diff --git a/modules/rhizo_base/manifests/sems.pp b/modules/rhizo_base/manifests/sems.pp
index 7ec4913..469622d 100644
--- a/modules/rhizo_base/manifests/sems.pp
+++ b/modules/rhizo_base/manifests/sems.pp
@@ -16,6 +16,7 @@ class rhizo_base::sems {
   $vsat_ip_address  = hiera('rhizo::vsat_ip_address', '127.0.0.1')
   $vsat_serv_ip_address  = hiera('rhizo::vsat_serv_ip_address', '192.168.12.10')
   $rtp_mux_port     = hiera('rhizo::rtp_mux_port', '5000')
+  $dids             = hiera('rhizo::dids', '')
 
   package { ['sems', ]:
       ensure  => installed,
diff --git a/modules/rhizo_base/templates/ifname_ext.conf.erb b/modules/rhizo_base/templates/ifname_ext.conf.erb
index f5efed9..450e9c8 100644
--- a/modules/rhizo_base/templates/ifname_ext.conf.erb
+++ b/modules/rhizo_base/templates/ifname_ext.conf.erb
@@ -1,3 +1,4 @@
-^.*_9519800748$=>mux-in
-^.*_9519800756$=>mux-in
+<% @dids.each do |did| -%>
+^.*_<%= did -%>$=>mux-in
+<% end -%>
 ^rhizomatica_00.*$=>mux-out
diff --git a/modules/rhizo_base/templates/mux-out.sbcprofile.conf.erb b/modules/rhizo_base/templates/mux-out.sbcprofile.conf.erb
index f95e1dc..fbeac1a 100644
--- a/modules/rhizo_base/templates/mux-out.sbcprofile.conf.erb
+++ b/modules/rhizo_base/templates/mux-out.sbcprofile.conf.erb
@@ -1,7 +1,7 @@
 next_hop=<%= @vsat_serv_ip_address %>:5090
 RURI=sip:$rU@<%= @vsat_serv_ip_address %>
 
-b_rtp_mux_ip==<%= @vsat_serv_ip_address %>
+b_rtp_mux_ip=<%= @vsat_serv_ip_address %>
 b_rtp_mux_port=<%= @rtp_mux_port %>
 
 enable_rtprelay=yes