Hi @all,
I have the following systems:
AMD Processor
Scientific Linux 6.0
Kernelversion: 2.6.32-71.18.2.el6.x86_64
KVM / Libvirt  out of the repository

    
I've setup my TLS-Certificates with the following howto
http://wiki.libvirt.org/page/TLSSetup
Now I want to connect the servers with
virsh -c qemu+tls://nebula3/system    (nebula3 is the hostname)
but the following error message always is displayed:
error: unable to connect to libvirtd at 'nebula3': No route to host
error: failed to connect to the hypervisor
SELinux is disabled  and the servers are in the same IP-Range (ping works fine)
Passwordless ssh-login also works fine!
If I connect to a server with 
qemu+ssh://nebula3/system   
all wroks fine...
Installation with virt-manager an bridged networkinterface also works fine...


Did anyone of you have an idea where my problem is?

Thanks for Help :)


Regards,

Christoph
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