Ping check not happening after upgradation to 11.1

[GayathriPulla]

Hi Team, 
We are not able to ping the servers after the upgradation is finished eventhough services are running fine.  Is it disabled?? or we have to do something..

[GayathriPulla]

Hi Jemma, yes, it is resetting to its default rulesm, but in the file you mentioned, I haven't able to find the custom-firewall .
Can you please suggest is there any other way.

[RomanBrandt]

In the mentioned tutorial it says to add the line. So I guess it is correct that it is not there and you can just add the line.

I solved the problem with the following hint from David Poirier:

Edit the file /etc/sysconfig/iptables-config

and set

IPTABLES_SAVE_ON_STOP

IPTABLES_SAVE_ON_RESTART

to yes and then add the rules:

iptables -I INPUT 1 -p icmp -j ACCEPT

If you now restart the service, the current configuration is saved.