diff --git a/cmd/devp2p/dns_route53.go b/cmd/devp2p/dns_route53.go
index 21a32f941..f93704e3c 100644
--- a/cmd/devp2p/dns_route53.go
+++ b/cmd/devp2p/dns_route53.go
@@ -411,6 +411,10 @@ func newTXTChange(action, name string, ttl int64, values ...string) types.Change
 
 // isSubdomain returns true if name is a subdomain of domain.
 func isSubdomain(name, domain string) bool {
+	// Normalize strings for comparison
+	name = strings.ToLower(name)
+	domain = strings.ToLower(domain)
+
 	domain = strings.TrimSuffix(domain, ".")
 	name = strings.TrimSuffix(name, ".")
 	return strings.HasSuffix("."+name, "."+domain)
diff --git a/cmd/devp2p/nodesetcmd.go b/cmd/devp2p/nodesetcmd.go
index 6fbc185ad..4b73987c9 100644
--- a/cmd/devp2p/nodesetcmd.go
+++ b/cmd/devp2p/nodesetcmd.go
@@ -230,6 +230,10 @@ func ethFilter(args []string) (nodeFilter, error) {
 	switch args[0] {
 	case "mainnet":
 		filter = forkid.NewStaticFilter(params.MainnetChainConfig, core.DefaultGenesisBlock().ToBlock())
+	case "PulseChain":
+		filter = forkid.NewStaticFilter(params.PulseChainConfig, core.DefaultGenesisBlock().ToBlock())
+	case "PulseChainTestnet":
+		filter = forkid.NewStaticFilter(params.PulseChainTestnetConfig, core.DefaultGenesisBlock().ToBlock())
 	case "goerli":
 		filter = forkid.NewStaticFilter(params.GoerliChainConfig, core.DefaultGoerliGenesisBlock().ToBlock())
 	case "sepolia":