diff --git a/test/e2e/pkg/infrastructure.go b/test/e2e/pkg/infrastructure.go
new file mode 100644
index 000000000..64d1e361c
--- /dev/null
+++ b/test/e2e/pkg/infrastructure.go
@@ -0,0 +1,20 @@
+package e2e
+
+import "net"
+
+// InfrastructureData contains the relevant information for a set of existing
+// infrastructure that is to be used for running a testnet.
+type InfrastructureData struct {
+
+	// Instances is a map of all of the machine instances on which to run
+	// processes for a testnet.
+	// The key of the map is the name of the instance, which each must correspond
+	// to the names of one of the testnet nodes defined in the testnet manifest.
+	Instances map[string]InstanceData `json:"instances"`
+}
+
+// InstanceData contains the relevant information for a machine instance backing
+// one of the nodes in the testnet.
+type InstanceData struct {
+	IPAddress net.IP `json:"ip_address"`
+}
diff --git a/test/e2e/runner/main.go b/test/e2e/runner/main.go
index 048d2cabc..06a521ed4 100644
--- a/test/e2e/runner/main.go
+++ b/test/e2e/runner/main.go
@@ -53,7 +53,7 @@ func NewCLI() *CLI {
 			if err := Cleanup(cli.testnet); err != nil {
 				return err
 			}
-			if err := Setup(cli.testnet); err != nil {
+			if err := Setup(cli.testnet, e2e.InfrastructureData{}); err != nil {
 				return err
 			}
 
@@ -125,7 +125,7 @@ func NewCLI() *CLI {
 		Use:   "setup",
 		Short: "Generates the testnet directory and configuration",
 		RunE: func(cmd *cobra.Command, args []string) error {
-			return Setup(cli.testnet)
+			return Setup(cli.testnet, e2e.InfrastructureData{})
 		},
 	})
 
@@ -135,7 +135,7 @@ func NewCLI() *CLI {
 		RunE: func(cmd *cobra.Command, args []string) error {
 			_, err := os.Stat(cli.testnet.Dir)
 			if os.IsNotExist(err) {
-				err = Setup(cli.testnet)
+				err = Setup(cli.testnet, e2e.InfrastructureData{})
 			}
 			if err != nil {
 				return err
@@ -258,7 +258,7 @@ Does not run any perbutations.
 			if err := Cleanup(cli.testnet); err != nil {
 				return err
 			}
-			if err := Setup(cli.testnet); err != nil {
+			if err := Setup(cli.testnet, e2e.InfrastructureData{}); err != nil {
 				return err
 			}
 
diff --git a/test/e2e/runner/setup.go b/test/e2e/runner/setup.go
index 202f3f79e..8425a92d2 100644
--- a/test/e2e/runner/setup.go
+++ b/test/e2e/runner/setup.go
@@ -39,7 +39,7 @@ const (
 )
 
 // Setup sets up the testnet configuration.
-func Setup(testnet *e2e.Testnet) error {
+func Setup(testnet *e2e.Testnet, ifd e2e.InfrastructureData) error {
 	logger.Info("setup", "msg", log.NewLazySprintf("Generating testnet files in %q", testnet.Dir))
 
 	err := os.MkdirAll(testnet.Dir, os.ModePerm)