Add DHCP relay

Change-Id: I75aa18b6798824285de4cdc101917ed72d8149d6
diff --git a/trellis/dhcpd.conf b/trellis/dhcpd.conf
index f5d338f..b193ce9 100644
--- a/trellis/dhcpd.conf
+++ b/trellis/dhcpd.conf
@@ -16,12 +16,17 @@
   option routers 10.0.3.254;
 }
 
+subnet 10.0.4.0 netmask 255.255.255.0 {
+  range 10.0.4.100 10.0.4.240;
+  option routers 10.0.4.254;
+}
+
 subnet 10.0.99.3 netmask 255.255.255.255 {
 }
 
 host h1 {
   hardware ethernet 00:aa:00:00:00:01;
-  fixed-address 10.0.2.1;
+  fixed-address 10.0.4.1;
 }
 
 host h2 {