Respondo entre lineas
Le 20/03/2013 10:19, Antonio Manogué Saiz a écrit : > Iptables está desactivado en esta máquina. > > [root@lorentz ~]# iptables -L > Chain INPUT (policy ACCEPT) > target prot opt source destination > > Chain FORWARD (policy ACCEPT) > target prot opt source destination > > Chain OUTPUT (policy ACCEPT) > target prot opt source destination > > > Solo eth1 > [root@lorentz ~]# route -en > Kernel IP routing table > Destination Gateway Genmask Flags MSS Window irtt Iface > 10.20.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 > 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 > 0.0.0.0 10.20.1.12 0.0.0.0 UG 0 0 0 eth1 > > [root@lorentz ~]# ifconfig -a > eth1 Link encap:Ethernet HWaddr 00:50:56:8A:D0:3C > inet addr:10.20.2.24 Bcast:10.20.255.255 Mask:255.255.0.0 > inet6 addr: fe80::250:56ff:fe8a:d03c/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:385431 errors:0 dropped:0 overruns:0 frame:0 > TX packets:16148 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:37555994 (35.8 MiB) TX bytes:1949316 (1.8 MiB) > > eth3 Link encap:Ethernet HWaddr 00:50:56:8A:45:DE > BROADCAST MULTICAST MTU:1500 Metric:1 > RX packets:6421 errors:0 dropped:0 overruns:0 frame:0 > TX packets:294 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:646119 (630.9 KiB) TX bytes:49064 (47.9 KiB) > > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 > inet6 addr: ::1/128 Scope:Host > UP LOOPBACK RUNNING MTU:16436 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) > > > Después de ifup eth3 > > [root@lorentz ~]# route -en > Kernel IP routing table > Destination Gateway Genmask Flags MSS Window irtt Iface > 10.1.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth3 > 10.20.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 > 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1 > 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth3 > 0.0.0.0 10.1.1.1 0.0.0.0 UG 0 0 0 eth3 Cual es la red 169.254.0.0? Y porqué es accesible desde las dos ethernet y con la misma métrica? > > [root@lorentz ~]# ifconfig -a > eth1 Link encap:Ethernet HWaddr 00:50:56:8A:D0:3C > inet addr:10.20.2.24 Bcast:10.20.255.255 Mask:255.255.0.0 > inet6 addr: fe80::250:56ff:fe8a:d03c/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:388473 errors:0 dropped:0 overruns:0 frame:0 > TX packets:16181 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:37870282 (36.1 MiB) TX bytes:1954442 (1.8 MiB) > > eth3 Link encap:Ethernet HWaddr 00:50:56:8A:45:DE > inet addr:10.1.10.68 Bcast:10.1.255.255 Mask:255.255.0.0 > inet6 addr: fe80::250:56ff:fe8a:45de/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:1558 errors:0 dropped:0 overruns:0 frame:0 > TX packets:128 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:156719 (153.0 KiB) TX bytes:15965 (15.5 KiB) > > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 > inet6 addr: ::1/128 Scope:Host > UP LOOPBACK RUNNING MTU:16436 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) > > > Si que apunta a problemas con GW. Exactamente. Como constatas que se pierde la conexión en eth1? Haces ping desde otra maquina a eth1 o haces ping desde este servidor a una red que es accesible a través de eth1? Que rangos de IP usan estas redes que no son accesibles por eth1? > > > Un saludo, > > Antonio MANOGUE > > > > ----- Mensaje original ----- > | De: "Francesc Guitart" <[email protected]> > | Para: [email protected] > | Enviados: Miércoles, 20 de Marzo 2013 10:01:25 > | Asunto: Re: [CentOS-es] Probelma con 2 tarjeta de red en CentOS6.3 > | Hola, > | -rn > | Le 20/03/2013 09:24, Antonio Manogué Saiz a écrit : > | > > | > Buenos días. > | > > | > Tengo un problema que nunca me había pasado y con el que llevo un > | > tiempo bloqueado. > | > > | > En un sistema (virtualizado con VMWare) CentOS6.3 tengo 1 tarjeta de > | > red funcionando correctamente. Ahora necesito añadirle una segunda > | > tarjeta de red. La tarjeta se instala correctamente según los > | > registros que quedan en messages . La puedo configurar sin problemas > | > desde system-config-network-tui . Cuando la activo con ifup ethX no > | > me da ningún problema ni veo entradas en los logs que indiquen > | > error, pero a los pocos segundos (2-3 seg) se pierde la conexión con > | > la otra IP. Si hago un ifdown ethX y reinicio network vuelve a > | > funcionar todo correctamente. De hw no parece ya que he probado con > | > tarjetas diferentes y el comportamiento es el mismo. Las vmtools > | > están actualizadas. > | > > | > Este es un tail del messages cuando he > | > activado-desactivado-reiniciado y los ficheros de configuración de > | > las tarjetas. La que está operativa es la eth1 y la que no me deja > | > configurar es la eth3 > | > > | > [root@lorentz log]# tail -n 40 messages > | > Mar 20 07:55:11 lorentz ntpd[1765]: Listening on interface #15 eth3, > | > 10.1.10.68#123 Enabled > | > Mar 20 07:55:28 lorentz ntpd[1765]: Deleting interface #14 eth3, > | > fe80::250:56ff:fe8a:45de#123, interface stats: received=0, sent=0, > | > dropped=0, active_time=17 secs > | > Mar 20 07:55:28 lorentz ntpd[1765]: Deleting interface #15 eth3, > | > 10.1.10.68#123, interface stats: received=0, sent=0, dropped=0, > | > active_time=17 secs > | > Mar 20 07:58:48 lorentz ntpd[1765]: synchronized to 10.1.2.54, > | > stratum 3 > | > Mar 20 08:00:22 lorentz ntpd[1765]: time reset -34.361615 s > | > Mar 20 08:09:26 lorentz system-config-network[4381]: chmod 0644 > | > //etc/sysconfig/networking/devices/ifcfg-eth1 > | > Mar 20 08:09:26 lorentz system-config-network[4381]: chmod 0644 > | > //etc/sysconfig/networking/devices/ifcfg-eth3 > | > Mar 20 08:09:46 lorentz ntpd[1765]: synchronized to 10.1.2.54, > | > stratum 3 > | > Mar 20 09:16:39 lorentz system-config-network[4594]: chmod 0644 > | > //etc/sysconfig/networking/devices/ifcfg-eth1 > | > Mar 20 09:16:39 lorentz system-config-network[4594]: chmod 0644 > | > //etc/sysconfig/networking/devices/ifcfg-eth3 > | > Mar 20 09:17:07 lorentz kernel: lo: Disabled Privacy Extensions > | > Mar 20 09:17:07 lorentz kernel: e1000: eth1 NIC Link is Up 1000 Mbps > | > Full Duplex, Flow Control: None > | > Mar 20 09:17:07 lorentz kernel: ADDRCONF(NETDEV_UP): eth1: link is > | > not ready > | > Mar 20 09:17:07 lorentz kernel: ADDRCONF(NETDEV_CHANGE): eth1: link > | > becomes ready > | > Mar 20 09:17:08 lorentz kernel: eth3: intr type 3, mode 0, 2 vectors > | > allocated > | > Mar 20 09:17:08 lorentz kernel: eth3: NIC Link is Up 10000 Mbps > | > Mar 20 09:17:09 lorentz NET[4971]: > | > /etc/sysconfig/network-scripts/ifup-post : updated /etc/resolv.conf > | > Mar 20 09:17:12 lorentz ntpd[1765]: Listening on interface #16 eth3, > | > fe80::250:56ff:fe8a:45de#123 Enabled > | > Mar 20 09:17:12 lorentz ntpd[1765]: Listening on interface #17 eth3, > | > 10.1.10.68#123 Enabled > | > Mar 20 09:17:47 lorentz NET[5040]: > | > /etc/sysconfig/network-scripts/ifdown-post : updated > | > /etc/resolv.conf > | > Mar 20 09:17:49 lorentz ntpd[1765]: Deleting interface #16 eth3, > | > fe80::250:56ff:fe8a:45de#123, interface stats: received=0, sent=0, > | > dropped=0, active_time=37 secs > | > Mar 20 09:17:49 lorentz ntpd[1765]: Deleting interface #17 eth3, > | > 10.1.10.68#123, interface stats: received=0, sent=0, dropped=0, > | > active_time=37 secs > | > Mar 20 09:18:12 lorentz kernel: lo: Disabled Privacy Extensions > | > Mar 20 09:18:12 lorentz kernel: e1000: eth1 NIC Link is Up 1000 Mbps > | > Full Duplex, Flow Control: None > | > Mar 20 09:18:12 lorentz kernel: ADDRCONF(NETDEV_UP): eth1: link is > | > not ready > | > Mar 20 09:18:12 lorentz kernel: ADDRCONF(NETDEV_CHANGE): eth1: link > | > becomes ready > | > Mar 20 09:18:14 lorentz kernel: eth3: intr type 3, mode 0, 2 vectors > | > allocated > | > Mar 20 09:18:14 lorentz kernel: eth3: NIC Link is Up 10000 Mbps > | > Mar 20 09:18:15 lorentz NET[5416]: > | > /etc/sysconfig/network-scripts/ifup-post : updated /etc/resolv.conf > | > Mar 20 09:18:17 lorentz ntpd[1765]: Listening on interface #18 eth3, > | > fe80::250:56ff:fe8a:45de#123 Enabled > | > Mar 20 09:18:17 lorentz ntpd[1765]: Listening on interface #19 eth3, > | > 10.1.10.68#123 Enabled > | > Mar 20 09:18:20 lorentz NET[5484]: > | > /etc/sysconfig/network-scripts/ifdown-post : updated > | > /etc/resolv.conf > | > Mar 20 09:18:22 lorentz ntpd[1765]: Deleting interface #18 eth3, > | > fe80::250:56ff:fe8a:45de#123, interface stats: received=0, sent=0, > | > dropped=0, active_time=5 secs > | > Mar 20 09:18:22 lorentz ntpd[1765]: Deleting interface #19 eth3, > | > 10.1.10.68#123, interface stats: received=0, sent=0, dropped=0, > | > active_time=5 secs > | > Mar 20 09:18:44 lorentz kernel: lo: Disabled Privacy Extensions > | > Mar 20 09:18:44 lorentz kernel: e1000: eth1 NIC Link is Up 1000 Mbps > | > Full Duplex, Flow Control: None > | > Mar 20 09:18:45 lorentz ntpd[1765]: Deleting interface #12 eth1, > | > fe80::250:56ff:fe8a:d03c#123, interface stats: received=0, sent=0, > | > dropped=0, active_time=5096 secs > | > Mar 20 09:18:45 lorentz ntpd[1765]: Deleting interface #13 eth1, > | > 10.20.2.24#123, interface stats: received=57, sent=57, dropped=0, > | > active_time=5096 secs > | > Mar 20 09:18:47 lorentz ntpd[1765]: Listening on interface #20 eth1, > | > fe80::250:56ff:fe8a:d03c#123 Enabled > | > Mar 20 09:18:47 lorentz ntpd[1765]: Listening on interface #21 eth1, > | > 10.20.2.24#123 Enabled > | > > | > D EVICE= eth1 > | > HWADDR=00:50:56:8a:d0:3c > | > NM_CONTROLLED=no > | > ONBOOT=yes > | > IPADDR=10.20.2.24 > | > BOOTPROTO=none > | > NETMASK=255.255.0.0 > | > DNS2=10.1.2.54 > | > TYPE=Ethernet > | > GATEWAY=10.20.1.12 > | > DNS1=10.20.1.12 > | > IPV6INIT=no > | > USERCTL=no > | > ~ > | > > | > DNS1=10.1.1.1 > | > DEVICE=eth3 > | > BOOTPROTO=none > | > TYPE=Ethernet > | > HWADDR=00:50:56:8a:45:de > | > NM_CONTROLLED=no > | > ONBOOT=no > | > IPV6INIT=no > | > USERCTL=no > | > IPADDR=10.1.10.68 > | > NETMASK=255.255.0.0 > | > GATEWAY=10.1.1.1 > | > ~ > | > | No sera un problema de enrutamiento? Puedes mandar la salida de > | netstat > | -rn antes y después de configurar eth3? > | > | Y iptables? no creo ya que en principio no añadir otra ethernet no > | debería desconectar la primera, pero... Manda la salida de iptables -L > | -n antes y después de configurar eth3. > | > | Y ya de paso, manda también la salida de ifconfig -a antes y después > | de > | configurar eth3. > | > | > > | > Gracias por adelantado. > | > > | > | De nada. > | > | -- > | Francesc Guitart > | > | > | > | > | _______________________________________________ > | CentOS-es mailing list > | [email protected] > | http://lists.centos.org/mailman/listinfo/centos-es > _______________________________________________ > CentOS-es mailing list > [email protected] > http://lists.centos.org/mailman/listinfo/centos-es > _______________________________________________ CentOS-es mailing list [email protected] http://lists.centos.org/mailman/listinfo/centos-es
