diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index 4f3d81f5d2..5c2ee99585 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -135,6 +135,10 @@ var (
 		Name:  "testnet",
 		Usage: "Ropsten network: pre-configured proof-of-work test network",
 	}
+	EllaismFlag = cli.BoolFlag{
+		Name:  "ellaism",
+		Usage: "Ellaism network: pre-configured Ellaism mainnet",
+	}
 	RinkebyFlag = cli.BoolFlag{
 		Name:  "rinkeby",
 		Usage: "Rinkeby network: pre-configured proof-of-authority test network",
@@ -542,6 +546,9 @@ func MakeDataDir(ctx *cli.Context) string {
 		if ctx.GlobalBool(TestnetFlag.Name) {
 			return filepath.Join(path, "testnet")
 		}
+		if ctx.GlobalBool(EllaismFlag.Name) {
+			return filepath.Join(path, "ellaism")
+		}
 		if ctx.GlobalBool(RinkebyFlag.Name) {
 			return filepath.Join(path, "rinkeby")
 		}
@@ -597,6 +604,8 @@ func setBootstrapNodes(ctx *cli.Context, cfg *p2p.Config) {
 		}
 	case ctx.GlobalBool(TestnetFlag.Name):
 		urls = params.TestnetBootnodes
+	case ctx.GlobalBool(EllaismFlag.Name):
+		urls = params.EllaismBootnodes
 	case ctx.GlobalBool(RinkebyFlag.Name):
 		urls = params.RinkebyBootnodes
 	case cfg.BootstrapNodes != nil:
@@ -883,6 +892,8 @@ func SetNodeConfig(ctx *cli.Context, cfg *node.Config) {
 		cfg.DataDir = "" // unless explicitly requested, use memory databases
 	case ctx.GlobalBool(TestnetFlag.Name):
 		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "testnet")
+	case ctx.GlobalBool(EllaismFlag.Name):
+		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "ellaism")
 	case ctx.GlobalBool(RinkebyFlag.Name):
 		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "rinkeby")
 	}
@@ -1012,7 +1023,7 @@ func SetShhConfig(ctx *cli.Context, stack *node.Node, cfg *whisper.Config) {
 // SetEthConfig applies eth-related command line flags to the config.
 func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 	// Avoid conflicting network flags
-	checkExclusive(ctx, DeveloperFlag, TestnetFlag, RinkebyFlag)
+	checkExclusive(ctx, DeveloperFlag, TestnetFlag, RinkebyFlag, EllaismFlag)
 	checkExclusive(ctx, FastSyncFlag, LightModeFlag, SyncModeFlag)
 	checkExclusive(ctx, LightServFlag, LightModeFlag)
 	checkExclusive(ctx, LightServFlag, SyncModeFlag, "light")
@@ -1078,6 +1089,11 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 			cfg.NetworkId = 3
 		}
 		cfg.Genesis = core.DefaultTestnetGenesisBlock()
+	case ctx.GlobalBool(EllaismFlag.Name):
+		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
+			cfg.NetworkId = 64
+		}
+		cfg.Genesis = core.DefaultEllaismGenesisBlock()
 	case ctx.GlobalBool(RinkebyFlag.Name):
 		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
 			cfg.NetworkId = 4
@@ -1203,6 +1219,8 @@ func MakeGenesis(ctx *cli.Context) *core.Genesis {
 	switch {
 	case ctx.GlobalBool(TestnetFlag.Name):
 		genesis = core.DefaultTestnetGenesisBlock()
+	case ctx.GlobalBool(EllaismFlag.Name):
+		genesis = core.DefaultEllaismGenesisBlock()
 	case ctx.GlobalBool(RinkebyFlag.Name):
 		genesis = core.DefaultRinkebyGenesisBlock()
 	case ctx.GlobalBool(DeveloperFlag.Name):
diff --git a/core/genesis.go b/core/genesis.go
index b6ead2250a..fbb2226e74 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -214,6 +214,8 @@ func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig {
 		return params.MainnetChainConfig
 	case ghash == params.TestnetGenesisHash:
 		return params.TestnetChainConfig
+	case ghash == params.EllaismGenesisHash:
+		return params.EllaismChainConfig
 	default:
 		return params.AllEthashProtocolChanges
 	}
@@ -320,6 +322,18 @@ func DefaultGenesisBlock() *Genesis {
 	}
 }
 
+// EllaismGenesisBlock returns the Ellaism genesis block.
+func DefaultEllaismGenesisBlock() *Genesis {
+	return &Genesis {
+		Config:     params.EllaismChainConfig,
+		Nonce:      64,
+		ExtraData:  hexutil.MustDecode("0x0000000000000000000000000000000000000000000000000000000000000000"),
+		GasLimit:   5000,
+		Difficulty: big.NewInt(17179869184),
+		Alloc:      decodePrealloc(ellaismAllocData),
+	}
+}
+
 // DefaultTestnetGenesisBlock returns the Ropsten network genesis block.
 func DefaultTestnetGenesisBlock() *Genesis {
 	return &Genesis{
diff --git a/mobile/geth.go b/mobile/geth.go
index 488a4150fc..43b19efcff 100644
--- a/mobile/geth.go
+++ b/mobile/geth.go
@@ -141,6 +141,12 @@ func NewNode(datadir string, config *NodeConfig) (stack *Node, _ error) {
 				config.EthereumNetworkID = 3
 			}
 		}
+		if config.EthereumGenesis == EllaismGenesis() {
+			genesis.Config = params.EllaismChainConfig
+			if config.EthereumNetworkID == 1 {
+				config.EthereumNetworkID = 64
+			}
+		}
 	}
 	// Register the Ethereum protocol if requested
 	if config.EthereumEnabled {
diff --git a/mobile/params.go b/mobile/params.go
index 45fe870ee3..c5ccd61a54 100644
--- a/mobile/params.go
+++ b/mobile/params.go
@@ -32,6 +32,15 @@ func MainnetGenesis() string {
 	return ""
 }
 
+// EllaismGenesis returns the JSON spec to use for the Ellaism network.
+func EllaismGenesis() string {
+	enc, err := json.Marshal(core.DefaultEllaismGenesisBlock())
+	if err != nil {
+		panic(err)
+	}
+	return string(enc)
+}
+
 // TestnetGenesis returns the JSON spec to use for the Ethereum test network.
 func TestnetGenesis() string {
 	enc, err := json.Marshal(core.DefaultTestnetGenesisBlock())