diff --git a/system-test/deprecated-testcases/gce-gpu-perf-100-node.yml b/system-test/deprecated-testcases/gce-gpu-perf-100-node.yml
index 12c72ce494..6f92c4cafd 100755
--- a/system-test/deprecated-testcases/gce-gpu-perf-100-node.yml
+++ b/system-test/deprecated-testcases/gce-gpu-perf-100-node.yml
@@ -13,7 +13,7 @@ steps:
       CLIENT_OPTIONS: "bench-tps=2=--tx_count 15000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a,us-west1-b,us-central1-a,europe-west4-a"
       ALLOW_BOOT_FAILURES: "true"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/partition-testcases/gce-5-node-3-partition.yml b/system-test/partition-testcases/gce-5-node-3-partition.yml
index 2a4dfb156a..2d9ad0a19f 100755
--- a/system-test/partition-testcases/gce-5-node-3-partition.yml
+++ b/system-test/partition-testcases/gce-5-node-3-partition.yml
@@ -11,7 +11,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       APPLY_PARTITIONS: "true"
       NETEM_CONFIG_FILE: "system-test/netem-configs/partial-loss-three-partitions"
diff --git a/system-test/partition-testcases/gce-partition-once-then-stabilize.yml b/system-test/partition-testcases/gce-partition-once-then-stabilize.yml
index 264231fe5c..f0117213be 100755
--- a/system-test/partition-testcases/gce-partition-once-then-stabilize.yml
+++ b/system-test/partition-testcases/gce-partition-once-then-stabilize.yml
@@ -11,7 +11,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       APPLY_PARTITIONS: "true"
       NETEM_CONFIG_FILE: "system-test/netem-configs/partial-loss-three-partitions"
diff --git a/system-test/partition-testcases/gce-partition-with-offline.yml b/system-test/partition-testcases/gce-partition-with-offline.yml
new file mode 100755
index 0000000000..9fd6904a07
--- /dev/null
+++ b/system-test/partition-testcases/gce-partition-with-offline.yml
@@ -0,0 +1,27 @@
+steps:
+  - command: "system-test/testnet-automation.sh"
+    label: "GCE - CPU Only 5 Node - 20% network offline with 2 partitions"
+    env:
+      UPLOAD_RESULTS_TO_SLACK: "true"
+      CLOUD_PROVIDER: "gce"
+      TESTNET_TAG: "gce-perf-cpu-only"
+      NUMBER_OF_VALIDATOR_NODES: 4
+      ENABLE_GPU: "false"
+      VALIDATOR_NODE_MACHINE_TYPE: "--machine-type n1-standard-16"
+      NUMBER_OF_CLIENT_NODES: 1
+      CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
+      TESTNET_ZONES: "us-west1-a"
+      USE_PUBLIC_IP_ADDRESSES: "false"
+      ADDITIONAL_FLAGS: "--dedicated"
+      APPLY_PARTITIONS: "true"
+      NETEM_CONFIG_FILE: "system-test/netem-configs/complete-loss-two-partitions"
+      PARTITION_ACTIVE_DURATION: 30
+      PARTITION_INACTIVE_DURATION: 30
+      PARTITION_ITERATION_COUNT: 5
+      TEST_TYPE: "partition"
+      EXTRA_PRIMORDIAL_STAKES: 4
+      WAIT_FOR_EQUAL_STAKE: "true"
+      WARMUP_SLOTS_BEFORE_TEST: 400
+      NUMBER_OF_OFFLINE_NODES: 1
+    agents:
+      - "queue=gce-deploy"
diff --git a/system-test/performance-testcases/aws-cpu-only-perf-10-node.yml b/system-test/performance-testcases/aws-cpu-only-perf-10-node.yml
index e59b7cd4cb..e9777327bd 100755
--- a/system-test/performance-testcases/aws-cpu-only-perf-10-node.yml
+++ b/system-test/performance-testcases/aws-cpu-only-perf-10-node.yml
@@ -13,7 +13,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west-1a,us-west-1c,us-east-1a,eu-west-1a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: ""
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/aws-cpu-only-perf-5-node.yml b/system-test/performance-testcases/aws-cpu-only-perf-5-node.yml
index 164439cfc8..7871e83282 100755
--- a/system-test/performance-testcases/aws-cpu-only-perf-5-node.yml
+++ b/system-test/performance-testcases/aws-cpu-only-perf-5-node.yml
@@ -13,7 +13,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west-1a,us-west-1c,us-east-1a,eu-west-1a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: ""
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/azure-cpu-only-perf-5-node.yml b/system-test/performance-testcases/azure-cpu-only-perf-5-node.yml
index e034801256..0ce220bf8e 100755
--- a/system-test/performance-testcases/azure-cpu-only-perf-5-node.yml
+++ b/system-test/performance-testcases/azure-cpu-only-perf-5-node.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "westus"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: ""
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-cpu-only-perf-10-node.yml b/system-test/performance-testcases/gce-cpu-only-perf-10-node.yml
index 2e36eebb96..d42ff30318 100755
--- a/system-test/performance-testcases/gce-cpu-only-perf-10-node.yml
+++ b/system-test/performance-testcases/gce-cpu-only-perf-10-node.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a,us-west1-b,us-central1-a,europe-west4-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-cpu-only-perf-5-node-single-region.yml b/system-test/performance-testcases/gce-cpu-only-perf-5-node-single-region.yml
index 9a5950e788..86eb6064f4 100755
--- a/system-test/performance-testcases/gce-cpu-only-perf-5-node-single-region.yml
+++ b/system-test/performance-testcases/gce-cpu-only-perf-5-node-single-region.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-cpu-only-perf-5-node.yml b/system-test/performance-testcases/gce-cpu-only-perf-5-node.yml
index 997f9e39e0..1bc1bebb82 100755
--- a/system-test/performance-testcases/gce-cpu-only-perf-5-node.yml
+++ b/system-test/performance-testcases/gce-cpu-only-perf-5-node.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a,us-west1-b,us-central1-a,europe-west4-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-gpu-perf-10-node-single-region.yml b/system-test/performance-testcases/gce-gpu-perf-10-node-single-region.yml
index c2036a4465..d5b9056a86 100755
--- a/system-test/performance-testcases/gce-gpu-perf-10-node-single-region.yml
+++ b/system-test/performance-testcases/gce-gpu-perf-10-node-single-region.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-gpu-perf-10-node.yml b/system-test/performance-testcases/gce-gpu-perf-10-node.yml
index f4b568b076..f723716ac8 100755
--- a/system-test/performance-testcases/gce-gpu-perf-10-node.yml
+++ b/system-test/performance-testcases/gce-gpu-perf-10-node.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a,us-west1-b,us-central1-a,europe-west4-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-gpu-perf-25-node-single-region.yml b/system-test/performance-testcases/gce-gpu-perf-25-node-single-region.yml
index b9dd8a7725..6207393549 100755
--- a/system-test/performance-testcases/gce-gpu-perf-25-node-single-region.yml
+++ b/system-test/performance-testcases/gce-gpu-perf-25-node-single-region.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-gpu-perf-25-node.yml b/system-test/performance-testcases/gce-gpu-perf-25-node.yml
index b4ed7f5186..c4392022b6 100755
--- a/system-test/performance-testcases/gce-gpu-perf-25-node.yml
+++ b/system-test/performance-testcases/gce-gpu-perf-25-node.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a,us-west1-b,us-central1-a,europe-west4-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-gpu-perf-5-node-single-region.yml b/system-test/performance-testcases/gce-gpu-perf-5-node-single-region.yml
index 014babef6d..8835d949be 100755
--- a/system-test/performance-testcases/gce-gpu-perf-5-node-single-region.yml
+++ b/system-test/performance-testcases/gce-gpu-perf-5-node-single-region.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-gpu-perf-5-node.yml b/system-test/performance-testcases/gce-gpu-perf-5-node.yml
index 16a2ed8a4b..56ce03a53a 100755
--- a/system-test/performance-testcases/gce-gpu-perf-5-node.yml
+++ b/system-test/performance-testcases/gce-gpu-perf-5-node.yml
@@ -12,7 +12,7 @@ steps:
       NUMBER_OF_CLIENT_NODES: 1
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a,us-west1-b,us-central1-a,europe-west4-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-gpu-perf-50-node-single-region.yml b/system-test/performance-testcases/gce-gpu-perf-50-node-single-region.yml
index 04b365df30..28a4db844a 100755
--- a/system-test/performance-testcases/gce-gpu-perf-50-node-single-region.yml
+++ b/system-test/performance-testcases/gce-gpu-perf-50-node-single-region.yml
@@ -13,7 +13,7 @@ steps:
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a"
       ALLOW_BOOT_FAILURES: "true"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/performance-testcases/gce-gpu-perf-50-node.yml b/system-test/performance-testcases/gce-gpu-perf-50-node.yml
index d14269d284..60ee005687 100755
--- a/system-test/performance-testcases/gce-gpu-perf-50-node.yml
+++ b/system-test/performance-testcases/gce-gpu-perf-50-node.yml
@@ -13,7 +13,7 @@ steps:
       CLIENT_OPTIONS: "bench-tps=1=--tx_count 10000 --thread-batch-sleep-ms 250"
       TESTNET_ZONES: "us-west1-a,us-west1-b,us-central1-a,europe-west4-a"
       ALLOW_BOOT_FAILURES: "true"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents:
diff --git a/system-test/stability-testcases/gce-perf-stability-5-node-single-region.yml b/system-test/stability-testcases/gce-perf-stability-5-node-single-region.yml
index 5136286621..7970c27d15 100755
--- a/system-test/stability-testcases/gce-perf-stability-5-node-single-region.yml
+++ b/system-test/stability-testcases/gce-perf-stability-5-node-single-region.yml
@@ -15,6 +15,5 @@ steps:
       USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
-      ALLOW_PRIVATE_ADDR: "true"
     agents:
       - "queue=gce-deploy"
diff --git a/system-test/stability-testcases/gce-stability-5-node.yml b/system-test/stability-testcases/gce-stability-5-node.yml
index bfb95356dd..132771ade6 100755
--- a/system-test/stability-testcases/gce-stability-5-node.yml
+++ b/system-test/stability-testcases/gce-stability-5-node.yml
@@ -11,7 +11,7 @@ steps:
       VALIDATOR_NODE_MACHINE_TYPE: "--machine-type n1-standard-16"
       NUMBER_OF_CLIENT_NODES: 0
       TESTNET_ZONES: "us-west1-a,us-west1-b,us-central1-a,europe-west4-a"
-      USE_PUBLIC_IP_ADDRESSES: "true"
+      USE_PUBLIC_IP_ADDRESSES: "false"
       ADDITIONAL_FLAGS: "--dedicated"
       TEST_TYPE: "fixed_duration"
     agents: