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- How do i secure my at and t internet connection software#
- How do i secure my at and t internet connection Pc#
- How do i secure my at and t internet connection mac#
- How do i secure my at and t internet connection windows#
Repeat these steps if nothing happens with any other 192.x.x.x addresses that were listed when you had typed in the arp -a command. if one of the addresses was 192.168.1.1 type in and hit enter). Write down all IP addresses listed that are in the 192.x.x.x range (i.e.
How do i secure my at and t internet connection mac#
The arp command should show the mac addresses and associated IP's of all interfaces connected to your computer including the IP and Mac of the AT&T DSL modem.
How do i secure my at and t internet connection Pc#
One way you can use to determine the web admin IP of your AT&T DSL modem if it has one, is to hook up the DSL modem directly to one computer via ethernet reboot both your PC and modem to be on the safe side (make sure that the TCP/IP connection of the NIC card you are plugged into on your computer doesn't have any static IP information configured in it) and then drop to a command prompt by going to start->run (possibly may have to go to start->all programs->accessories on Vista) and typing in cmd (may have to run cmd in admin mode on vista which requires right clicking cmd and clicking run as admin) and at the dos prompt type in arp -a and hit enter. If you reset the modem to place it in bridge mode, all this non-sense of changing the IP range should be unnesscassary. I suspect the AT&T DSL modems likely have a pin hole reset similar to the ISP I work for and can likely be set into bridge modem using the pin hole reset. Newer DSL modems are capable of doing DHCP and PPPoE. Most older DSL modems are bridge mode only and do not have advanced firmware to allow them to do DHCP and PPPoE.
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Bridge Mode is when your DSL modem does not do the PPPoE authenticating or DHCP functions. I suspect AT&T's DSL modems probably can be reset similarly so that they act in "Bridge Mode". If you then connect a router to the modem after hard resetting it (pin hole reset), you can then plug a router into it and let the router do the PPPoE authentication and do dhcp instead of the DSL modem. it disables the PPPoE authentication and DHCP server on the modem). Turning off the DHCP server on the DSL modem and hard resetting it using the pin hole reset on it causes the modem to act as a standard dsl modem (i.e. When these second type of DSL modems are setup to do PPPoE they do have a DHCP Server (which can be turned off by logging into the interface of the modem our modems like most routers have a web based interface that uses a non standard Private IP to connect to it i.e.
How do i secure my at and t internet connection software#
We also have a brand of modem that has "router-like" software built-in to it. The basic modems would not have the issue with IP conflicts due to DHCP servers built-in to the DSL modem since these modems do not have any firewalls or DHCP servers built-in and cannot connect without external software.
How do i secure my at and t internet connection windows#
your PC such as the PPPoE client built-in to windows or in older versions of Windows a client such as RasPPPoE, enternet 300, or winpoet). Some of our modems do not do any routing or assigning of DHCP at all they require DSL software on the client side (i.e. First off, the ISP I work for has several different models of DSL modems. I find these threads rather interesting and how complicated people are making things sound. Of course the simplest solution is the buy a DSL modem with a built-in wireless gateway in the first place. They are not equipped to handle wireless router questions. By putting the router on a different subnet, you basically separate two fighting territorial wolves and give them each their own space to control.Ī word to the wise, DO NOT call your DSL technical support. I changed the router's IP address to 10.0.0.1 and all was well, but pretty much any address that wasn't 192.168.1.x would have worked.
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So basically the situation was two DHCP servers fighting over the same range of addresses. Well the DSL modem's address happened to be in the range of assignable addresses for my router, and vice-versa. In my case, the router was at its default 192.168.1.1 and the DSL modem was at 192.168.1.254. The problem with hooking up a router in-line with your DSL connection is that typically a router is also a DHCP server, and its IP address is usually in the exact same subnet as the DSL modem. It also typically has a DHCP server so I can assign an IP address to your computer. It has its own IP address and configuration page if you were to type that number into the address bar of a browser. Unlike a cable modem, a DSL modem is a gateway, a pseudo-router in its own right. Yes, the answer is to change the IP address of your router, and here's why?