https://www.weweweb.net/wiki/index.php?action=history&feed=atom&title=LinuxDailupLinuxDailup - Revision history2026-05-16T18:23:47ZRevision history for this page on the wikiMediaWiki 1.35.5https://www.weweweb.net/wiki/index.php?title=LinuxDailup&diff=87&oldid=prevWilly: Created page with "Add a network interface (Private IP) ifconfig eth0:0 netmask 255.255.255.0 192.168.10.50 route add -host 192.168.10.50 dev eth0:0 Add ipchains of masq ipchains -A forwar..."2022-01-27T04:02:23Z<p>Created page with "Add a network interface (Private IP) ifconfig eth0:0 netmask 255.255.255.0 192.168.10.50 route add -host 192.168.10.50 dev eth0:0 Add ipchains of masq ipchains -A forwar..."</p>
<p><b>New page</b></p><div>Add a network interface (Private IP)<br />
<br />
ifconfig eth0:0 netmask 255.255.255.0 192.168.10.50<br />
route add -host 192.168.10.50 dev eth0:0<br />
<br />
Add ipchains of masq<br />
<br />
ipchains -A forward -s 192.168.10.0/24 -j MASQ<br />
<br />
If you are using iptables (which is used to replace ipchains in the new Linux system), you don't need to create the interface eth0:0. Use the follow iptables rules:<br />
<br />
iptables --flush<br />
iptables --table nat --flush<br />
iptables --delete-chain<br />
iptables --table nat --delete-chain<br />
iptables --table nat --append POSTROUTING --out-interface eth0 -j MASQUERADE<br />
iptables --append FORWARD --in-interface ppp0 -j ACCEPT<br />
echo 1 > /proc/sys/net/ipv4/ip_forward<br />
<br />
In /etc/inittab, activate the serial line<br />
<br />
S0:2345:respawn /sbin/mgetty ttyS0<br />
S1:2345:respawn /sbin/mgetty ttyS1<br />
<br />
Start from Fedora 9, the Upstart is used to replace SysVInit, so you can't put it in inittab. In /etc/event.d, create a file ttyS0 with the following content:<br />
<br />
# ttyS0 - getty<br />
#<br />
# This service maintains a getty on ttyS0 from the point the system is<br />
# started until it is shut down again.<br />
<br />
start on stopped rc2<br />
start on stopped rc3<br />
start on stopped rc4<br />
start on stopped rc5<br />
start on started prefdm<br />
<br />
stop on runlevel 0<br />
stop on runlevel 1<br />
stop on runlevel 6<br />
<br />
respawn<br />
exec /sbin/mgetty -D ttyS0<br />
<br />
To start the newly created service, use the command:<br />
<br />
initctl start ttyS0<br />
<br />
In /etc/ppp/options, add the following lines:<br />
<br />
syncmap 0<br />
netmask 255.255.255.0<br />
proxyarp<br />
lock<br />
crtscts<br />
modem<br />
ms-dns 202.14.67.4<br />
ms-dns 202.14.64.14<br />
<br />
In /etc/ppp, add file options.ttyS0<br />
<br />
login<br />
require-pap<br />
192.168.10.51:192.168.10.56<br />
<br />
In /etc/ppp, add file options.ttyS1<br />
<br />
login<br />
require-pap<br />
192.168.10.52:192.168.10.57<br />
<br />
In /etc/ppp/pap-secrets<br />
<br />
#client server secret IP addresses<br />
user1 * "" *<br />
user2 * "" *<br />
<br />
In /etc/ppp/chap-secrets, copy the contents of pap-secrets<br />
<br />
Set sticky for /usr/sbin/pppd:-<br />
<br />
chmod u+s /usr/sbin/pppd<br />
<br />
In /etc/bashrc, add a line<br />
<br />
alias ppp="exec /usr/sbin/pppd -detach"<br />
<br />
To reset the inittab file<br />
<br />
init q<br />
<br />
To connect to modem use the program<br />
<br />
minicom<br />
<br />
To initialize the minicom, use the "-s" option<br />
----<br />
Goto [[Linux]]</div>Willy