Ports 135 and 445 closed but not stealthed?

[Arrow]

Hi,

According to https://www.grc.com my RT-AC66U is showing ports 135 and 445 as being closed but not stealthed. AI Cloud is off. USB applications are off. Firewall is enabled. I'm using firmware 3.0.0.4.354. I am port forwarding, but not these specific ports:




Port 135

Name:
dcom-scm
Purpose:
DCOM Service Control Manager
Description:
Microsoft's DCOM (Distributed, i.e. networked, COM) Service Control Manager (also known as the RPC Endpoint Mapper) uses this port in a manner similar to SUN's UNIX use of port 111. The SCM server running on the user's computer opens port 135 and listens for incoming requests from clients wishing to locate the ports where DCOM services can be found on that machine.

Port 445

Name:
microsoft-ds
Purpose:
Microsoft Directory Services
Description:
This port replaces the notorious Windows NetBIOS trio (ports 137-139), for all versions of Windows after NT, as the preferred port for carrying Windows file sharing and numerous other services.




Any ideas on why these ports are not stealthed and how to go about getting them stealthed?

Is this a firmware specific bug?

 

[RMerlin]

Most likely because your ISP is blocking those ports, so they never even reach your router.

 

[Arrow]

Most likely because your ISP is blocking those ports, so they never even reach your router.

Interesting. Yeah, I think they do filter 135. I didn't know about 445. I'll look into it.

Thank you very much

 

[Fraoch]

You wouldn't happen to be the same poster here, would you?

http://www.dslreports.com/forum/r28215648-Does-Teksavvy-or-Rogers-filter-ports-135-and-445-

 

[Arrow]

You wouldn't happen to be the same poster here, would you?

Nope, but thanks for the link.