MDK10的上网配置（图解）及网络优化（请不要追贴,有问题另开贴）

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（2）如果你想在你的机器中同时满足多种上网方式，请先配置好你的“局域网上网方式”，过程如（1）。下面开始配置你的“ADSL”上网方式。（注意：如果仅仅“ADSL”上网，请直接从（2）开始）
   （a）到控制中心里“硬件”中选择"以太网卡"，然后运行“运行配置工具”。（如图－11）

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（如图－12）

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（如图－13）

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（如图－14）配置DNS，如果你不知道请与你的供应商联系！

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（如图－15）最好不要开机启动。随你自己啦！

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（如图－16）好配置成功！

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（如图－17）修改防火墙设置，选择ppp＋。

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（4）好现在你应该能够上网啦！注意：当你是选择多样化的上网方式，每次请切换到相应的防火墙设置。如果此步骤后你仍然无法上网，请看/etc/ppp目录下的所有文本文件。我的参照如下：chap-secrets文件：
# Secrets for authentication using CHAP
# client  server  secret  IP addresses

"XXXXXXX"        *        "XXXXXXXXX"
pap-secrets文件：

# Secrets for authentication using PAP
# client  server  secret  IP addresses

"XXXXXXX"        *        "XXXXXXXXX"

pppoe.conf文件：

#***********************************************************************
#
# pppoe.conf
#
# Configuration file for rp-pppoe.  Edit as appropriate and install in
# /etc/ppp/pppoe.conf
#
# NOTE: This file is used by the adsl-start, adsl-stop, adsl-connect and
#       adsl-status shell scripts.  It is *not* used in any way by the
#       "pppoe" executable.
#
# Copyright (C) 2000 Roaring Penguin Software Inc.
#
# This file may be distributed under the terms of the GNU General
# Public License.
#
# LIC: GPL
# $Id: pppoe.conf,v 1.10 2002/04/09 17:28:38 dfs Exp $
#***********************************************************************

# When you configure a variable, DO NOT leave spaces around the "=" sign.

# Ethernet card connected to ADSL modem
ETH=eth0

# ADSL user name.  You may have to supply "@provider.com"  Sympatico
# users in Canada do need to include "@sympatico.ca"
# Sympatico uses PAP authentication.  Make sure /etc/ppp/pap-secrets
# contains the right username/password combination.
# For Magma, use xxyyzz@magma.ca
USER='XXXXXXXXXX'

# Bring link up on demand?  Default is to leave link up all the time.
# If you want the link to come up on demand, set DEMAND to a number indicating
# the idle time after which the link is brought down.
DEMAND=no
#DEMAND=300

# DNS type: SERVER=obtain from server; SPECIFY=use DNS1 and DNS2;
# NOCHANGE=do not adjust.
DNSTYPE=SPECIFY

# Obtain DNS server addresses from the peer (recent versions of pppd only)
# In old config files, this used to be called USEPEERDNS.  Changed to
# PEERDNS for better Red Hat compatibility
PEERDNS=no

DNS1=222.154.100.100
DNS2=222.226.228.228

# Make the PPPoE connection your default route.  Set to
# DEFAULTROUTE=no if you don't want this.
DEFAULTROUTE=yes

### ONLY TOUCH THE FOLLOWING SETTINGS IF YOU'RE AN EXPERT

# How long adsl-start waits for a new PPP interface to appear before
# concluding something went wrong.  If you use 0, then adsl-start
# exits immediately with a successful status and does not wait for the
# link to come up.  Time is in seconds.
#
# WARNING WARNING WARNING:
#
# If you are using rp-pppoe on a physically-inaccessible host, set
# CONNECT_TIMEOUT to 0.  This makes SURE that the machine keeps trying
# to connect forever after adsl-start is called.  Otherwise, it will
# give out after CONNECT_TIMEOUT seconds and will not attempt to
# connect again, making it impossible to reach.
CONNECT_TIMEOUT=30

# How often in seconds adsl-start polls to check if link is up
CONNECT_POLL=2

# Specific desired AC Name
ACNAME=

# Specific desired service name
SERVICENAME=

# Character to echo at each poll.  Use PING="" if you don't want
# anything echoed
PING="."

# File where the adsl-connect script writes its process-ID.
# Three files are actually used:
#   $PIDFILE       contains PID of adsl-connect script
#   $PIDFILE.pppoe contains PID of pppoe process
#   $PIDFILE.pppd  contains PID of pppd process
CF_BASE=`basename $CONFIG`
PIDFILE="/var/run/$CF_BASE-adsl.pid"

# Do you want to use synchronous PPP?  "yes" or "no".  "yes" is much
# easier on CPU usage, but may not work for you.  It is safer to use
# "no", but you may want to experiment with "yes".  "yes" is generally
# safe on Linux machines with the n_hdlc line discipline; unsafe on others.
SYNCHRONOUS=no

# Do you want to clamp the MSS?  Here's how to decide:
# - If you have only a SINGLE computer connected to the ADSL modem, choose
#   "no".
# - If you have a computer acting as a gateway for a LAN, choose "1412".
#   The setting of 1412 is safe for either setup, but uses slightly more
#   CPU power.
CLAMPMSS=1412
#CLAMPMSS=no

# LCP echo interval and failure count.
LCP_INTERVAL=20
LCP_FAILURE=3

# PPPOE_TIMEOUT should be about 4*LCP_INTERVAL
PPPOE_TIMEOUT=80

# Firewalling: One of NONE, STANDALONE or MASQUERADE
FIREWALL=MASQUERADE

# Linux kernel-mode plugin for pppd.  If you want to try the kernel-mode
# plugin, use LINUX_PLUGIN=/etc/ppp/plugins/rp-pppoe.so
LINUX_PLUGIN=

# Any extra arguments to pass to pppoe.  Normally, use a blank string
# like this:
PPPOE_EXTRA=""

# Rumour has it that "Citizen's Communications" with a 3Com
# HomeConnect ADSL Modem DualLink requires these extra options:
# PPPOE_EXTRA="-f 3c12:3c13 -S ISP"

# Any extra arguments to pass to pppd.  Normally, use a blank string
# like this:
PPPD_EXTRA=""


########## DON'T CHANGE BELOW UNLESS YOU KNOW WHAT YOU ARE DOING
# If you wish to COMPLETELY overrride the pppd invocation:
# Example:
# OVERRIDE_PPPD_COMMAND="pppd call dsl"

# If you want adsl-connect to exit when connection drops:
# RETRY_ON_FAILURE=no

resolv.conf文件： /etc/目录下的resolv.conf文件：

nameserver 222.105.128.100
nameserver 222.123.128.128

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此时你会发现上网时很难连上，很容易掉线，地址解析很慢，联网时启动其他软件出现反应速度极慢，等等情况！我们下一步网络优化将有彻底的改进和提高。