diff --git a/build/mchn/HX/boot b/build/mchn/HX/boot
index 1de6eeed..d73fefac 100644
--- a/build/mchn/HX/boot
+++ b/build/mchn/HX/boot
@@ -14,6 +14,8 @@ set dtc dis
 set dk dis
 set pd ena
 set pd on
+set ch enabled
+set ch node=177002
 at ptr out/pdp10-ka/dskdmp.rim
 at mta0 out/pdp10-ka/sources.tape
 set mta mpx=7
diff --git a/build/mchn/HX/run b/build/mchn/HX/run
index adbd7417..36c98696 100644
--- a/build/mchn/HX/run
+++ b/build/mchn/HX/run
@@ -16,7 +16,6 @@ set dk dis
 set pd enabled
 set pd on
 set dk disabled
-set stk enabled
 set tk enabled
 at -u tk 10000 speed=300
 # 10001 reserved for GE bagbiters, hah.
@@ -37,6 +36,10 @@ set imp ip=192.168.2.101/24
 set imp gw=172.31.1.100
 set imp host=10.3.0.6
 at imp tap:tap0
+set ch enabled
+set ch node=177002
+set ch peer=localhost:44041
+att ch 44042
 at ptr out/pdp10-ka/dskdmp.rim
 at dpa0 out/pdp10-ka/rp03.2
 at dpa1 out/pdp10-ka/rp03.3
diff --git a/build/pdp10-ka/config.202 b/build/pdp10-ka/config.202
index e9f5b509..e57a1ba9 100644
--- a/build/pdp10-ka/config.202
+++ b/build/pdp10-ka/config.202
@@ -408,10 +408,10 @@ DEFOPT NNETCH==20.	; # NCP net channels
 DEFOPT INETP==1		; Include Internet code
 DEFOPT TCPP==1		; Include TCP code
 DEFOPT XBL==20.		; # TCP network channels
-DEFOPT CHAOSP==0	;CHAOS NET
-DEFOPT MYCHAD==3114	;CHAOS NET ADDRESS
-DEFOPT NINDX==30.	;NUMBER OF INDICES
-DEFOPT CH10P==0		;CHAOS NET VIA PDP-10 I/O BUS, NOT FRONT-END
+DEFOPT CHAOSP==1	;CHAOS NET
+DEFOPT MYCHAD==177002	;CHAOS NET ADDRESS
+DEFOPT NINDX==50.	;NUMBER OF INDICES
+DEFOPT CH10P==1		;CHAOS NET VIA PDP-10 I/O BUS, NOT FRONT-END
 
 DEFOPT NOTYS==1		;# KA-10 CONSOLE 0 TTYS
 DEFOPT MTYP==1		;HAS MORTON MULTIPLEX BOX