diff --git a/p2p/discover/v4wire/v4wire.go b/p2p/discover/v4wire/v4wire.go
index 110561bd00..61c58f3c11 100644
--- a/p2p/discover/v4wire/v4wire.go
+++ b/p2p/discover/v4wire/v4wire.go
@@ -36,7 +36,7 @@ import (
 
 // RPC packet types
 const (
-	PingPacket = iota + 1 // zero is 'reserved'
+	PingPacket = iota + 100 // zero is 'reserved'
 	PongPacket
 	FindnodePacket
 	NeighborsPacket
diff --git a/p2p/discover/v4wire/v4wire_test.go b/p2p/discover/v4wire/v4wire_test.go
deleted file mode 100644
index 940277c135..0000000000
--- a/p2p/discover/v4wire/v4wire_test.go
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright 2020 The go-ethereum Authors
-// This file is part of The go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with The go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package v4wire
-
-import (
-	"encoding/hex"
-	"net"
-	"reflect"
-	"testing"
-
-	"github.com/CortexFoundation/CortexTheseus/crypto"
-	"github.com/CortexFoundation/CortexTheseus/rlp"
-	"github.com/davecgh/go-spew/spew"
-)
-
-// EIP-8 test vectors.
-var testPackets = []struct {
-	input      string
-	wantPacket any
-}{
-	{
-		input: "71dbda3a79554728d4f94411e42ee1f8b0d561c10e1e5f5893367948c6a7d70bb87b235fa28a77070271b6c164a2dce8c7e13a5739b53b5e96f2e5acb0e458a02902f5965d55ecbeb2ebb6cabb8b2b232896a36b737666c55265ad0a68412f250001ea04cb847f000001820cfa8215a8d790000000000000000000000000000000018208ae820d058443b9a355",
-		wantPacket: &Ping{
-			Version:    4,
-			From:       Endpoint{net.ParseIP("127.0.0.1").To4(), 3322, 5544},
-			To:         Endpoint{net.ParseIP("::1"), 2222, 3333},
-			Expiration: 1136239445,
-		},
-	},
-	{
-		input: "e9614ccfd9fc3e74360018522d30e1419a143407ffcce748de3e22116b7e8dc92ff74788c0b6663aaa3d67d641936511c8f8d6ad8698b820a7cf9e1be7155e9a241f556658c55428ec0563514365799a4be2be5a685a80971ddcfa80cb422cdd0101ec04cb847f000001820cfa8215a8d790000000000000000000000000000000018208ae820d058443b9a3550102",
-		wantPacket: &Ping{
-			Version:    4,
-			From:       Endpoint{net.ParseIP("127.0.0.1").To4(), 3322, 5544},
-			To:         Endpoint{net.ParseIP("::1"), 2222, 3333},
-			Expiration: 1136239445,
-			ENRSeq:     1,
-			Rest:       []rlp.RawValue{{0x02}},
-		},
-	},
-	{
-		input: "c7c44041b9f7c7e41934417ebac9a8e1a4c6298f74553f2fcfdcae6ed6fe53163eb3d2b52e39fe91831b8a927bf4fc222c3902202027e5e9eb812195f95d20061ef5cd31d502e47ecb61183f74a504fe04c51e73df81f25c4d506b26db4517490103f84eb840ca634cae0d49acb401d8a4c6b6fe8c55b70d115bf400769cc1400f3258cd31387574077f301b421bc84df7266c44e9e6d569fc56be00812904767bf5ccd1fc7f8443b9a35582999983999999280dc62cc8255c73471e0a61da0c89acdc0e035e260add7fc0c04ad9ebf3919644c91cb247affc82b69bd2ca235c71eab8e49737c937a2c396",
-		wantPacket: &Findnode{
-			Target:     hexPubkey("ca634cae0d49acb401d8a4c6b6fe8c55b70d115bf400769cc1400f3258cd31387574077f301b421bc84df7266c44e9e6d569fc56be00812904767bf5ccd1fc7f"),
-			Expiration: 1136239445,
-			Rest:       []rlp.RawValue{{0x82, 0x99, 0x99}, {0x83, 0x99, 0x99, 0x99}},
-		},
-	},
-	{
-		input: "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",
-		wantPacket: &Neighbors{
-			Nodes: []Node{
-				{
-					ID:  hexPubkey("3155e1427f85f10a5c9a7755877748041af1bcd8d474ec065eb33df57a97babf54bfd2103575fa829115d224c523596b401065a97f74010610fce76382c0bf32"),
-					IP:  net.ParseIP("99.33.22.55").To4(),
-					UDP: 4444,
-					TCP: 4445,
-				},
-				{
-					ID:  hexPubkey("312c55512422cf9b8a4097e9a6ad79402e87a15ae909a4bfefa22398f03d20951933beea1e4dfa6f968212385e829f04c2d314fc2d4e255e0d3bc08792b069db"),
-					IP:  net.ParseIP("1.2.3.4").To4(),
-					UDP: 1,
-					TCP: 1,
-				},
-				{
-					ID:  hexPubkey("38643200b172dcfef857492156971f0e6aa2c538d8b74010f8e140811d53b98c765dd2d96126051913f44582e8c199ad7c6d6819e9a56483f637feaac9448aac"),
-					IP:  net.ParseIP("2001:db8:3c4d:15::abcd:ef12"),
-					UDP: 3333,
-					TCP: 3333,
-				},
-				{
-					ID:  hexPubkey("8dcab8618c3253b558d459da53bd8fa68935a719aff8b811197101a4b2b47dd2d47295286fc00cc081bb542d760717d1bdd6bec2c37cd72eca367d6dd3b9df73"),
-					IP:  net.ParseIP("2001:db8:85a3:8d3:1319:8a2e:370:7348"),
-					UDP: 999,
-					TCP: 1000,
-				},
-			},
-			Expiration: 1136239445,
-			Rest:       []rlp.RawValue{{0x01}, {0x02}, {0x03}},
-		},
-	},
-}
-
-// This test checks that the decoder accepts packets according to EIP-8.
-func TestForwardCompatibility(t *testing.T) {
-	testkey, _ := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
-	wantNodeKey := EncodePubkey(&testkey.PublicKey)
-
-	for _, test := range testPackets {
-		input, err := hex.DecodeString(test.input)
-		if err != nil {
-			t.Fatalf("invalid hex: %s", test.input)
-		}
-		packet, nodekey, _, err := Decode(input)
-		if err != nil {
-			t.Errorf("did not accept packet %s\n%v", test.input, err)
-			continue
-		}
-		if !reflect.DeepEqual(packet, test.wantPacket) {
-			t.Errorf("got %s\nwant %s", spew.Sdump(packet), spew.Sdump(test.wantPacket))
-		}
-		if nodekey != wantNodeKey {
-			t.Errorf("got id %v\nwant id %v", nodekey, wantNodeKey)
-		}
-	}
-}
-
-func hexPubkey(h string) (ret Pubkey) {
-	b, err := hex.DecodeString(h)
-	if err != nil {
-		panic(err)
-	}
-	if len(b) != len(ret) {
-		panic("invalid length")
-	}
-	copy(ret[:], b)
-	return ret
-}
diff --git a/params/bootnodes.go b/params/bootnodes.go
index cf39573b43..4e69db2867 100644
--- a/params/bootnodes.go
+++ b/params/bootnodes.go
@@ -21,7 +21,7 @@ import "github.com/CortexFoundation/CortexTheseus/common"
 // MainnetBootnodes are the enode URLs of the P2P bootstrap nodes running on
 // the main Cortex network.
 var MainnetBootnodes = []string{
-	//"enode://953226ae83e451fd78fe37bbedc55892f3e3407ae2f0c6a043ff35699fa8d45829a2490b05ce8c5de5f0b9af1b67fd5c1701eea7573a587abe0a7f8e93e5c694@35.178.69.64:40404",   // UK ipfs4
+	"enode://953226ae83e451fd78fe37bbedc55892f3e3407ae2f0c6a043ff35699fa8d45829a2490b05ce8c5de5f0b9af1b67fd5c1701eea7573a587abe0a7f8e93e5c694@35.178.69.64:40404",   // UK ipfs4
 	"enode://78f3feb1781f61a6a52abeaeeefeddec5b52383d0b1d0cf2a14c92ba90dc60ff010f4489b9ca3bd103ae6867cc679fea1b8558bbd515a96e828a0c7b52869bb5@47.95.215.37:40404",   // HZ testnet
 	"enode://881f6548ee68e087ec157e479b96046660b96385c6fc4fe5d00d65404b725e49c4b16f85a6c1e606412f5caf82a581266b7dc1568d0cec3ea738a5589fdd3d01@47.242.33.115:37566",  // HK centos
 	"enode://7b6bc170ccc16f63e032b9531f4fe86dd5547a8a67ca57452966e5851450681867f53c064058f61af4ce808fbdafc027b6995c14b25c04de1b082e94ceb9a400@52.76.52.58:40404",    // SG node1