Estou em uma máquina Linux (Ubuntu 14.04). Minha rede wifi local é 192.168.1.0/24 , mas minha VPN também 192.168.1.0/24 (VPN ponto a ponto).
ifconfig
enp1s0 Link encap:Ethernet HWaddr 50:7b:9d:98:da:f1
UP BROADCAST MULTICAST MTU:1500 Metric:1
Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)
lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
adr inet6: ::1/128 Scope:Hôte
UP LOOPBACK RUNNING MTU:65536 Metric:1
Packets reçus:806 erreurs:0 :0 overruns:0 frame:0
TX packets:806 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1
Octets reçus:82090 (82.0 KB) Octets transmis:82090 (82.0 KB)
ppp0 Link encap:Protocole Point-à-Point
inet adr:192.168.1.205 P-t-P:192.168.1.204 Masque:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1400 Metric:1
Packets reçus:8 erreurs:0 :0 overruns:0 frame:0
TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:3
Octets reçus:185 (185.0 B) Octets transmis:237 (237.0 B)
wlp2s0 Link encap:Ethernet HWaddr 08:d4:0c:86:c6:76
inet adr:192.168.1.3 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fd24:df6a:bd78:7b00:8109:a0c4:133a:892b/64 Scope:Global
adr inet6: fd24:df6a:bd78:7b00:e534:8609:1c44:f40a/64 Scope:Global
adr inet6: fe80::cdf7:32b8:de5b:ac15/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:6150 erreurs:0 :0 overruns:0 frame:0
TX packets:4583 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:5540235 (5.5 MB) Octets transmis:658638 (658.6 KB)
netstat -anr
Table de routage IP du noyau
Destination Passerelle Genmask Indic MSS Fenêtre irtt Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlp2s0
80.13.172.131 192.168.1.1 255.255.255.255 UGH 0 0 0 wlp2s0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 ppp0
192.168.1.0 192.168.1.204 255.255.255.0 UG 0 0 0 ppp0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlp2s0
192.168.1.204 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
Eu quero redirecionar apenas as solicitações de 192.168.1.39 para a VPN. Como posso fazer isso?
Você precisa remover a rota para o dispositivo ppp0:
192.168.1.0 192.168.1.204 255.255.255.0 UG 0 0 0 ppp0
com o seguinte comando:
sudo route del -net 192.168.1.0/24 gw 192.168.1.204
Então você precisa adicionar a rota para 192.168.1.39
sudo route add -host 192.168.1.39 gw 192.168.1.204 dev ppp0