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+-------- インターネットかな --------+
| |
+----------------+ |
| 得体の知れない | |
|マンションルータ| |
+----------------+ |
| |
|172.30.1.2 |1.2.3.4
+----------------+ +----------------+
| | PPP over TCP | |
| NetBSD-1.6 |===================>| FreeBSD-4.6.2R |
| | 6669/tcp | |
+----------------+ +----------------+
192.168.19.19 192.168.19.78
|
ppp-out:
set escape 0xff
set device 1.2.3.4:6669/tcp
set dial
set timeout 0
set log phase chat
set ifaddr 192.168.19.19 192.168.19.78 255.255.255.255
set authname "pppuser"
set authkey "ppppass1"
|
ppp-in:
set log phase chat
set timeout 300
set ifaddr 192.168.19.78 192.168.19.19 255.255.255.255
enable CHAP
|
pppuser ppppass1 |
ppp-in 6669/tcp # for PPP over TCP |
ppp-in stream tcp nowait root /usr/sbin/ppp ppp -direct ppp-in |
netbsd# /usr/pkg/sbin/ppp -ddial ppp-out |
netbsd# /sbin/ifconfig tun0
tun0: flags=51<UP,POINTOPOINT,RUNNING> mtu 1454
inet 192.168.19.19 -> 192.168.19.78 netmask 0xffffffff
netbsd# /sbin/ping 192.168.19.78
PING server (192.168.19.78): 56 data bytes
64 bytes from 192.168.19.78: icmp_seq=0 ttl=64 time=305.263 ms
64 bytes from 192.168.19.78: icmp_seq=1 ttl=64 time=73.652 ms
64 bytes from 192.168.19.78: icmp_seq=2 ttl=64 time=61.642 ms
^C
----server PING Statistics----
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 61.642/146.852/305.263/137.319 ms
|
freebsd# /sbin/ifconfig tun1
tun1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
inet6 fe80::212:34ff:fe56:789a%tun1 prefixlen 64 scopeid 0x9
inet 192.168.19.78 -> 192.168.19.19 netmask 0xffffffff
Opened by PID 12345
freebsd# /sbin/ping 192.168.19.19
PING client (192.168.19.19): 56 data bytes
64 bytes from 192.168.19.19: icmp_seq=0 ttl=64 time=63.896 ms
64 bytes from 192.168.19.19: icmp_seq=1 ttl=64 time=60.009 ms
64 bytes from 192.168.19.19: icmp_seq=2 ttl=64 time=60.063 ms
^C
----client PING Statistics----
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 60.009/61.323/63.896/1.820 ms
|
ただし、これだけだと、使っていない間はデータが流れないため、5分経つと 切られてしまいます。(…というのはうちの場合ですが。)
* * * * * /sbin/ping -c 1 192.168.19.78 > /dev/null 2>&1 |
|
|
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| usu@usupi.org | Last modified : Thu Mar 27 21:59:50 2003 |