[Linux] => [ネットワーク設定]

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./adsl-setup にて設定ファイルを作成します。対話式ですので、それぞれの
Roaring Penguin Softwareよりソースまたはパッケージを取得して再インストールしてください。

Welcome to the ADSL client setup. First, I will run some checks on
your system to make sure the PPPoE client is installed properly...

The following DSL config was found on your system:

Device: Name:
/sbin/adsl-setup: line 99: /etc/sysconfig/network-scripts/ifcfg-ppp0: No such file or directory
ppp0 DSLppp0

Please enter the device if you want to configure the present DSL config
(default ppp0) or enter 'n' if you want to create a new one:


Enter your Login Name: ****@atson.net <--- ユーザ名


Enter the Ethernet interface connected to the ADSL modem
For Solaris, this is likely to be something like /dev/hme0.
For Linux, it will be ethX, where 'X' is a number.
(default eth0): <--使用するインターフェース

Do you want the link to come up on demand, or stay up continuously?
If you want it to come up on demand, enter the idle time in seconds
after which the link should be dropped. If you want the link to
stay up permanently, enter 'no' (two letters, lower-case.)
NOTE: Demand-activated links do not interact well with dynamic IP
addresses. You may have some problems with demand-activated links.
Enter the demand value (default no): <-- 通信が一定時間なかった場合に、接続を切断するまでの秒数。常時接続の場合は 'no'


Please enter the IP address of your ISP's primary DNS server.
If your ISP claims that 'the server will provide dynamic DNS addresses',
enter 'server' (all lower-case) here.
If you just press enter, I will assume you know what you are
doing and not modify your DNS setup.
Enter the DNS information here: <--DNS情報を取得するかどうか。


Please enter your Password: <-- パスワード
Please re-enter your Password: <-- パスワードを再入力


Please enter 'yes' (two letters, lower-case.) if you want to allow
normal user to start or stop DSL connection (default yes): no <-- 一般ユーザが使用できるかどうか。


Please choose the firewall rules to use. Note that these rules are
very basic. You are strongly encouraged to use a more sophisticated
firewall setup; however, these will provide basic security. If you
are running any servers on your machine, you must choose 'NONE' and
set up firewalling yourself. Otherwise, the firewall rules will deny
access to all standard servers like Web, e-mail, ftp, etc. If you
are using SSH, the rules will block outgoing SSH connections which
allocate a privileged source port.

The firewall choices are:
0 - NONE: This script will not set any firewall rules. You are responsible
for ensuring the security of your machine. You are STRONGLY
recommended to use some kind of firewall rules.
1 - STANDALONE: Appropriate for a basic stand-alone web-surfing workstation
2 - MASQUERADE: Appropriate for a machine acting as an Internet gateway
for a LAN
Choose a type of firewall (0-2): 0 <-- 自分でiptablesの設定をする場合には '0'

Start this connection at boot time

Do you want to start this connection at boot time?
Please enter no or yes (default no):yes <-- 起動時に接続をするかどうか。

** Summary of what you entered **

Ethernet Interface: eth0
User name: ******@atson.net
Activate-on-demand: No
DNS: Do not adjust
Firewalling: NONE
User Control: no
Accept these settings and adjust configuration files (y/n)? y
Adjusting /etc/sysconfig/network-scripts/ifcfg-ppp0
Adjusting /etc/ppp/chap-secrets and /etc/ppp/pap-secrets
(But first backing it up to /etc/ppp/chap-secrets.bak)
(But first backing it up to /etc/ppp/pap-secrets.bak)

Congratulations, it should be all set up!

Type '/sbin/ifup ppp0' to bring up your xDSL link and '/sbin/ifdown ppp0'
to bring it down.
Type '/sbin/adsl-status /etc/sysconfig/network-scripts/ifcfg-ppp0'
to see the link status.

設定が完了しましたら、ファイルが/etc/sysconfig/network-scripts/ifcfg-ppp0 に作成されているかと
思います。ただしRedHat 9.0 などに付属しているRPMパッケージなどではこのままですと接続がすぐに切断されて

PPPOE_TIMEOUT=20 となっているところを
PPPOE_TIMEOUT=0 に修正するかコメントアウトしてください。

パッケージによっては /etc/ppp/pppoe.conf に設定ファイルが作成されている場合もあります。こちらの場合には

設定が完了したら、adsl-start 設定ファイルでうまく起動するかと思います。


ifup ppp0

netstat時にでるwarning, got duplicate tcp line.
Bad TCP checksum
/etc/sysconfig/network - ホスト名やゲートウェイの設定
/etc/resolv.conf - DNSサーバの設定