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 addresses and …
networking - Can’t Access Port-Forwarded Services on Frontier Arris ...
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 User
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 any settings.
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 this port.
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 ALG code to allow …
ipsec - Can someone help me understand ALG and VPN settings on my ...
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 understand these …
425 Unable to build data connection FileZilla, using windows 11 FTP ...
May 9, 2023 · If your router has an "ALG" ("Application Layer Gateway") section or a "L7 protocol" section, it might be possible to change which ports are handled as "FTP ports". For passive mode, …
Verifying the encryption cipher used in Kleopatra - Super User
Nov 29, 2018 · So AES is AES-128. Thanks for clarifying but how can I verify that is the cipher used in my encrypted file? Everything I've tried so far seems inconclusive unless I'm missing the obvious? I'd …
windows 10 - How can I use multiple port numbers for an external FTP ...
May 1, 2019 · Alternatively, check whether your router supports configuring the FTP "ALG" (application-layer gateway) on additional ports besides 21. If it does, mark all your additional sites (:2100, :2101, …
vpn - What does the OpenVPN 'auth' directive do? - Super User
Oct 28, 2023 · The Reference manual for OpenVPN 2.4 defines the auth parameter, which overrides this same parameter in the config file, as follows: --auth alg Authenticate data channel packets and (if …