BDR

Hello all, I am attempting to set up BDR between 2 separate nodes. I
have been following the guide and got to here
http://bdr-project.org/docs/0.9.0/quickstart-enabling.html
I am now stuck on this section

"Then you run a function that identifies a BDR group that delineates a
connection string for other nodes to communicate with (for the first
node, we will use port 5598) from the same SQL session as above on port
5598:

     SELECT bdr.bdr_group_create(
       local_node_name := 'node1',
       node_external_dsn := 'port=5598 dbname=bdrdemo'
);"

However my instances are not on the same server and I attempted to
simply add a host=(the ip) but that failed. Please help

Thanks in advance!