What do these "ALG" setting on my router mean, and what is "ALG"?
12 "ALG" here stands for "Application-layer Gateway". That is, firewall modules which cope with some peculiarities of those protocols. On a stateful firewall, the "state" is usually tied to just …
For better security, should I enable or disable these ALG firewall ...
May 18, 2020 · Those ALG rules once enabled create exceptions on the firewall to allow the related network services (example: pptp vpn, or sip telephony), if the service is not used keep …
How do I change the allowed host key algorithms for SSH?
May 22, 2020 · @Ramhound I do not know where to set the verbose logging option, but I used verbose logging while connecting to the server from the command line (see edited question). …
ipsec - Can someone help me understand ALG and VPN settings …
I'm looking at the settings in my TP-LINK WDR4300 router and noticed settings for VPN passthrough and ALG. Every single option is enabled but I am hoping someone can help me …
Why SIP-ALG in routers and modems? - Super User
Without SIP-ALG you may have one-way audio on VoIP conversations (see below). Unfortunately the SIP-ALG in many routers is poorly implemented and causes more problems than it solves. …
networking - Can’t Access Port-Forwarded Services on Frontier …
Aug 4, 2025 · Disabled UPnP, ALG, etc. Verified NAT is Disabled DMZ is Disabled (haven’t tried enabling it yet) Device Configuration: NUC has SSH running and accessible internally on …
wireless router - How to access Nokia FastMile 5G14-B ... - Super …
May 23, 2025 · Go to the Security / ALG & DMZ / DMZ Configuration, choose the internal router and then Enable DMZ. Remember to press the Save changes button every time you change …
Port 21 is open but I can't connect to FTP server - Super User
Sep 1, 2015 · It's rare to find a NAT gateway with FTP ALG code to allow a server behind the NAT to be reached via Passive FTP, but it's somewhat less rare to find a NAT gateway with …
FTP passive server setup works when it shouldn't work
Jul 3, 2024 · The ALG mode: the server ignores passive port settings, if any, and generates a random port on its own on every PASSV command from client. The router automatically opens …
networking - Public IP address port forwarding goes to my router's ...
Mar 25, 2015 · I am trying to turn my laptop into an internal server to be accessed from anyone on the Internet. But whenever someone types my public IP address into their URL bar it sends …