Home / server / Questions / 606008
In Process
jayunit100
Asked: 2014-06-19 01:34:27 +0800 CST

KVM : domain names are resolved, but cannot ping

  • 772

I've found that in KVM, my networking is acting funny. Oddly

(1) I can resolve external internet locations using nslookup or ping , but I cannot actually receive a ping back.

(2) I cannot ping (even from my host) into my VM. Nor can I ping my host from my VM. So, networking is clearly, severely messed up.

Resolved addresses, but cant ping them...

However, my networking doesn't look particularly bad - eth0 seems to have a reasonable address etc...

enter image description here

Any thoughts on how to troubleshoot a KVM box which is able to resolve, but not connect/ping, to a domain on the web ? I've tested multiple domains (google,yahoo, etc...) and all seem to resolve no problem - indicating that the resolution process is not broken.

UPDATE

route -n output is shown below:

192.168.122.0    0.0.0.0  255.255.255.0  U   0 0 0 eth0
169.254.0.0      0.0.0.0  255.255.0.0   U   1002 0 0 eth0
0.0.0.0        192.168.122.1      UG  0 0 0 eth0

UPDATE 2

Actually, I cant even ping within my host into my VM, so something is definetly broke - and its not necessarily related to any external networking - its broken at the host->guest level.

networking

0 Answers