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-rw-r--r--cmd/bootnode/main.go14
1 files changed, 12 insertions, 2 deletions
diff --git a/cmd/bootnode/main.go b/cmd/bootnode/main.go
index abecac3d8..9b5ba1936 100644
--- a/cmd/bootnode/main.go
+++ b/cmd/bootnode/main.go
@@ -29,6 +29,7 @@ import (
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/p2p/discv5"
"github.com/ethereum/go-ethereum/p2p/nat"
+ "github.com/ethereum/go-ethereum/p2p/netutil"
)
func main() {
@@ -39,6 +40,7 @@ func main() {
nodeKeyFile = flag.String("nodekey", "", "private key filename")
nodeKeyHex = flag.String("nodekeyhex", "", "private key as hex (for testing)")
natdesc = flag.String("nat", "none", "port mapping mechanism (any|none|upnp|pmp|extip:<IP>)")
+ netrestrict = flag.String("netrestrict", "", "restrict network communication to the given IP networks (CIDR masks)")
runv5 = flag.Bool("v5", false, "run a v5 topic discovery bootnode")
nodeKey *ecdsa.PrivateKey
@@ -81,12 +83,20 @@ func main() {
os.Exit(0)
}
+ var restrictList *netutil.Netlist
+ if *netrestrict != "" {
+ restrictList, err = netutil.ParseNetlist(*netrestrict)
+ if err != nil {
+ utils.Fatalf("-netrestrict: %v", err)
+ }
+ }
+
if *runv5 {
- if _, err := discv5.ListenUDP(nodeKey, *listenAddr, natm, ""); err != nil {
+ if _, err := discv5.ListenUDP(nodeKey, *listenAddr, natm, "", restrictList); err != nil {
utils.Fatalf("%v", err)
}
} else {
- if _, err := discover.ListenUDP(nodeKey, *listenAddr, natm, ""); err != nil {
+ if _, err := discover.ListenUDP(nodeKey, *listenAddr, natm, "", restrictList); err != nil {
utils.Fatalf("%v", err)
}
}