Mailing-List: contact users-help@cloudstack.apache.org; run by ezmlm
Precedence: bulk
Reply-To: users@cloudstack.apache.org
Received-SPF: pass (nike.apache.org: domain of acldstkusr@gmail.com designates
 209.85.214.176 as permitted sender)
MIME-Version: 1.0
Date: Thu, 26 Mar 2015 15:39:22 +0000
Message-ID: 
 <CADfcUwHJ3Zj4_VngMJNZJqaF3=dNsdvnAm3mJE8kM7pmXhW_RA@mail.gmail.com>
Subject: Virtual Routers not responding to dns requests
From: cs user <acldstkusr@gmail.com>
To: users@cloudstack.apache.org
Content-Type: multipart/alternative; boundary=001a11c3093adeadd6051232d151

--001a11c3093adeadd6051232d151
Content-Type: text/plain; charset=UTF-8

Hi All,

We have upgraded from 4.3 to 4.4.2.

After some issues with starting the systemvm's, the virtual routers no
longer responding to dns requests from the vm's which we start (or existing
ones).

We have disabled the firewall on the virtual routers and ran tcpdump on
them but we can't see any inbound traffic on port 53 (udp or tcp). If we
log onto the virtual routers and dig locally against eth0 and the alias on
eth0 both of these return fine with the correct IP.

This is using Xenserver 6.1 as the host.

Has anyone come across this before? dhcp lookups appear to be working fine.
Is there a firewall rule in place on the router vm's (other than iptables),
similar to the security groups which are applied by Xen, which is
preventing these requests from hitting the routers?

Many thanks for any help.

--001a11c3093adeadd6051232d151--