I have a computer which has two ethernet devices and also two network connection. I can not reach my computer both of them. One of them is always unreachable. I want to reach all of them. ifconfig eth0 Link encap:Ethernet HWaddr 00:1C:25:37:40:24 inet addr:192.168.1.5 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::21c:25ff:fe37:4024/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1553 errors:0 dropped:0 overruns:0 frame:0 TX packets:1306 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:197069 (192.4 KiB) TX bytes:167054 (163.1 KiB) Interrupt:177 Base address:0xee00 eth1 Link encap:Ethernet HWaddr 00:14:78:04:5B:E1 inet addr:194.54.40.28 Bcast:255.255.255.255 Mask:255.255.240.0 inet6 addr: fe80::214:78ff:fe04:5be1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:126221 errors:0 dropped:0 overruns:0 frame:0 TX packets:253 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:7748353 (7.3 MiB) TX bytes:24437 (23.8 KiB) Interrupt:233 Base address:0xa000 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:432 errors:0 dropped:0 overruns:0 frame:0 TX packets:432 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:35202 (34.3 KiB) TX bytes:35202 (34.3 KiB) route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.1.0 * 255.255.255.0 U 0 0 0 eth0 194.54.32.0 * 255.255.240.0 U 0 0 0 eth1 default 192.168.1.1 0.0.0.0 UG 0 0 0 eth0 default 194.54.32.1 0.0.0.0 UG 0 0 0 eth1 File: /etc/networkinterfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto eth1 iface eth1 inet dhcp What will I do? Thank you..
You can use http://subnetmask.info/ to check if the settings for eth1 are ok. Also, have you tried to connect from within your local network and from the outside?