Moxa ioPAC 5542-C-T — настройка PPP соединений и маршрутизации для RTU [37/52]
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Moxa ioPAC 5542-C-T — настройка PPP соединений и маршрутизации для RTU [37/52]

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Moxa 85M-1602-T [37/52] Setting up a machine for incoming ppp connections
ioPAC RTU Software RTU Communications
4-12
netstat –nr
This should show three routes, something like this:
Kernel routing table
Destination iface
Gateway
Genmask
Flags
Metric
Ref
129.67.1.165 ppp0
0.0.0.0
255.255.255.255
UH
0
0
127.0.0.0
0.0.0.0
255.0.0.0
U
0
0
0.0.0.0 ppp0
129.6
7.1.165
0.0.0.0
UG
0
0
If your output looks similar but doesn’t have the destination 0.0.0.0 line (which refers to the default route used
for connections), you may have run pppd without the defaultroute option. At this point you can try using
Telnet, FTP, or finger, bearing in mind that you’ll have to use numeric IP addresses unless you’ve set up
/etc/resolv.conf correctly.
Setting up a Machine for Incoming PPP Connections
This first example applies to using a modem, and requiring authorization with a username and password.
pppd/dev/ttyM0 115200 crtscts modem 192.168.16.1:192.168.16.2 login auth
You should also add the following line to the file /etc/ppp/pap-secrets:
* * ““ *
The first asterisk (*) lets everyone log in. The second asterisk (*) lets every host connect. The pair of double
quotation marks (““) is to use the /etc/passwd file to check the password. The last asterisk (*) is to let any
IP address connect.
The following example does not check the username and password:
pppd/dev/ttyM0 115200 crtscts modem 192.168.16.1:192.168.16.2
PPPoE
1. Connect the ioPAC RTU controller LAN port to an ADSL modem with a cross-over cable, hub, or switch.
2. Log in to the ioPAC RTU controller as the root user.
3. Edit the file /etc/ppp/chap-secrets and add the following:
“username@hinet.net”*“password”*
# Secrets for authentication using CHAP
# client server secret IP addresses
# PPPOE example, if you want to use it, you need to unmark it and modify it
“username@hinet.net” * “password” *
# following is INBOUND for everyone
* * “” *
“username@hinet.net” is the username obtained from the ISP to log in to the ISP account. “password”
is the corresponding password for the account.
4. Edit the file /etc/ppp/pap-secrets and add the following:
“username@hinet.net”*“password”*
# INBOUND connections
# Every regular user can use PPP and has to use passwords from /etc/passwd
* * “” *
# PPPOE user example, if you want to use it, you need to unmark it and modify it
“username@hinet.net” * “password” *

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