perfSONAR User Q&A and Other Discussion

[John-Paul Robinson <>]

Hi,

I'm trying to configure a perfsonar test environment and am having a
hard time determining how to get my nodes to refer to each other by DNS
name rather than IP address.

I have two nodes on different private networks and
allow_internal_addresses is set on both.

My first node is configured by DHCP for it's IP and hostname.  It
reflects its correct hostname in the /toolkit UI.  This node sits behind
a firewall that exposes it's "public" IP to other nodes in the fabric.
My second node, which happens to be statically IP assigned, sits on
another internal network.

The two nodes can reach each other when the using the correct
destination IP addresses.  For example, when the second node uses the
first nodes hostname which resolves to it's public IP and not the IP it
uses behind the firewall.

My first node is set up to run scheduled throughput tests with the
second node.  The node1->node2 tests succeed and data is being gathered
for the tests.  However the node2->node1 reverse test that is triggered
to run on node2 fails because it is being told to use node1's
behind-the-firewall address.

I can't seem to find the documentation I need so the bwctl test
scheduler tells node2 to use the DNS of node1 as the target address
instead of the unreachable, behind-the-firewall IP address.

Is there such a configuration?

How could I be missing something that seems to be such an obvious config?

Thanks,

~jpr