Ip address for xfinity

Finding Comcast's IP address on Windows. Press the " Win " + " r " to open a run prompt. Type " cmd " into the input field and press enter to open a command prompt. Type " ipconfig | findstr /i "Gateway " into the command prompt and press Enter. Your default gateway will be on your screen.

Ip address for xfinity. It doesn't get that internal IP address from Xfinity. The 192.168.100.1 address is just done internally in firmware . It's just a pass thru device in bridge mode. Your Firewall WAN port will get the external IP address from Xfinity. Configure your firewall to handle the internal LAN network (s). If it's a complete disaster, you can always reset ...

I have exactly the same issue. Ever since Comcast performed work in my neighborhood over this past month, my IP address is now geo-located almost 250 miles away in Jackson, MS while I actually live in Bartlett, TN. Previously, the geo-location of the public IP on my modem was almost exactly on top of my home.

Comcast's website shows our IP range as from 96.xxx.xxx.193 - 96.xxx.xxx.197 with a gateway ip address of 96.xxx.xxx.198 and the subnet mask of 255.255.255.248 (as expected.) On the Modem's website at 10.1.10.1 under Gateway > Connection > WAN Status , it shows the "WAN IP Address (IPv4)" with the same value as the "Gateway IP Address" given on ...Jum. II 17, 1434 AH ... The SMC piece-of-junk that Comcast gives business customers doesn't actually route your IP addresses into your network.Second IP address for Arris S33 cable modem. Good morning! I used to have an XB6 cable modem before, but recently switched to a newer Arris S33 device. Old XB6 modem had two Gig Ethernet ports, both were functional, meaning device had 2 IP addresses provisioned. After Arris S33 was activated, only 1 Ethernet port is functional even though ...If you are using a router that has a MAC address cloning feature, you can clone a different MAC address into it. This will force a change of your Comcast assigned WAN / public IP address. No guarantees that the new address won't also have incorrect geo-data as it may be from the same block of IP's. YMMV.It's as if they configured the gateway interface primary IP address with 10.60.x.x, and then added a secondary public IP on it for the proper public gateway, so TTL responses come back with a 10.60.x.x response. This triggered blocks on my firewall due to both private and bogon rules being checked on the WAN interface.7. Keep your IP reputation clean. Overall IP reputation is key to successfully sending to Comcast. If Comcast, or another reputable organization repeatedly receives spam, spyware or other malicious attacks, phishing efforts or other deceptive emails from a certain IP address, Comcast is more likely to block future messages from that IP address.Rustyben. you can use 'IP' if you use the xfinity TV remote app. sign in, select the set top box from the icon drop down menu. select the 'remote' icon and use one of the 3 screens to have a smart phone remote control. remember, commands are always sent to a comcast server that then tells the set top box how to respond.Power down / unplug the modem and the router. Allow them to sit for 60 seconds unplugged. Plug in the modem first and allow to completely boot up until the indicator light (s) on it show a steady connection (lit steadily). Plug in the router and let it fully boot up and sync with the modem. Start the computer and allow it to completely …

Step 2. Directly connect your computer to the Comcast modem, click "Start," click "Run," type "CMD" into the Run window and wait for the command prompt to appear. Type "IPCONFIG" in the Run window and look at the IP address that is returned, as it will be the current IP of your Comcast modem. How to Login to a Comcast Modem. Advertisement. Step 3.For Xfinity router users, this process is made easy by entering the default Comcast router IP address, 10.0.0.1, into the web address bar. This will not be true for all routers, however. If you do not own an Xfinity router, enter your router’s IP address into the search bar instead. ... You can sometimes find the default router IP address on ...A Comcast Official Employee will assist you from there. If the option is not there, you will not be able to add an additional IP address. Please also note that even if your area has stopped offering multiple IP addresses, any previous add-on will be grandfathered in for as long as there are no changes made to the plan, account, or the equipment.Look up IP Address Location. If you can find out the IPv4 or IPv6 address of an Internet user, you can get an idea what part of the country or world they're in by using our IP Lookup tool. What to do: Enter the IP address you're curious about in the box below, then click "Get IP Details." Get IP Details. Windows 10/11. Press Windows and R key at the same time to open the Run box. Type CMD and press Enter. Type ipconfig/release in the Command Prompt window. Press the Enter key. Type ipconfig/renew. Press Enter. Type Exit and press Enter to close the window. Welcome to the Xfinity community! Our community is your official source on Reddit for help with Xfinity services. ... You asked for help with a new IP address or "resolving the security issue" pointing out that it looks like you found some internet site that allows you to tracert an IP address that you then put in your own IP address doesn't ...

Thank you for joining us here on r/Comcast_Xfinity, your official source on Reddit for help with Xfinity services.As members of the Digital Care Team here at Xfinity, we can help with a wide array of concerns including troubleshooting, billing, plan changes, and more.. Community Specialists will provide official support between the hours of 6:00am - 12:00am Eastern Time for issues that require ...I tried having xfinity send a signal to my modem to reboot, and still got the same IP address. I called support, and got a tech that could not understand that I was talking about my external IP address assigned by xfinity, and not an internal IP address on my local network. I own my modem and router; the modem is an Arris (Motorola) …When it comes to understanding the internet, knowing how to pull an IP address is a fundamental skill. An IP address (Internet Protocol address) is a unique identifier that is assi...Comcast Business Internet and Ethernet customers can view their static IP address information, including: Static IP number; CIDR Block Number; Gateway IP Address; Subnet Mask IP Address; This functionality is available to active users, as well as onboarding users, who have subscribed to a Static IP. Static IP is available only on Comcast Gateways.WiFi Boost Pod minimum firmware: 3.4.1.9+. In the Xfinity app, go to WiFi > View WiFi equipment > Select a Pod > Device Details to check your Pod's firmware. If you're using an Ethernet switch, some managed Ethernet switches can block the signals necessary to hardwire your gateway to your Pod.In the devices list on the Dashboard screen, tap the Lights icon. On the Lights screen, tap the Settings icon (gear at the upper right) for the light whose information you want to view. The Device Settings screen shows the Light's current status (on or off) and other information about the light. Thermostats: For instructions on viewing ...

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I am also getting the message "IP address Temporarily blacklisted" on my computer (iMac) and am not receiving any emails from the Comcast server. Some users have mentioned that they were able to resolve the issue by switching off their VPN, but I do not have a VPN and thus this does not apply to me.How to setup a static IP address on Xfinity. You'll need to follow a few simple steps to set up a static IP address on your Xfinity. First of all, go to the Comcast Business Gateway Admin Tool.; Now click on Connect Devices.; Find your device in the list and select Edit.; Now select the Reserved IP configuration and Save.; If your device is not on the list, select add a device with reserved IP.I'm in the S.F. Bay Area in the East Bay. After the last power outage, that caused a Comcast outage, I noticed my cable modem was assigned a different IP address than before (which is fine). I've noticed my IP address is associated with a city that's about 85mi from where I actually am. Your idea to replace theirs with your own router will get you a new ip right away, and if it can spoof mac address' you can change whenever you want. As a note, the xfinity router is using a dynamic IP, but the lease time is probably 8 days so you'll never get a different one (unless you unplug it for 8 days, and they aren't secretly tying the ... If this is done on a computer that is behind a combo modem / router gateway device or a stand-alone router, it will only serve to release and renew the LAN / private IP address that is assigned to the computer by the router's built-in DHCP server, not the WAN / public IP address that is assigned to the router / connection by the Comcast system ...when i use the xfinity port fowarding and select the correct host name it port forwards a .8 address?? the name "hanleyjaa" is reserved ip for 10.0.0.190 it even shows that on the xfinity website and local router but then decides to port forward a completely different address?? it should just let you input whatever local ip address you want, that would …

Official Reply. For the last week or so I have been unable to log onto either of my comcast.net email accounts. I usually use Thunderbird Mail and the Xfinity e-mail web site. The message is: Temporarily blacklisted IP Address - - - and I am thinking that I after updating my password, which works fine when I log onto the main Xfinity site to ...Dhuʻl-Q. 17, 1442 AH ... Wait for the geolocation provider to approve your request. If your request is approved, the amount of time it takes to see the correction varies ...Xfinity Modem suddenly connects itself to a Dep't of Defence IP address. Using a ARRIS SVG2482AC modem which normally is connewcted to 24.118.160.28 which is a comcast IP address. Every day about 3 times it is trying to connect itself to IP 21.139.146.230 and shuts down all my Internet for 2 minutes before reconnecting to the comcast IP address.Restart your Xfinity Gateway with the Xfinity app. If you rent a gateway, you can use the Xfinity app and sign in using your Xfinity ID and password. In the Xfinity app: Locate the WiFi icon. Tap the Troubleshoot option. Select Restart your Gateway . The process takes about 12 minutes to complete.Since Xfinity completed work in my neighborhood. My IP address has been in Wellington, CT while I am located in Manchester, NH and it is affecting several of my geolocation apps. Prior to the work, there was no issue. Not sure how to correct this issue, but seems to be a common one.One or the other of my computers will vanish from the network, sometimes for days or weeks at a time. A BBS friend has suggested that I try setting up static IP addresses for the laptop and PC. When I look in the router settings under "Connected Devices > Devices" I see that I have a choice between "DHCP" or "Reserved IP."Finding Comcast's IP address on Windows. Press the " Win " + " r " to open a run prompt. Type " cmd " into the input field and press enter to open a command prompt. Type " ipconfig | findstr /i "Gateway " into the command prompt and press Enter. Your default gateway will be on your screen.Apr 14, 2024 · Step-by-step Guide To Finding The Router’s IP Address. Every Xfinity Gateway Router has an IP address that allows you to access its admin panel and customize its settings. Follow these steps to find the router’s IP address: 1. Connect your computer or mobile device to your Xfinity Gateway Router either through Wi-Fi or an Ethernet cable. 2. My XB8 died (wouldn't power up). So, I picked up a replacement yesterday, and set it up in bridge mode, just like the previous unit. The problem is that my router is now getting assigned an IP address of 10.0.0.189, with a gateway address of 10.0.0.1. Addresses in the 10.x.y.z space are not publicly routable from the outside.Most Xfinity routers use either 10.0.0.1 or 192.168.1.1. Method 2: Use Your Computer (Windows) Open the Command Prompt by pressing the Windows key + R, typing “cmd”, and pressing Enter. In the black window that pops up, type “ipconfig | findstr /i “Gateway”” and press Enter.Ram. 25, 1441 AH ... I believe my problems stems from routers starting their IP address range from the 192.168.1.1 Default Gateway address. My router's addressing ...

The DNS lookup goes fine and finds the external IP address to my house. My brower sends the request to the EXTERNAL_IP_address:443 and the packet never gets to my server. It USED to work so we know we had port forwarding in the Xfinity router working correctly before.

The printer is able to find and connect to the network, and shows up as a connected device in the Xb7 gateway, but it has an IP conflict issue. Its unable to communicate, not useable, cant print. I then changed the Epson printer from DHCP to Reserved IP within the XB7 gateway, and made it 10.0.0.212 Then went into my printer …2nd - check that your router received an IPv4 address from Comcast. If it did not, make sure you have enabled dhcp client on the router. 3rd - check that your router has a pool of NAT addresses (192.168.0.0/24 for most people though 10.0.0.0/24 works as well) available and that dhcp server is enabled.Your IP address is a unique number linked to your online activity, somewhat like a return address on a letter. Whether you're checking emails, shopping, or chatting online, your IP address works tirelessly behind the scenes. It's assigned by your Internet Service Provider (ISP), allowing you to connect to the Internet through a network, whether ...IP Reputation Attacks. I have installed a NAS an enabled the NAS Firewall. I have port forwarded 5000 to the NAS. I am now getting several IP Reputation Attack messages from Xfinity Advanced Security, advising me to restart the NAS and disable any port forwards. The NAS needs the port forwarded in order to pr.Are you curious about the location of a particular IP address? Whether you want to track down the source of suspicious activity or simply want to understand where a website is host...A compromised Xfinity ID means there is evidence that someone other than the account owner or an unauthorized user may have accessed or learned the password of an Xfinity ID associated with your account. A compromised Xfinity ID may or may not have already been exploited, meaning someone may have used it to send spam, watch video content …The Comcast Business Xfinity hardware is set up a little differently from home use devices. You’ll find different credentials are necessary to access the main router dashboard. If you’re looking for non-business login instructions, visit our residential Comcast router login guide. Otherwise, keep reading!when i use the xfinity port fowarding and select the correct host name it port forwards a .8 address?? the name "hanleyjaa" is reserved ip for 10.0.0.190 it even shows that on the xfinity website and local router but then decides to port forward a completely different address?? it should just let you input whatever local ip address you want, that would …Raj. 4, 1443 AH ... Standard home Comcast HSI is dynamic. but it is 'sticky'. It is based on the MAC address of your router (or built-in router of a gateway.) It ...2nd - check that your router received an IPv4 address from Comcast. If it did not, make sure you have enabled dhcp client on the router. 3rd - check that your router has a pool of NAT addresses (192.168.0.0/24 for most people though 10.0.0.0/24 works as well) available and that dhcp server is enabled.

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Sunday, February 28th, 2021 4:00 PM. Closed. DHCP Reservations: "Failure! Please check your inputs." I am convinced that if the Arris modem/router were invented a few millenia ago, it would have been one of the plagues unleased on Egypt. First problem. The DHCP reservation system only allows DHCP reservations in the active DHCP address range.Updated: 6:40 AM EST December 19, 2023. USA, — The home and mobile internet provider Xfinity sent out a notice to customers on Monday evening saying the company was hit with a data breach back ...Find Xfinity's Router IP on Windows, Press Win + r a run prompt should open; Type cmd in the input and press enter A command prompt will open; Type the following in the …Xfinity also has no access to my wifi setup (since it is self-managed, not Comcast hardware) and any claims made after that point are irrelevant to the issue at hand. The same issue -- cannot connect to the internet, cannot issue a valid IP configuration for my client machine -- is occurring on a single computer connected via ethernet to the modem.XB3 bridge mode requires frequent IP /release /renew. I have the ARRIS TG1682G connected to my Windows 10 desktop Ethernet with onboard Realtek PCIe GbE Family chip. I'm not using an external router with this gateway. In bridge mode, I get frequent connection drops and must do ipconfig /release and /renew in order to restore operation quickly.A static IP address is more of a fix. You can move to business services by Comcast. No bandwidth cap, but you're playing more for having the quicker tech response times when down. They however offer static IP options. Comcast does not offer static IP addresses for residential accounts.Sep 15, 2023 · In the drop-down menu, select manual. Turn the IPv4 Toggle on, and set the static IP address. Specify the subnet mask, the subnet prefix, the default gateway, preferred DNS, and alternate DNS. If the DNS server isn’t responding on Comcast Xfinity, reset your router. Press save, then test the settings using the browser. When I was an AT&T user, I also need to provide an external port number other than 3389 to distinguish among different desktop computers at home using address like my_ip:ext_port. That way, the remote desktop packages can communicate with the specified home desktop on port 3389 with the aid of NAT service. But there is no such option in Xfinity. ….

Dhuʻl-H. 15, 1443 AH ... That's not actually an Xfinity issue. It's a 3rd party database issue. Xfinity does not map your IP address to a location, but a lot of other ...By default, the Comcast Gateway’s LAN is set to assign IPs to LAN devices between 10.1.10.0 and 10.1.10.255. This is a subnet of LAN IPs. Most routers will assign IP addresses to their own LAN between 192.168.1.0 and 192.168.1.255 (a separate subnet). ... To set up a static route rule, you must first know the destination IP address, the ...Yesterday I signed up for new Xfinity home internet service, and they said I had to download their mobile app in order to change my router settings. ... You should be able to determine the IP address of the device using ipconfig /all - Ramhound. Apr 7, 2023 at 3:02. Of course, thank you. I was trying the wrong address for the router. And the ...Click the "direct message" icon. Click the "New message" (pencil and paper) icon. Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line. Type your message in the text area near the bottom of the window. Using a VPN connection with Xfinity Internet is just one of the many benefits for Comcast customers. All xFi Complete customers can enable Advanced Security on the go through the Xfinity app and benefit from safe browsing and data protection (Xfinity VPN). For more information, see the Advanced Security on the go FAQs. The Forget Device in the Xifi does not always work for reserved IP's that were created in the old Admin app. I have a device with a reserved IP that shows up as connected (and is connected) in the XiFi app but shows as not connected in the old Admin app.If a computer is connected to the internet, it has a public IP address. This address is just like a home address: it gives information about where that computer is located. Additionally, it also gives information about who controls that IP address, which in most cases will be an internet service provider (ISP) such as Comcast, Verizon, Frontier ...CCCassandra. Thank you for joining us on the Xfinity Forums @macman218! We don't currently offer the option for a Static IP through residential. However, it would be available through Comcast Business services! They can be reached by calling 1-800-391-3000.1. CCTambrey. • 1 yr. ago. Hello u/Gabyfest234! Thanks for taking the time to reach out to us here on our subreddit. There is no way to permanently change your IP without getting …The machine 75.75.75.75 is one of the comcast name servers and port 53 is the DNS port. This should *not* be an attempted DoS and it is normal activity. Based on the rest of the report I believe your router IP is 73.145.223.125. ... You give nslookup the IP address and it will tell you the name associated with the IP address. Ip address for xfinity, Second IP address for Arris S33 cable modem. Good morning! I used to have an XB6 cable modem before, but recently switched to a newer Arris S33 device. Old XB6 modem had two Gig Ethernet ports, both were functional, meaning device had 2 IP addresses provisioned. After Arris S33 was activated, only 1 Ethernet port is functional even though ..., This appears to be a DNS propagation issue: I can still log in via the 69.181.111.111 address directly, and if I force the NoIP client to re-broadcast its DNS mapping, the mycomputer.noip.net resets to 69.181.111.111 within a few minutes. However obviously having to do this by hand defeats the purpose of dynamic DNS services like this so I'm ..., You might need your Comcast router’s IP address when accessing its web interface to configure it to set up port forwarding, change passwords, limit users, or kick out unwanted users from your network. …, Apr 19, 2024 · 1. Find IP address for Xfinity router on Windows. To locate the IP address of your Xfinity router on a Windows computer, follow these steps: Press the Windows key + R to bring up the Run dialog box. Enter “cmd” and hit Enter to open the Command Prompt. In the Command Prompt, type “ipconfig | findstr /i “Gateway”” and press Enter. , Enter the Destination IP. Enter the Subnet Mask of the destination IP. Enter your local LAN Gateway IP address (The LAN IP assigned to the router connected to the Comcast commercial gateway). Select Add. The new static route will be added to the static routing table. Repeat steps 1 through 5 to add additional static routes., So I just recently set up a pi-hole to block ads and wanted to change my dns server ip address to that of my pi-hole ip address so that all traffic on my network can go through my pi-hole but for some reasons, the app wouldn't allow me to change my dns server ip address., Like other wired or wireless routers, you can access Xfinity router admin using 192.168. 1.1 or access it using 192.168. 0.1. From there, you can access the smart …, I would like to be able to see what public/Wan ip address has been assigned to my modem/router when I am logged into to my account on the xfinity portal., Today I started getting" Temporarily blacklisted IP Address" message for my Comcast email addresses. I have been using Mac mail since 2011 on my computer and phone and never had this issue. I can't access email until change the password, I recieve the confirmation emails that it has been updated. I then change the Mac mail settings with the new ..., 7K Messages. 3 years ago. Unfortunately, we are unable to change the limitations of Port Forwarding in our Xfinity Wireless Gateway. These features were designed with security and automatic configuration in mind. The best way to manage customer Port Forward configuration is to use your own router and place the Xfinity …, If you have a router that has a MAC address cloning feature, you can clone a different MAC address in to it. This will force their DHCP server to assign a new / different public IP address to your connection.This is really the only sure way for an end user to do it but be advised that the new address may be from the same block and still suffer ..., The printer is able to find and connect to the network, and shows up as a connected device in the Xb7 gateway, but it has an IP conflict issue. Its unable to communicate, not useable, cant print. I then changed the Epson printer from DHCP to Reserved IP within the XB7 gateway, and made it 10.0.0.212 Then went into my printer software and ..., . With a computer, phone, or tablet that’s connected to your network, open a web browser and go to the Admin Tool at http://10.0.0.1 . If you’ve already changed your Admin Tool ID and password, log in with your information. Pro tip: This username and password aren’t the same as your WiFi name and password., Xfinity© Comcast 2024. Get online support for Xfinity products & services. Find help & support articles, chat online, or schedule a call with an agent., Here is the traceroute, but I don' t know what to do with it. I have changed the IP address to my house from comcast for my peace of mind. I have no idea what to do with this information, but it looks like it's being stopped at line 15. ..., For English and Spanish, give us a call at 1-800-xfinity For Chinese, Korean, Vietnamese and Tagalog call 1-855-955-2212. ... Xfinity Router IP Address. Xfinity. XHS QSG 0722 Xfinity Home User Guide. Xfinity. Xfinity XHS QSG 04.22 Alarm Permit Home Security System User Guide., Xfinity does not map your IP address to a location, but a lot of other companies do, and that data is used by others for a lot of purposes, some of them nefarious. When there are network issues or equipment changes, your IP address may change. The location is probably where the old block of IP addresses was., Check Device Details and confirm that the device is using an IPv4 address to connect to the network and not an IPv6 address. The Xfinity app can only support port forwards for devices using IPv4 addresses. If the device is dual stack, you should check with the device manufacture on how to disable the IPv6 or set the IPv4 as “Preferred”., Thanks for the work and reply. I reported it as suggested. I am a Board member and past president of Summit Public Radio and TV, Inc. ( "SPRTV" ) and therefore upset with Comcast blocking the site as SPRTV provides a service to the local community (rebroadcasting TV and FM radio signals into a Rocky Mountain valley) and is supported by contributions., XB3 bridge mode requires frequent IP /release /renew. I have the ARRIS TG1682G connected to my Windows 10 desktop Ethernet with onboard Realtek PCIe GbE Family chip. I'm not using an external router with this gateway. In bridge mode, I get frequent connection drops and must do ipconfig /release and /renew in order to restore operation quickly., I've since switched to a voice-enabled cable modem. I don't know exactly how they do it, but I'm betting the VoIP part has a separate IP address. For those of you who haven't used Comcast residential voice service or checked the specs, it's only VoIP to the modem or cable router. The phone jacks on the router or modem are plan old RJ11 analog ..., In the drop-down menu, select manual. Turn the IPv4 Toggle on, and set the static IP address. Specify the subnet mask, the subnet prefix, the default gateway, preferred DNS, and alternate DNS. If the DNS server isn’t responding on Comcast Xfinity, reset your router. Press save, then test the settings using the browser., Went to the WAN tab in my router (Asus RT-AC1200) settings. There was a line that said MAC Address with a blank box next to it and a button that said MAC clone. I clicked MAC Clone and my PCs MAC Address automatically filled in the blank box. Applied the setting and unplugged my modem for a bit. Plugged it back in and now I've got a new IP., Saf. 8, 1441 AH ... Hello, Comcast has a plan that allows home-based small businesses the option of getting a static IP address. From what I was reading most ..., Hard resetting the modem will assign pfsense a wan IP under the Xfinity router, so I believe this is most likely an issue with Xfinity. Setting up the modem and then using it as a wireless router is working and I switched the Ethernet to a switch so the network can use the Xfinity box as a router in the meantime. It states I have an ipv4 and ..., Try their app and web page, to see if there is a setting where you can request they change your modem's assigned IP address (I doubt it, but try). I think people tried even getting a brand new modem, or factory reset (wipes everything), doubt any of that works. Other than that the obvious easy answer is VPN. Reply., Many cable modems have a local IP address on the LAN. For example, 192.168.100.1 for an SB6121. This is for local management queries only. The modem is accessed from the Comcast by MAC address. and the local IP address is not visible on the Internet. The local CPE router is a separate functional block, with the WAN IP addresses set by Comcast ..., Reserved IPs, Network issues. I have the router model CGM4331COM, I do have 2 reserved IPs listed but I found out that certain devices that had reserved IPS are not listed asny longer. EG 10...10-12 are known reserved IPs but no longer show in the list also the devices still connect to the net but are now assigned DHCP (last IP 223 and 81)., In conclusion, changing your IP address on Xfinity Comcast is a simple process that can greatly benefit you in terms of privacy, security, and accessibility. With the various methods and tools available, you have the flexibility to choose the best option that suits your needs. By following the steps outlined in this article, you can easily ..., Open your browser and type "192.168.100.1" into the address bar. If this address fails to resolve, check your Comcast manual for the modem's IP address. Alternatively, press "Win-R," type "cmd ..., A static IP address is manually configured to prevent the IP address from changing as dynamic addresses do. A static IP allows an email, web or VPN server from a device behind the Comcast Business modem (Gateway), to access a static routable (publicly accessible) IP address. Comcast Business offers static IP addresses as a …, I enabled advanced security and it told me the thermostat was going to a known malicious site. The address listed was internal to my home network btw. I want to whitelist devices but there doesn't seem to be that option. I am incredibly uncomfortable with the idea that Comcast tech support has more control over my network than I do., Many cable modems have a local IP address on the LAN. For example, 192.168.100.1 for an SB6121. This is for local management queries only. The modem is accessed from the Comcast by MAC address. and the local IP address is not visible on the Internet. The local CPE router is a separate functional block, with the WAN IP addresses set by Comcast ...