diff --git a/netsim/sims/example/example.json b/netsim/sims/example/example.json
index 76f600e..0691437 100644
--- a/netsim/sims/example/example.json
+++ b/netsim/sims/example/example.json
@@ -7,7 +7,7 @@
                 {
                     "name": "server",
                     "count": 1,
-                    "cmd": "sendme server /var/lib/netsim/128MB.bin /var/lib/netsim/1GB.bin -a 0.0.0.0:4433",
+                    "cmd": "sendme server /var/lib/netsim/128MB.bin /var/lib/netsim/1GB.bin",
                     "type": "public",
                     "wait": 5,
                     "connect": {
@@ -34,7 +34,7 @@
                 {
                     "name": "server",
                     "count": 1,
-                    "cmd": "sendme server /var/lib/netsim/128MB.bin /var/lib/netsim/1GB.bin -a 0.0.0.0:4433",
+                    "cmd": "sendme server /var/lib/netsim/128MB.bin /var/lib/netsim/1GB.bin",
                     "type": "public",
                     "wait": 5,
                     "connect": {
@@ -66,7 +66,7 @@
                 {
                     "name": "server",
                     "count": 1,
-                    "cmd": "sendme server /var/lib/netsim/128MB.bin /var/lib/netsim/1GB.bin -a 0.0.0.0:4433",
+                    "cmd": "sendme server /var/lib/netsim/128MB.bin /var/lib/netsim/1GB.bin",
                     "type": "public",
                     "wait": 5,
                     "connect": {
diff --git a/netsim/sims/example/sendme.json b/netsim/sims/example/sendme.json
index 9df8c79..22451ee 100644
--- a/netsim/sims/example/sendme.json
+++ b/netsim/sims/example/sendme.json
@@ -8,7 +8,7 @@
                 {
                     "name": "server",
                     "count": 1,
-                    "cmd": "./bins/sendme provide -a 0.0.0.0:4433 --key keys/server_%d.key --auth-token gu2-RPLM7g86T66_qsib5xvAX7n_Wso6C51A5EL8qDY data/1G.bin",
+                    "cmd": "./bins/sendme provide --key keys/server_%d.key --auth-token gu2-RPLM7g86T66_qsib5xvAX7n_Wso6C51A5EL8qDY data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
diff --git a/netsim/sims/integration/derper.json b/netsim/sims/integration/derper.json
index efc92e8..117431f 100644
--- a/netsim/sims/integration/derper.json
+++ b/netsim/sims/integration/derper.json
@@ -19,7 +19,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh --config data/derp.config.toml start -a 0.0.0.0:4433 --add data/1MB.bin",
+                    "cmd": "./bins/iroh --config data/derp.config.toml start --add data/1MB.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -60,7 +60,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh --config data/derp.config.toml start -a 0.0.0.0:4433 --add data/1MB.bin",
+                    "cmd": "./bins/iroh --config data/derp.config.toml start --add data/1MB.bin",
                     "type": "nat",
                     "wait": 10,
                     "connect": {
@@ -101,7 +101,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh --config data/derp.config.toml start -a 0.0.0.0:4433 --add data/1MB.bin",
+                    "cmd": "./bins/iroh --config data/derp.config.toml start --add data/1MB.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -142,7 +142,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh --config data/derp.config.toml start -a 0.0.0.0:4433 --add data/1MB.bin",
+                    "cmd": "./bins/iroh --config data/derp.config.toml start --add data/1MB.bin",
                     "type": "nat",
                     "wait": 10,
                     "connect": {
diff --git a/netsim/sims/integration/iroh.json b/netsim/sims/integration/iroh.json
index 6137170..eaca669 100644
--- a/netsim/sims/integration/iroh.json
+++ b/netsim/sims/integration/iroh.json
@@ -9,7 +9,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1MB.bin",
+                    "cmd": "./bins/iroh start --add data/1MB.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -39,7 +39,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1MB.bin",
+                    "cmd": "./bins/iroh start --add data/1MB.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -68,7 +68,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1MB.bin",
+                    "cmd": "./bins/iroh start --add data/1MB.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -97,7 +97,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1MB.bin",
+                    "cmd": "./bins/iroh start --add data/1MB.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
diff --git a/netsim/sims/iroh/iroh.json b/netsim/sims/iroh/iroh.json
index 85d0100..8a7ed18 100644
--- a/netsim/sims/iroh/iroh.json
+++ b/netsim/sims/iroh/iroh.json
@@ -8,7 +8,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -37,7 +37,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -66,7 +66,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -95,7 +95,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -124,7 +124,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -153,7 +153,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -182,7 +182,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -211,7 +211,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
diff --git a/netsim/sims/iroh/iroh_200ms.json b/netsim/sims/iroh/iroh_200ms.json
index 131e9d5..4b2ba16 100644
--- a/netsim/sims/iroh/iroh_200ms.json
+++ b/netsim/sims/iroh/iroh_200ms.json
@@ -8,7 +8,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -42,7 +42,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -76,7 +76,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -110,7 +110,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -144,7 +144,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -178,7 +178,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -212,7 +212,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -246,7 +246,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
diff --git a/netsim/sims/iroh/iroh_20ms.json b/netsim/sims/iroh/iroh_20ms.json
index 620bb94..4ede5e9 100644
--- a/netsim/sims/iroh/iroh_20ms.json
+++ b/netsim/sims/iroh/iroh_20ms.json
@@ -8,7 +8,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -42,7 +42,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -76,7 +76,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -110,7 +110,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -144,7 +144,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -178,7 +178,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -212,7 +212,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -246,7 +246,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
diff --git a/netsim/sims/lossy/iroh.json b/netsim/sims/lossy/iroh.json
index bfcadb1..c21278e 100644
--- a/netsim/sims/lossy/iroh.json
+++ b/netsim/sims/lossy/iroh.json
@@ -8,7 +8,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -42,7 +42,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -76,7 +76,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -110,7 +110,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -144,7 +144,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -178,7 +178,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -212,7 +212,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -246,7 +246,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
diff --git a/netsim/sims/standard/iroh.json b/netsim/sims/standard/iroh.json
index 85d0100..8a7ed18 100644
--- a/netsim/sims/standard/iroh.json
+++ b/netsim/sims/standard/iroh.json
@@ -8,7 +8,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -37,7 +37,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -66,7 +66,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -95,7 +95,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 1,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -124,7 +124,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -153,7 +153,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -182,7 +182,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {
@@ -211,7 +211,7 @@
                 {
                     "name": "iroh_srv",
                     "count": 2,
-                    "cmd": "./bins/iroh start -a 0.0.0.0:4433 --add data/1G.bin",
+                    "cmd": "./bins/iroh start --add data/1G.bin",
                     "type": "public",
                     "wait": 10,
                     "connect": {