env.peer2peer.iut_client_ip6

'net':IUT{
    'client_host'{
        {'iut_rpcs':IUT},
        if:'iut_if',
        addr:'client_addr':inet6:unicast
    },
    'server_host'{
        {'tst_rpcs':tester},
        if:'tst_if',
        addr:'server_addr':inet6:unicast
    }
},
'client_rpcs'='iut_rpcs',
'client_if'='iut_if',
'server_rpcs'='tst_rpcs',
'server_if'='tst_if'