On 18/03/14 19:49, Giri Prasad wrote: >> Now, after assigning a static IPV4 address, this eth1 is pinging to the default gateway 192.168.1.1. But eth1 is not pinging/connecting to the external internet. Can someone please provide some answers. >> >> >Can you ping an IP Address - such as 8.8.8.8? >If you can, then most likely a DNS config issue! Since you mention you had to assign an IP Address manually, the file /etc/resolv.conf may not have the necessary DNS info to resolve Internet names! No, I am not able to ping to an external ip like 8.8.8.8. Following are the details: #cat /etc/resolv.conf # Generated by NetworkManager search cruzesoft.com nameserver 192.168.1.1 # No nameservers found; try putting DNS servers into your # ifcfg files in /etc/sysconfig/network-scripts like so: # # DNS1=xxx.xxx.xxx.xxx # DNS2=xxx.xxx.xxx.xxx # DOMAIN=lab.foo.com bar.foo.com #cat /etc/sysconfig/network NETWORKING=yes NETWORKING_IPV6=no HOSTNAME=gpcentospc1.cruzesoft.com GATEWAY=192.168.1.1 # ifconfig 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:65536 Metric:1 RX packets:12 errors:0 dropped:0 overruns:0 frame:0 TX packets:12 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:720 (720.0 b) TX bytes:720 (720.0 b) # insmod asix.ko # ifconfig 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:65536 Metric:1 RX packets:12 errors:0 dropped:0 overruns:0 frame:0 TX packets:12 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:720 (720.0 b) TX bytes:720 (720.0 b) # ping 192.168.1.1 connect: Network is unreachable #ifconfig eth1 192.168.1.20 netmask 255.255.255.0 broadcast 192.168.1.255 #ifconfig eth1 Link encap:Ethernet HWaddr 00:00:00:00:00:01 inet addr:192.168.1.20 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::200:ff:fe00:1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1 errors:0 dropped:0 overruns:0 frame:0 TX packets:3 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:64 (64.0 b) TX bytes:250 (250.0 b) 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:65536 Metric:1 RX packets:12 errors:0 dropped:0 overruns:0 frame:0 TX packets:12 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:720 (720.0 b) TX bytes:720 (720.0 b) #ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=254 time=3.89 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=254 time=1.89 ms 64 bytes from 192.168.1.1: icmp_seq=3 ttl=254 time=1.80 ms 64 bytes from 192.168.1.1: icmp_seq=4 ttl=254 time=1.94 ms ^C --- 192.168.1.1 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3432ms rtt min/avg/max/mdev = 1.800/2.383/3.897/0.875 ms # ping google.com connect: Network is unreachable # ping google.com connect: Network is unreachable # 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 eth1 # ping 8.8.8.8 connect: Network is unreachable # route add default gw 192.168.1.1 # route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 192.168.1.1 0.0.0.0 UG 0 0 0 eth1 192.168.1.0 * 255.255.255.0 U 0 0 0 eth1 # ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=254 time=1.94 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=254 time=1.91 ms 64 bytes from 192.168.1.1: icmp_seq=3 ttl=254 time=1.88 ms 64 bytes from 192.168.1.1: icmp_seq=4 ttl=254 time=1.94 ms ^C --- 192.168.1.1 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3365ms rtt min/avg/max/mdev = 1.884/1.922/1.945/0.024 ms # ping google.com PING google.com (74.125.236.195) 56(84) bytes of data. ^C --- google.com ping statistics --- 14 packets transmitted, 0 received, 100% packet loss, time 13833ms # ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. ^C --- 8.8.8.8 ping statistics --- 18 packets transmitted, 0 received, 100% packet loss, time 17372ms # ls /etc/sysconfig/network-scripts/ifcfg-* /etc/sysconfig/network-scripts/ifcfg-lo # dmesg | tail -10 [ 93.800319] asix 1-1.1:1.0: usb_probe_interface - got id [ 93.800335] ASIX USB Ethernet Adapter:v4.12.0 18:32:04 Mar 18 2014 [ 93.800335] http://www.asix.com.tw [ 94.427358] eth%d: status ep1in, 8 bytes period 11 [ 94.427749] eth0: register 'asix' at usb-0000:00:1a.0-1.1, ASIX AX88772B USB 2.0 Ethernet, 00:00:00:00:00:01 [ 94.429348] usbcore: registered new interface driver asix [ 173.849024] usb 1-1.1: link qh128-0001/ffff880214aa7100 start 3 [1/0 us] [ 173.849069] eth1: rxqlen 0 --> 5 [ 173.886479] eth1: ax88772b - Link status is: 0 [ 174.014618] eth1: ax88772b - Link status is: 1 [root at gpcentospc1 AX88772C_772B_772A_760_772_178_LINUX_DRIVER_v4.12.0_Source]#