Add DHCP relay

Change-Id: I75aa18b6798824285de4cdc101917ed72d8149d6
diff --git a/trellis/bgpdbgp1.conf b/trellis/bgpdbgp1.conf
index 383460c..5400dfd 100644
--- a/trellis/bgpdbgp1.conf
+++ b/trellis/bgpdbgp1.conf
@@ -6,6 +6,7 @@
 !
 ip prefix-list 1 seq 10 permit 10.0.2.0/24
 ip prefix-list 1 seq 20 permit 10.0.3.0/24
+ip prefix-list 1 seq 30 permit 10.0.4.0/24
 !
 route-map NEXTHOP4 permit 10
 match ip address prefix-list 1
@@ -42,6 +43,7 @@
 !
 network 10.0.2.0/24
 network 10.0.3.0/24
+network 10.0.4.0/24
 !
 ! IPv6
 !