Is port 1645 (RADIUS Authentication (old)) dangerous?

Port 1645 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 1645 be open on my firewall?

Port 1645 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 1645 use?

Port 1645 (RADIUS Authentication (old)) uses the UDP transport protocol and falls under the Security & VPN category.

:1645 (UDP)

RADIUS Authentication (old)

Medium Risiko

UDP — Security & VPN

On this page

Ikhtisar Port

Nomor Port 1645

Nama Layanan RADIUS Authentication (old)

Protokol Transport UDP

Kategori Security & VPN

Risiko Keamanan Medium

Rentang Port Terdaftar (1024-49151)

Apa itu Port 1645?

Port 1645 is an older, unofficial RADIUS authentication port used before the IANA officially assigned port 1812. Some legacy network devices and AAA servers still use this port for authentication. Network engineers managing older infrastructure may need to support both ports 1645 and 1812 simultaneously.

UDP Security & VPN

Pertimbangan Keamanan

Port 1645 (RADIUS Authentication (old)) diklasifikasikan sebagai risiko sedang. Meskipun layanan ini umumnya diekspos, pertimbangkan untuk menggunakan alternatif terenkripsi jika tersedia.

Rekomendasi: Jaga layanan tetap diperbarui. Pantau log untuk aktivitas yang tidak biasa.

RADIUS Authentication (old)

Ikhtisar Port

Apa itu Port 1645?

Pertimbangan Keamanan

Port Terkait — Security & VPN

Istilah Terkait