[SOLVED] Can't change MTA setting

[p_nyet]

Dear All,
Yesterday I've upgrade ZCS 6.0.2 OSE to ZCS 6.0.5, on my zimbra I'm using external smtp relay (smtp.myisp.net:25).
Now I want to use zimbra MTA as outgoing email, but I can't change "Relay MTA for external delivery:" from zimbra administration panel. I get the following error when I trying to change some settings and save these setting, please see below:

Invalid Value! Message: Error! Value for MTA Trusted Networks must contain local network interfaces: 192.168.122.1.
Additional information about MTA Trusted Networks configuration can be found at http://wiki.zimbra.com/index.ph...

$ postconf -n | grep mynetworks
mynetworks = 127.0.0.0/8 202.1.10.0/28

On my network interface:
202.1.10.2

Anyone know about this?
This may zimbra's bug?

[p_nyet]

I'm forgot to check all network interfaces on my box and I'm found virbr0 with an IP address 192.168.122.1..

I'm so stupid, because I didn't check before, to remove virbr0 I've to remove "Virtualization" group on my box...

# yum groupremove "Virtualization"