CyberHunter
Local dataset, no network
// Other services

Port 435: MobilIP-MN

Port 435 is assigned by IANA to mobilip-mn (MobilIP-MN).

435

How mobilip-mn works

Other services
client:435mobilip-mnresponse client:435mobilip-mnresponse

The client sends a request to port 435 and the mobilip-mn service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Well-known (0-1023)
Category
Other services
01 Security

Is port 435 dangerous?

We have no specific security note for port 435. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 435

ServicePortTransportDescriptionReferenceUpdated
mobilip-mn 435 TCP, UDP MobilIP-MN - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 435, and is it reachable?

Linux

sudo ss -ltnup 'sport = :435'      # process listening on 435
sudo lsof -nP -i :435

macOS

sudo lsof -nP -i :435

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 435 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 435
netstat -ano | findstr :435

From another machine

nmap -p 435 -sV <host>
sudo nmap -sU -p 435 <host>
nc -zv <host> 435

Block it in the firewall

sudo ufw deny 435/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 435" -Direction Inbound -LocalPort 435 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 435 used for?

Port 435 is assigned by IANA to mobilip-mn (MobilIP-MN).

Is port 435 TCP or UDP?

Port 435 is registered for TCP and UDP.

Is it safe to open port 435?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 435 is open?

On Linux run "ss -ltnup 'sport = :435'", on macOS "lsof -nP -i :435", and on Windows "netstat -ano | findstr :435" to see the local process. From another machine, "nmap -p 435 <host>" shows whether it is reachable.

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