Portal Home > Knowledgebase > Articles Database > No connection to internet: Centos 7
No connection to internet: Centos 7
| Posted by 3FRSB, 01-18-2016, 11:59 PM |
| Hi,
I'm using centos 7 on my cloudstack host. This is minimal installation. I can ping gateway and other host in same segment. I have put dns ip in /etc/resolv.conf and restart network. I also put in ifcfg-ifcfg-enp13s0f0. But still cannot ping to outside. Any idea where i need to search out?
Thanks.
|
| Posted by sanlinux, 01-19-2016, 01:23 AM |
| This can be due to multiple reasons.. could you paste the content of file enp13s0f0 here.. and also run this command 'ifconfig -a' and paste the output..
|
| Posted by net, 01-19-2016, 01:31 AM |
| You might need to check your gateway too.
|
| Posted by 3FRSB, 01-19-2016, 02:29 AM |
| Actually this is cause of bridge. Single NIC cannot share multiple IP. If share then network won't goes up. If up, cannot ping gateway also. Seems it became crazy.
|
| Posted by RobertJP, 01-19-2016, 03:19 AM |
| Hello, you shoud be able to use multiple IP's on the same NIC without problems.
If you PM me i can prolly help you out ( noticed from your other post that you're trying to build a firewall ).
|
| Posted by Srv24x7, 01-19-2016, 04:26 AM |
| Can you please check I have a doubt "ifcfg-ifcfg-enp13s0f0" there should only ifcfg-enp13s0f0. Please confirm.
To be able to ping to the outside public, you go to have a public IP assigned to your NIC.
If you want both public and private IP, you can assign multiple IPs to same physical network:
ifcfg-enp13s0f0
Add something like below:
IPADDR0=""
IPADDR1=""
Restart the network after this change and use the below command to check the IP status to the network interface.
ip addr
|
| Posted by teeps, 01-19-2016, 08:00 AM |
| Can you paste your ifcfg-* interfaces configuration? and output of ip a and ip r commands with it?
|
Add to Favourites 
Print this Article
Also Read
