Any modem, gateway, router etc that can manage a network with e.g. DHCP has a DNS build in, else the network won’t know the hostnames.
Also, I consider any server/deamon that handles DNS-requests a DNS-server.
A typical modem today has this all, it’s not perse just a modem anymore.
What name would you give it? As this is a DSL-modem
Model Name : Vigor2865ax
Firmware Version : 4.5.2.2_MDM4
MDM4 is the Modem-driver I’m using, so yes, it’s a modem.
I can put it in Bridge-mode, then it’s a pure Modem.
Given the 60K concurrent session limit let alone other functions on Vigor 2865ax, it’s a good idea to offload the DNS resolver task to other servers, maybe some other tasks as well.
They function like a local network DNS-server, but for other requests they do forward, that is true.
You can give local devices names and the resolving is done by the routers internal DNS.
I had contact with DrayTek, they have a backup of my router-config and confirmed the performance drop (problems) when SPI is enabled.
They say it’s a decision they make to leave it on, I have no problems with that.
But I asked them to make note of it in the documentation and FAQ’s when there are issues like I have. They promised me to take that up with head-office and asked them to alter both FAQ and DOC’s so people are aware of performance changes when enabled/disabled.
But as they are moving towards DrayOS5 (mine is still 4), it may or may not change in the latest OS. I hope they do put it in there, as it’s clear the settings they pick are the problem but don’t specify what you need to change to make it route/nat faster.
Oh well, I did my best…it’s upto them to use the information I gave them. Not much more I can do.
At least I can alter it myself in the DrayOS, in FritzOS you can’t do anything and it simply reboots after enough load/nat’s. They do not even listen to the comments I made.
No, that’s just everyday language and has changed over time. The layman calls it a modem but as @ebahapo says in it’s function the “modem” part is just the smallest part today. Now it’s an internet gateway, VOIP server/telephony gateway, switch, access point, NAS, fax server, home automation gateway, network video recorder, in short some sort of all-in-one-box.
A “real” modem has no need for a webinterface or app to control it, a “real” modem is just a converter between digital and analog transmission. The most control needed was the Hayes command set to send the number to be dialed in case of dial-up modems. But your standard modem back then had no need for username/password, DNS server settings, port forwarding etc. That was all done in a separate computer or “router” behind the modem part.
I had a separate large white DSL “modem” back when DSL became the next big thing. That thing couldn’t be configured, it just took the telephone line and spat out ATM over an ethernet interface on a 10M interface. The connected computer or router had to then do any higher layers like PPPoE or PPPoA with authentication and any services you wanted like NAT for more machines in a network.
My first modem was an 1200bd, don’t remember the brand, but it was external via RS-232 25pin.
After those modems, up to 56K I moved to paired ISDN, getting 128K.
To switch later to the Alcatel ADSL Modem, sorry gateway/router/dnsforwarder/firewall/modem, was external and connected via 100mbit UTP cable and WEB-interface
I’m not a fan of internal cards, too much lightning strikes in the area over here.
Lost plenty hardware.
But any router that I use as a modem too is a modem for me…
I ran a BBS at the time as Internet wasn’t around for the public to use. Compuserve was way to expensive, so we all turned to Fidonet.
Those where the good days, where a netmail could take a week to arrive
I used a real modem-only device for a while when Telenet was my ISP (coax cable). It did have a very simple interface where you could see various statistics, like connection strength, transmission errors, logs, etc. Very few things could be changed. I then moved to fiber on another ISP and sold my Arris modem-only device on userbase.be for half the price to someone who wanted one but found 200 euro’s new too expensive for such a device. I bought that Arris modem on a German webshop as it was the only in the EU selling them… Werner Electronic was its name, I think.
It’s actually quite common for ISP in Hong Kong to supply a pure modem and sometimes an additional router (managed by user or ISP), instead of combining both together. Modem+router devices provided by ISP are often disliked by users as they are usually of very poor performance and limited functionality.
