Is port 1998 (Cisco X.25) dangerous?

Port 1998 is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose with standard security practices.

Should port 1998 be open on my firewall?

Port 1998 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 1998 use?

Port 1998 (Cisco X.25) uses the TCP transport protocol and falls under the System & Infrastructure category.

:1998 (TCP)

Cisco X.25

Low Risiko

TCP — System & Infrastructure

Ikhtisar Port

Nomor Port 1998

Nama Layanan Cisco X.25

Protokol Transport TCP

Kategori System & Infrastructure

Risiko Keamanan Low

Rentang Port Terdaftar (1024-49151)

Apa itu Port 1998?

Port 1998 is used by Cisco for X.25 service access in IOS-based routers. X.25 is a legacy packet-switched WAN protocol that was widely used before Frame Relay and modern broadband. This port appears in legacy Cisco router configurations that still support X.25 connectivity.

TCP System & Infrastructure

Pertimbangan Keamanan

Port 1998 (Cisco X.25) diklasifikasikan sebagai risiko rendah. Layanan ini menggunakan enkripsi atau memiliki permukaan serangan yang minimal, sehingga relatif aman untuk diekspos.

Rekomendasi: Terapkan praktik keamanan standar. Jaga perangkat lunak tetap diperbarui dan pantau akses.

Port Terkait — System & Infrastructure

0 Reserved 1 TCPMUX 2 Management Utility 3 CompressNET 4 Unassigned 5 RJE 6 Unassigned 7 Echo

Istilah Terkait

Bandwidth Latency Packet Loss Ping Throughput ASN