Moxa W321-LX [50/80] Setting up a machine for incoming ppp connections

Moxa W341-LX [50/80] Setting up a machine for incoming ppp connections
W321/341 Linux
-11
(The folder ifconfig may be located elsewhere, depending on your distribution.) You should be able to see all
the network interfaces that are UP. ppp0 should be one of them, and you should recognize the first IP address
as your own, and the “P-t-P address” (or point-to-point address) the address of your server. Here’s what it
looks like on one machine:
lo
Link encap Local Loopback
inet addr 127.0.0.1
Bcast 127.255.255.255 Mask 255.0.0.0
UP LOOPBACK RUNNING
MTU 2000 Metric 1
RX packets 0 errors 0 dropped 0 overrun 0
ppp0
Link encap Point
-to-Point Protocol
inet addr 192.76.32.3
P-t-P 129.67.1.165 Mask 255.255.255.0
UP POINTOPOINT RUNNING
MTU 1500 Metric 1
RX packets 33 errors 0 dropped 0 overrun 0
TX packets 42 errors 0 dropped 0 overrun 0
Now, type:
ping z.z.z.z
where z.z.z.z is the address of your name server. This should work. Here’s what the response could look like:
waddington:~$p ping 129.67.1.165
PING 129.67.1.165 (129.67.1.165): 56 data bytes
64 bytes from 129.67.1.165: icmp_seq=0 ttl=225 time=268 ms
64 bytes from 129.67.1.165: icmp_seq=1 ttl=225 time=247 ms
64 bytes from 129.67.1.165: icmp_seq=2 ttl=225 time=266 ms
^C
--- 129.67.1.165 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 247/260/268 ms
waddington:~$
Try typing:
netstat –nr
This should show three routes, something like this:
Kernel routing table
Destination iface
Gateway
Genmask
Flags
Ref
Use
129.67.1.165 ppp0
0.0.0.0
255.255.255.255
UH
0
6
127.0.0.0
0.0.0.0
255.0.0.0
U
0
0 lo
0.0.0.0 ppp0
129.67.1.165
0.0.0.0
UG
0
6298
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 star (*) lets everyone login. The second star (*) lets every host connect. The pair of double quotation
marks (““) is to use the file /etc/passwd to check the password. The last star (*) is to let any IP connect.

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