Comcast bridge mode static ip. CGA4332COM wireless router pdf manual download.


  1. Comcast bridge mode static ip. I'm hoping the 'psuedo' bridge mode will do what we need. how do i confirm my comcast modem is in bridge mode? Jan 20, 2023 · The Xfinity gateway has two modes. Does Comcast set this up? To activate and use your WiFi Extenders, your Comcast Business Gateway must not be in Bridge Mode, and your network must have the following settings enabled: An enabled and broadcasting WiFi network (i. It is a goofy piece of equipment (notice that they subnet backwards inverting the broadcast and gatway IPs of Nov 13, 2015 · When I changed mode modem on mode Bridge, my router received dhcp ip address from pool Comcast but how I understand my router need receive ip address 1. Because of Comcast's stupid rules, you cannot put the modem into bridge mode because it will wipe your static WAN IP and you HAVE to use their modem. So either have only the router connected to the gateway with static IP as wan or shut off gateway DHCP altogether. Feb 19, 2023 · What is the IP address for Comcast bridge mode? In Comcast business bridge mode, you can simply use the static IP address assigned to you by your ISP. I'm making this post to talk with other Comcast business customers to see if they have a solution to this horrendous system I'm stuck using. If you have a static then you would need a firewall with a WAN1 and a WAN2. Jun 18, 2022 · I didn't have to power-cycle the modem after turning on bridge mode, the Linux router detected the momentary interface down and immediately did a DHCP_DISCOVER and got a new (routable) IP address. It might help if you post some screen shots of the modem setup and also the pfSense WAN and Gateway setup pages. I have checked all of the usual suspects - bad cables, wrong ports, etc. Apr 7, 2022 · This link can help provide more information on what the difference between "True" vs "Advanced" - https://comca. Is there any way to access my ISP bridged modem using the static route settings? How to properly configure it? Since the ISP modem is in bridge mode, it has lost its routing capability and just acting as a modem. Internal traffic routes out just fine. Tried passive mode and bridged mode with Comcast, but still no success. DO NOT USE BRIDGE MODE Step three: with all of these settings configured, turn on your Comcast router, allow it to fully initialize, and then turn on your new router. I assumed I would have had to enter a static IP on the Ubiquiti WAN. Jun 2, 2020 · On the modem I have set it for pass-through mode (I think) - I have been told Bridge Mode won't work, and that to place it into pass-through mode I simply needed to turn off the Firewall altogether, "Disable Firewall for True Static IP" is checked, and disable DHCP (which was because of the static IP). 1 Jun 6, 2022 · Just make sure before you plug your router into the modem, the modem is in bridge mode first, and then plug your router in that way the IP address is there for the router to grab it from the modem. Sep 26, 2021 · Multiple Dynamic IPs in Bridge Mode I have a Comcast Business account and placed my modem in bridge mode. 1, so you are going to have routing issues if your LAN is on the same subnet. 1). Comcast offers bridge mode as a static IP feature to business customers. Mar 24, 2014 · Hi jaf1348. Your Firewall WAN port will get the external IP Nov 21, 2024 · In addition to the Comcast modem/router, do you have another router/firewall installed? If so, the Comcast modem should be set to “Bridge Mode” or “Pass-through mode” and your third party router should be configured with the static IP’s. We have a firewall behind the comcast router and need the public static ip passed directly to our firewall. Sep 26, 2017 · First, I could have the modem put in "Bridge Mode". What am I missing? Nov 22, 2024 · Getting new firewall to replace old one, setting it up behind Comcast cable modem? Business has one static IP address from Comcast. Feb 24, 2015 · You do NOT need to switch it to bridged mode. All working well with VLANS, LAN DHCP, wifi AP's etc. Then have the Comcast Business class router set as the gateway (this was the gateway IP they gave me on the static IP sheet they provided) petermiles (petermiles I turn off DHCP on the modem and turn on the Bridge mode, then on the MX input the static IP and gateway to the static of the comcast modem, subnet, etc etc. I know how it works well and I am an IT professional that does networking for a living. XXX device to valid external IP address (es) 2. Apr 24, 2020 · I need to know if the cradlepoint device functions in "pass-through" mode when the wan connection is active i. Dec 21, 2023 · This article describes how to configure IP Passthrough (Bridge Mode) on a capable Series 3 Cradlepoint router. Pass-through (be sure to disable the firewall for this address) is your only option. Take gear to client site and set up static IP with Comcast. Dec 20, 2022 · I've had a comcast modem in bridge mode for 20 years. 1 because this ip address is gateway for all other static ip address from my pool. Oct 13, 2015 · I spoke with a rep this morning and a request was entered to assign a static IP. Well, I'm having issue with that. In the public IP is passed directly to only one connected device, multiple connections to additional gateway LAN ports will create an IP conflict. Find out the differences between them and learn which option is best for your home network! Dec 5, 2013 · So, with Comcast not able to put the SMC into true bridge mode with static IP's on the account, is there a way to avoid double NAT with an internal router? Note that if you have a Static IP that the Cradlepoint cannot back that up and therefore may not work for you with the above connections. You can set router b up with a static IP address or as a dhcp client. When bridge mode is enabled, your router stops performing network address translation (NAT) and no longer assigns private IP addresses to devices on your network. Opnsense LAN is 192. If I set my Comcast router to "bridge mode", I get >80% packet loss pinging Comcast DNS or 8. Mar 25, 2019 · Comcast modem ---+----> Cradlepoint +----> Netgear The Comcast modem has to be set in bridge mode to fully allow incoming traffic to reach our router. Placing the device in disables all router functions of the gateway. Gateway of ISP modem: 10. Double NAT and 1-to-1 NAT sound horrible and make my DDNS Jan 16, 2018 · This matches my experience with Comcast and is expected. 1 on most gear in bridge mode. The only way that this would happen is if Comcast checks the modem and stop the static IP routes based on the modem setting. 100. Jun 1, 2018 · The problem you are facing is simple, when you setup the Comcast business gateway as transparent mode (This only applies if your contract includes Public IP) then your Comcast business gateway will only serve 1 IP (Contracts with Comcast only includes 1 Public IP). But the MX will fail and fall to a dhcp address with a gateway that has a subnet completely different than the static subnet. Jun 4, 2018 · Static IP addresses would not work with bridge mode but they do work in passthrough mode. This problem seems very similar to a thread posted on Reddit, but no solution was ever given: pfsense Comcast Business Internet DHCP Bridge Mode If I reboot the pfSense router the Sep 10, 2018 · Then input my Static WAN IP Subnet into the Subnet field. , you cannot have a separate WiFi network name and password for your Feb 3, 2020 · Comcast recently swapped out our old modem to a DPC3939B and now our VOIP phones (non-comcast) are acting up. Customer's that have a gateway with fixed static IP assignments cannot have the device put in . When I just use the modem I do a speed test with ping as low as 9-12ms. If you didn’t pay for and get assigned static IP addresses leave it as DHCP because the public address could potentially change. I was wondering what the specifications are for these IP addresses. Tonight I will be setting my comcast gateway device to bridge mode and connecting my own router. I need to have my modem in bridge mode and connected to my own firewall d Dec 4, 2020 · Bridge Mode and Static IP Before Comcast reads this and goes to reply PLEASE I already know with your system with a modem in bridge mode static IP is not possible on a device behind the modem. I’ve set the Comcast XB-7T gateway device to bridge mode, but the Fortigate is not pulling an IP address when the Wan interface is set to DHCP. When I then try to go to 192. I expected to. Where does that address come from? It doesn't get that internal IP address from Xfinity. We'll need to ping the static IPs to insure connectivity. The VOIP rep told me to check to make sure bridge mode was turned on for the new modem/ Jun 11, 2014 · Hi Stewartplumbing. This is fine for IPv6, but these installations need static IPv4. Aug 11, 2020 · Like with a Comcast business class modem, it gets more complicated as some of there modern equipment has no true bridge mode, but still allows you to use the modem in bridge mode, by using an external routable IP address to the Interface connected to it. Placing your I seem to keep having issues with Comcast business connections, which for whatever reason don't want to work when in bridge mode (directly binding a public IP on my equipment). Lots of misinformation out there, but the bottom line is we need a static IP address, need to use our own router apparently, and don't want the Comcast gateway blocking any traffic coming in. Then, you may connect and use your own router. Jan 16, 2018 · How To Configure a Comcast Business Class Static IP Address This tutorial explains how to configure a Comcast Business Class static IP address to enable remote access to network clients. I expected and confirmed with the CSR that I would be able to assign my static IPs once migrated. Also you really need to provide the router models with the level of help you have asked for. One WiFi network name and password (i. Step four: this is by far the most important step, insure that you set the port rules for your static IP under True static IP port settings under advanced. 3. Learn about Comcast Business static IP address guidelines, usage, and notation in this comprehensive overview. 8. Nov 21, 2024 · In addition to the Comcast modem/router, do you have another router/firewall installed? If so, the Comcast modem should be set to “Bridge Mode” or “Pass-through mode” and your third party router should be configured with the static IP’s. From the MX side login locally to the firewall via IP (not the dashboard) so you can set the static ip address info for your "wan 2". On the Comcast Network Static IP address cannot be assigned to a bridged device. Long story short I want bridge mode to work so that all traffic is sent on to my ASUS router and to allow that to handle all the traffic/forwarding/etc. In any event, I took the modem out the bridge mode and connected the server, 10. Mar 28, 2023 · @robmckenner. I am unab Jun 26, 2019 · I just acquire the Comcast business 1Gb modem/ router; So I wonder if someone can help me in telling me how can I put my comcast business modem/ router in bridge mode and provide static ip so I can have it go through a Sophos XG106 Firewall. Thank you! Jun 29, 2021 · We signed up for Comast Business internet and we want to place a Meraki MX65 Firewall Behind the Comcast Router. When you enable this feature, your cable modem functions as a simple pass-through device, allowing you to use your own router and firewall for all network traffic. Aug 29, 2024 · I need to configure our Comcast modem to allow access to our static IP addresses from within our local network. It's just a pass thru device in bridge mode. From the modem, I currently have three routers connected, each pulling different WAN IPs via DHCP (assuming dynamic since I don't have any static IPs in my account). I wanted this because a few weeks ago I found out that the Cradlepoint 4G backup does no Mar 28, 2023 · Hi, we have two office locations with Comcast business connections, and I am looking to use Unifi routers at each, including configuring site to site VPNs to our central office. Do I need to specifically tell Comcast to put IPv6 in passthrough mode Oct 31, 2024 · Business modem ver 2 (brand new) Modem Port 5 to Ubiquity UXG-Pro gateway ISP In (no other connections on modem) Issue; WAN IP inbound to modem is not the WAN IP address forwarded to gateway. If for any reason you cannot put your device into bridge mode please message me and I will assist. 1 (which it's always been). Jan 16, 2018 · If you have static IP’s, then you simply enter that in the WAN interface for whatever devices you have. x via DHCP from the Comcast Gateway which is expected. I'll connet another router to the Cradlepoint to have access also in case of blackout of the main line, in this way I can have always access to internet. 10. Aug 1, 2015 · Just assign the outside interface to one of your static ips and it will work. Me need connection all my devices between my router. Dec 3, 2022 · In bridge mode, one and only one device can be connected to the gateway, and I believe that device therefore gets your Comcast gateway DHCP IP address (not the static, even if you only have one). However, from what I have read, the two bridge modes on the CGA4131COM take away the option for static IPs. As a bonus you save a lot of money on inflated rental fees too. Apparently only dynamic IP addressing works in bridged mode. Those devices are dynamic by default and will receive one dynamic IP address from the network and pass it thru to the router or the first connected device. Can this be done prior to the static IP assignment? Mar 31, 2023 · I have Comcast Business and have had my pfSense Protectli router/firewall working flawlessly for about 2 years. I recently put my XB7 Gateway in bridge mode which seems to be doing what I want it to be doing (mostly) but in the process I've lost my static external IP address (which I think I pay extra for). Should the UDM-Pro WAN port be set to DHCP, PPPOE or fixed IP when using bridge mode on the Comcast router? Jan 27, 2025 · The bridge mode and IP passthrough mode both provide similar functionality where entire traffic is pass-through the gateway and the public IP is assigned to the customer's router behind the gateway. Jan 19, 2024 · The reason why I want a static ip is because I believe when I use the modem in bridge mode, it isn’t really in true bridge mode. Oct 1, 2010 · The bottom line is, there is no way to put this particular modem into conventional passthrough (bridge) mode where it will provide a routable public IP on the LAN ports. You will assign IPs statically to any equipment which plugs directly into the SMC. The last IP in the group of ips they gave you is your gateway (the individual IPs in the group are consectutive) Also, in the modem, Firewall tab check May 24, 2024 · Comcast box: Technicolor CGA4131COM set in pass-through mode according to Comcast's instructions (true bridge mode not allowed by Comcast if you have a static IP from them, which we have). Sep 6, 2023 · Management IP in bridge mode == usually ends up at 192. Jun 8, 2019 · I would like to use one of the assigned Static IP Addresses when the modem is in Bridge Mode, Kindly confirm which of the options would accomplish this (Bridge in Basic vs Advanced Mode) The desi See full list on handymanhowto. The best solution is to put the Comcast modem into Bridge Mode, bypassing all of its buggy and crappy software. We have a single IP with Comcast and Dec 6, 2024 · Correct me if I am wrong if you purchase a static IP from Comcast and want to statically assign it in your Meraki Firewall you need to put the comcast smb modem in bridge mode right? Has comcast stopped doing this?? Apr 26, 2022 · I've always put the Comcast modem in bridge mode with a static IP purchased from them. We do not need the routing or Wifi capabilities on the Comcast Gateway so I put it into bridge mode. But today I called Comcast support and asked them to set my SMC D3G-CCR to bridge mode, and the responding tech said that it required a I believe the first device connected to the gateway will get provisioned the static IP. Jan 16, 2018 · The Comcast Gateway was not in bridge mode at first so the WAN interface on the Ubiquiti got a 10. Apr 22, 2025 · Caution on using Comcast modems: mine spontaneously reset the local LAN (or Comcast did, which is worse), rendering my git server inoperable. CGA4332COM wireless router pdf manual download. May 2, 2025 · Setting up a gateway with Comcast, non-static I have a client that refuses to spend the $20 for a static IP through Comcast and they want me to install a fortigate 60f in their home office. Feb 1, 2014 · I have the same setup, SMC and /29 static IPs and I'm running my own firewall box inside. The 192. On the Comcastnetwork bridge devices are true "dumb modems" with all router functions completely disabled. Put an Ethernet from the Comcast modem (left four ports) to the WAN1 of your firewall. do static ip's from the primary comcast connection survive the cradlepoint node and route to the lan? Oct 31, 2021 · It seems you misunderestand what "bridge mode" does - it effectively turns a router into an AP/switch. You can put a pfsense firewall on the internal network, but it won't protect other things on the internal network, just whatever you put on the pfsense LAN port. Currently, the comcast device is set to 10. Oct 26, 2018 · HIm want to put Fortigate behind Comcast modem CG3000DCR in order to have Site to Site VPN tunnels - i have static ip address. If your gateway has been provisioned properly with your static IP, you should be able to configure any of your own devices Feb 1, 2018 · Pass Through or Bridged with Static IP Hello, We are a business in Southern NJ and have internet service with a static ip. 1 Gateway of ER605v2 (managed by OC200): 192. Jan 6, 2017 · Current setup: Cisco DPC3941B w/5 static IP addresses Goal: Use the DPC3941B as a bridge in order to use customer-owned firewall behind it and retain static IPs I've looked through a number of po Nov 2, 2017 · I did a static IP on one of our firewalls with Comacast Business router about a month ago and the tech from Comcast said to not put the router into bridge mode, to just set the static IP they gave me on the firewall’s WAN interface. 102. But when I put the modem in bridge mode and ping from the router my ping is as high as 23ms. I am no longer a Dec 30, 2021 · It's basically puts the modem in as close to bridge mode as Comcast will allow for a static IP configuration. Sep 17, 2020 · This morning I called into Comcast support and had a technician remove the static IP address on our service. Yes, if you do not set any type of bridge mode or pass-through mode with disabling DHCP the DHCP will be supplied. Set up a new network at my office with Netgate configured to WAN DHCP. Configure the firewall for the static IP. This could be different becuase you have more than one, but in my experience with static IP's and Comcast you need to put the gateway into a psuedo-bridge mode. If you use one of your assigned IPs on your OWN router (and of course the assigned gateway then the Comcast box will route packets properly. Jan 28, 2022 · Comcast WAN issue. Have recently had issues with site-to-site VPN on old setup, wa Feb 8, 2020 · Hello, I have a Sonicwall TZ350 that I'm attempting to install behind our Comcast Business gateway. setup 1-1 NAT assigning Public IP to the local IP for each machine Yes, you can use 1-1 Static NAT to enable any specific internal Comcast Gateway DHCP Server 10. Feb 25, 2015 · Funny, because a Comcast rep I spoke with earlier today says true bridge mode REQUIRES a static IP address. What I am unclear of is how to pass the IP address. Then it will simply pass the IP address to whatever is connected to the LAN ports on the modem (if I understand correctly). Second, I could get a static IP address and have that address passed through to the VPN router. st/3JdQCm4 So there can be issues when there is a static IP involved when you put the modem in bridge mode. We were given static IP addresses. Note: Any ethernet port can be used but only one device can be connected to the gateway while in Bridge Mode. The CBR-T is the newest Comcast cable modem used for Business services over copper coax cable that require static IPv4. use True Status IP Port Management, as opposed to Port Forwarding, to map the incoming traffic to the correct port Jul 4, 2024 · Comcast distinguishes between "passthrough" and "bridge" mode. 0. Whether I use the static IP we View and Download Comcast CGA4332COM manual online. Comcast supposedly places the equipment in bridge mode (or I do it myself) and without fail, I cannot reach the gateway IP after assigning the IPs in question. However, I need to setup IP passthrough mode on the CGA4131COM modem by Technicolor ver 2. Jan 23, 2017 · I have been assigned a static ip address with my business account and I am trying to install a new router. This combination in bridge mode allows our network to see the IP request and to route them through the network while not using the DHCP feature of the gateway. My bridge mode stopped getting a public ip/ipv6 addr Jan 15, 2016 · If you are leasing any static IPs from Comcast, then your gateway must be in regular non-bridge mode, to allow the static IP routing functions on the gateway to work properly. Sep 17, 2020 · We disabled bridge mode, got a NAT'ed IP, setup a standard 80:80 port forward on the Comcast gateway device and of course that worked. However, about a month ago Comcast performed a network upgrade and a few days later my internet quit. Are you saying that a power-cycle is required in order to be able to access the admin site? As to factory reset, I had to do that yesterday after my Internet access dropped for some unknown reason Sep 7, 2018 · Michelle said that the static IPs wouldn't route to my modem, if I put the modem in the bridge mode. It works, but there are some caveats to Are IP passthrough and bridge mode the same thing? Not exactly. To use a static IPv4 address, the modem must be placed in passthrough and not bridge. The issue is that the server only has internet connectivity in DCHP mode. If you assign a static it will route that IP to that device, if you do not it will give you a DHCP address. From what I understand Comcast uses RIPV2 to advertise the static to the Comcast modem, so true bridge mode won't work, needs a semi smart box because you can't peer with them. It seems like such a simple need Jun 26, 2019 · In the past, I put the Comcast device in bridge mode and then configured my router. Jun 22, 2018 · The modem is in bridge mode giving a static WAN IP to the SonicWALL. 101 and set the gateway at . Jan 2, 2021 · However, when I enable bridge mode on the modem and reboot, I can no longer reach my Netgear router on which I turned OFF AP mode and has a specifically assigned IP. Gateway mode, has WiFi enabled and passes out IP addresses to an internal network using it's built in DHCP server. Jun 28, 2017 · The IP address you assign to your Sonicwall is . Mar 3, 2014 · Confused by what I am reading. I am reading that if I have a static ip from Comcast, I can not have a modem in bridge mode. Jun 10, 2021 · We have a new Comcast business phone and internet account that works well. Jun 1, 2020 · True bridge mode cannot be used with a static IP and it sounds like static IP (s) are pretty vital to your current configuration, which may be an issue since Connection Pro will only work with devices that use a dynamic IP. So, you would need to setup a static IP with other range of IP to avoid conflicts. 2, Comcast box LAN is 192. Feb 2, 2015 · i have a static IP. Bridge mode is a setting on your router that acts as a "bridge" between your local network and your internet service provider (ISP). Aug 16, 2015 · Does not have router capabilities or support LAN DHCP Cannot have a fixed Static IP assignment" -- Comcast_John 12-15-2014 And other posts stated that only Comcast Support could turn on "true bridge mode". I was hoping to just put the Comcast Business Gateways into bridge mode and configure the Unifi routers with the static IPs, but is looks like that won't be possible. I have put the Comcast router in bridge mode, but have lost my static ip. Aug 4, 2017 · Even if the comcast modem is in bridge mode, it still has an accessible private ip, and that ip is 10. No changes are required to the Comcast business gateway. Great question! I am an Official Xfinity Employee. , your WiFi network cannot be disabled through the Gateway's Admin Tool (10. This configuration is called a double nat. Do I still have this IP address assigned to my account? If so, how can I configure my router to use it? Dec 22, 2019 · If you have a static IP, you can only use it in passthrough mode due to how the modem functions. This is due to our IP-Gateway needing its router function for customers to utilize a static IP. Nov 4, 2016 · So I'm setup with my DPC3939B in bridge mode. I've put the gateway in bridge mode and disabled the firewall. Aug 20, 2021 · Setting up a gateway with Comcast, non-static I have a client that refuses to spend the $20 for a static IP through Comcast and they want me to install a fortigate 60f in their home office. Jul 3, 2025 · Router A can see the server, and I have assigned it a static LAN address. From reading other forum posts i need to have the modem in bridge mode Jan 5, 2016 · Static IPs not working with new Business Internet service? We have a 5 static IP block associated with our new Comcast Business Internet service. com To do this on our network, you'll have to enable the Bridge Mode feature on your wireless gateway, which turns off its routing capabilities while leaving the modem capabilities on. e. 168. We need this for vpn connectivity and other services that require a static ip. Jul 11, 2015 · Yeah, bridge mode disables all routing capabilities of the gateway and essentially turns it into a regular retail cable modem. Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership. The key is that to use the static IPs you do NOT run in bridged mode. I disabled the entire firewal Oct 17, 2021 · Because of this, anyone needing static IPs on Comcast copper coax must get Comcast business service and must rent a Comcast-provided cablemodem/router. When I try to assign my Comcast static IP address to it, it cannot connect to the internet, though it is still visible on the LAN. I assume by "router" you mean gateway, correct? Is the Cisco only set to be access points? I no longer work for Comcast. Thus you should disable the dhcp server running on router-b and let router-a handle DHCP. However, from the SonicWALL’s LAN, I can still connect to the Comcast modem using 10. No matter the WAN connection is not picked up and can't get internet functioning. You were given a gateway IP and it is ALSO the static IP for the public side of the Comcast router. Is the modem providing a static IP right now? I no longer work for Comcast. I also need the router set to bridge mode. Again a big thank you to the Comcast support. You also have a block of static IP addresses even if you only have one usable static. 1 address is just done internally in firmware . 1 and I have several devices with static IP address in that subnet. Will Comcast Business Bridge Mode disable landlines? No, Comcast Business Bridge Mode will not be affecting your landlines capability other than the phone will be offline while the modem reboots. I will contact our Support Team to assist. The approximate down time is 5 minutes and As the description states, I cannot get my router (UDM-Pro) to receive my single static public IP from the Comcast business modem+router. Next I believe I would have to call Comcast Business Support to have them put the CBR-T into a kind of Bridge mode. Sep 16, 2015 · 1. 1, the IP address of the XFi modem when it's NOT in bridge mode, it opens up the XFi gateway page and I'm back on the XFi gateway. Mod Apr 4, 2014 · Unfortunately, if you have a static IP range the IP-Gateway cannot be set to bridge mode. But if I up mode Bridge on modem I can't this do. 159, directly to the modem. 1. You didn't say what you were using for equipment. That information can be attained from your ISP. Comcast uses specific routing technologies to allow customer-assigned static IPs onto their network, and bridge mode disables these technologies. Currently, our Comcast modem is in bridge mode because we are providing our own firewall to sit behind the modem. 7s4 ko78u5ltl vaoi ompqi cb8mk ecl3 nr6aj0 3u93 oultj zj6q