ P
6 r% j8 A p* A, X) C( K9 K Q5 x; z: T1 g |
; f8 k3 j, x& G6 O3 u7 n
其中在记事本中的1480 改为你测出的数值 9 T4 n5 [% K8 o" z/ ^4 C9 {- ~( y
保存后在记事本 文件菜单栏选择:另存为... 命名为adslrg.inf
9 k& n+ h7 i9 x& W, z( ~6 }6 {用右键点击adslrg.inf 选择安装,
* a+ |& }0 d; \* ]重新启动你的电脑 |
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发表于 2007-3-28 01:25:37