Intenté configurar el servidor Dnsmasq y OpenVPN en mi enrutador DD-WRT.
Mi objetivo es conectarme a mi enrutador dd-wrt (v24-sp2 (25/03/13) mega) a través de openvpn y:
- utilizar mis recursos locales,
- diríjase a ellos usando los nombres DNS que ingresé en la configuración de dnsmasq
- encaminar todo mi tráfico de Internet a través de casa.
Hice algunas configuraciones del servidor OpenVPN y dnsmasq y ahora la opción uno está funcionando.
Pero no tengo idea de cómo hacer que funcionen las opciones dos y tres. ¿Puede alguien ayudarme?
Configuración del cliente (OpenVPN v2.3.4):
client
dev tun
proto udp
remote some.server.net 11193
redirect-gateway
cipher AES-128-CBC
auth MD5
ca ca.crt
cert client.crt
key client.key
nobind
comp-lzo
persist-key
persist-tun
verb 3
float
#resolv-retry infinite
Configuración del servidor OpenVPN (usé el modo GUI):
Comandos de configuración del firewall en el enrutador:
iptables -I INPUT 1 -p udp --dport 11193 -j ACCEPT
iptables -I FORWARD 1 --source 192.168.144.128/25 -j ACCEPT
iptables -t nat -A POSTROUTING -s 192.168.144.128/25 -o vlan2 -j SNAT --to-source XX.XX.XX.XX
Configuración de DNSMasq:
La configuración de mi área local (si es importante):
Lo que muestra ipconfig /all cuando vpn está conectado (perdón por la consola que no está en inglés):
¿Qué muestra ifconfig -ael comando?
br0 Link encap:Ethernet HWaddr C0:C1:C0:D1:0F:C9
inet addr:192.168.144.126 Bcast:192.168.144.127 Mask:255.255.255.128
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1314791 errors:0 dropped:0 overruns:0 frame:0
TX packets:520087 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1212860286 (1.1 GiB) TX bytes:35424179 (33.7 MiB)
br0:0 Link encap:Ethernet HWaddr C0:C1:C0:D1:0F:C9
inet addr:169.254.255.1 Bcast:169.254.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
eth0 Link encap:Ethernet HWaddr C0:C1:C0:D1:0F:C9
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2132892 errors:0 dropped:0 overruns:0 frame:0
TX packets:1772722 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1428506146 (1.3 GiB) TX bytes:1357054830 (1.2 GiB)
Interrupt:4 Base address:0x2000
eth1 Link encap:Ethernet HWaddr C0:C1:C0:D1:0F:CB
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:20244 errors:0 dropped:0 overruns:0 frame:24589427
TX packets:116648 errors:47 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1931745 (1.8 MiB) TX bytes:41642341 (39.7 MiB)
Interrupt:3 Base address:0x1000
eth2 Link encap:Ethernet HWaddr C0:C1:C0:D1:0F:CC
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:28 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:6 Base address:0x8000
etherip0 Link encap:Ethernet HWaddr 4E:A6:FB:D5:97:10
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
gre0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:1476 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MULTICAST MTU:16436 Metric:1
RX packets:612 errors:0 dropped:0 overruns:0 frame:0
TX packets:612 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:127026 (124.0 KiB) TX bytes:127026 (124.0 KiB)
ppp0 Link encap:Point-to-Point Protocol
inet addr:XX.XX.XX.XX P-t-P:YY.YY.YY.YY Mask:255.255.255.255
UP POINTOPOINT RUNNING MULTICAST MTU:1492 Metric:1
RX packets:328586 errors:0 dropped:0 overruns:0 frame:0
TX packets:564238 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:40074316 (38.2 MiB) TX bytes:674767309 (643.5 MiB)
teql0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
tun2 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:192.168.144.129 P-t-P:192.168.144.129 Mask:255.255.255.128
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:3195 errors:0 dropped:0 overruns:0 frame:0
TX packets:3725 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:251990 (246.0 KiB) TX bytes:2682328 (2.5 MiB)
tunl0 Link encap:UNSPEC HWaddr 00-00-00-00-FF-80-00-00-00-00-00-00-00-00-00-00
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
vlan0 Link encap:Ethernet HWaddr C0:C1:C0:D1:0F:C9
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
vlan1 Link encap:Ethernet HWaddr C0:C1:C0:D1:0F:C9
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1034054 errors:0 dropped:0 overruns:0 frame:0
TX packets:508091 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1174793178 (1.0 GiB) TX bytes:37167391 (35.4 MiB)
vlan2 Link encap:Ethernet HWaddr C0:C1:C0:D1:0F:CA
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1098545 errors:0 dropped:0 overruns:0 frame:0
TX packets:1264631 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:215018185 (205.0 MiB) TX bytes:1319887439 (1.2 GiB)
ACTUALIZACIÓN1:
Usando una pista deAndrás Kornencontró una solución para la opción dos (enlace). Agregué register-dnslíneas pullen la configuración de vpn del cliente y interface=tun2alineé en el campo de opciones de dnsmasq adicionales.
Y agregué la tercera línea a los comandos de configuración del firewall.
Supongo que algunos de mis comandos de iptables son incorrectos porque utilicé interfaces incorrectas (vlanX o ethX).
ACTUALIZACIÓN2:
información adicional
¿Qué muestra route printel comando antes de activar VPN?
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.192.254 192.168.192.147 25
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.56.0 255.255.255.0 On-link 192.168.56.1 276
192.168.56.1 255.255.255.255 On-link 192.168.56.1 276
192.168.56.255 255.255.255.255 On-link 192.168.56.1 276
192.168.192.0 255.255.255.0 On-link 192.168.192.147 281
192.168.192.147 255.255.255.255 On-link 192.168.192.147 281
192.168.192.255 255.255.255.255 On-link 192.168.192.147 281
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.56.1 276
224.0.0.0 240.0.0.0 On-link 192.168.192.147 281
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.56.1 276
255.255.255.255 255.255.255.255 On-link 192.168.192.147 281
===========================================================================
Persistent Routes:
None
Qué muestra route printel comando después de activar la VPN (rutas posiblemente relacionadas con la VPN marcadas con el signo menos)
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.192.254 192.168.192.147 25
0.0.0.0 128.0.0.0 192.168.144.129 192.168.144.131 20 ----
XX.XX.XX.XX 255.255.255.255 192.168.192.254 192.168.192.147 25 ---- To my DD-WRT router (XX.XX.XX.XX = WAN IP)
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
128.0.0.0 128.0.0.0 192.168.144.129 192.168.144.131 20 ----
192.168.56.0 255.255.255.0 On-link 192.168.56.1 276
192.168.56.1 255.255.255.255 On-link 192.168.56.1 276
192.168.56.255 255.255.255.255 On-link 192.168.56.1 276
192.168.144.128 255.255.255.128 On-link 192.168.144.131 276 ----
192.168.144.131 255.255.255.255 On-link 192.168.144.131 276 ---- Probably routes to my VPN subnet
192.168.144.255 255.255.255.255 On-link 192.168.144.131 276 ----
192.168.192.0 255.255.255.0 On-link 192.168.192.147 281
192.168.192.147 255.255.255.255 On-link 192.168.192.147 281
192.168.192.255 255.255.255.255 On-link 192.168.192.147 281
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.56.1 276
224.0.0.0 240.0.0.0 On-link 192.168.192.147 281
224.0.0.0 240.0.0.0 On-link 192.168.144.131 276 ----
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.56.1 276
255.255.255.255 255.255.255.255 On-link 192.168.192.147 281
255.255.255.255 255.255.255.255 On-link 192.168.144.131 276 ----
===========================================================================
Persistent Routes:
None
Lo que muestra tracert google.comel comando:
Tracing route to google.com [188.35.142.42]
over a maximum of 30 hops:
1 10 ms 7 ms 9 ms 192.168.144.129
2 * * * Request timed out.
3 * * * Request timed out.
4 * * * Request timed out.
5 * * * Request timed out.
6 * * * Request timed out.
7 * * * Request timed out.
................................................
Respuesta1
Bien, con respecto a la parte de tu pregunta sobre el acceso a Internet, creo que tu
iptables -t nat -A POSTROUTING -s 192.168.144.128/25 -o vlan2 -j SNAT --to-source XX.XX.XX.XX
Está Mal. vlan2debería ser ppp0(porque ppp0 es su interfaz orientada a Internet).
Una regla más simple como
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
También debería funcionar.
Respuesta2
Andras: ¿Sería vlan2 en mi caso? ¡Gracias!
br0 Link encap:Ethernet HWaddr CC:E1:D5:3A:B2:80
inet addr:192.168.11.1 Bcast:192.168.11.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:424601 errors:0 dropped:21377 overruns:0 frame:0
TX packets:475454 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:70115596 (66.8 MiB) TX bytes:585654624 (558.5 MiB)
br0:0 Link encap:Ethernet HWaddr CC:E1:D5:3A:B2:80
inet addr:169.254.255.1 Bcast:169.254.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
eth0 Link encap:Ethernet HWaddr CC:E1:D5:3A:B2:80
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5196488 errors:0 dropped:0 overruns:0 frame:0
TX packets:848653 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:969250040 (924.3 MiB) TX bytes:639674339 (610.0 MiB)
Interrupt:5
imq0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:1500 Metric:1
RX packets:71971 errors:0 dropped:0 overruns:0 frame:0
TX packets:71958 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:30
RX bytes:58870852 (56.1 MiB) TX bytes:58851352 (56.1 MiB)
imq1 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16000 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:11000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MULTICAST MTU:65536 Metric:1
RX packets:90 errors:0 dropped:0 overruns:0 frame:0
TX packets:90 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8027 (7.8 KiB) TX bytes:8027 (7.8 KiB)
ra0 Link encap:Ethernet HWaddr CC:E1:D5:3A:B2:80
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:10164 errors:0 dropped:0 overruns:0 frame:0
TX packets:10826 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2261013 (2.1 MiB) TX bytes:10971684 (10.4 MiB)
Interrupt:6
tun2 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:192.168.12.1 P-t-P:192.168.12.1 Mask:255.255.255.0
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1400 Metric:1
RX packets:1203 errors:0 dropped:0 overruns:0 frame:0
TX packets:1855 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:84990 (82.9 KiB) TX bytes:1936057 (1.8 MiB)
vlan1 Link encap:Ethernet HWaddr CC:E1:D5:3A:B2:80
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:415650 errors:0 dropped:0 overruns:0 frame:0
TX packets:465320 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:68193995 (65.0 MiB) TX bytes:574645820 (548.0 MiB)
vlan2 Link encap:Ethernet HWaddr CC:E1:D5:3A:B2:80
inet addr:72.196.156.81 Bcast:72.196.159.255 Mask:255.255.248.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4775595 errors:0 dropped:24901 overruns:0 frame:0
TX packets:382762 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:807307551 (769.9 MiB) TX bytes:60986467 (58.1 MiB)