Hello jeff.taylor 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). Get IP Geolocation service from IP2Location.com and ipdata.co. Unfortunately IPv6 on Comcast Business is not truely static. Know the answer? If you have more IP's then ports on the SMC gateway, you can add a switch. If so then your switch (or the SonicWall) may be a NAT router and you will not be able to assign IPs to devices connected to it. I have a 5 static IP (public/external IPs) package from Comcast Business Services and a Comcast Business IP Gateway. I am sorry you are having trouble with your IPv6 address. I am so sorry to see that we have made you feel this way as this is not what we strive for and we are sorry for the delayed response. All trademarks and registered trademarks are the property of their respective owners. On the LAN side I set it to Prefix Delegation. Copyright © 1999-2020 WhatIsMyIP.com® - Privacy Policy - Do Not Sell My Info - Terms & Conditions - Contact Us. Please try clearing the cache and cookies and trying once more. 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 (as expected.) If this is normal behavior to not enable a mapping and instead rebooting and not changing state, then it seems to me that Comcast Business Class is not much better than Xfinity service, just a **** of a lot more expensive and complicated. or maybe a few instantiated objects? Using the Unifi Controller UI, I am stumped on the following values. The easiest way I know of to utilize multiple external IP's is to set the SMC to bridge and assign the external IP's to individual routers. Common issues include one-way audio, dropped calls, failed transfers and deregistrations, among others. She won't even ping one of my public static IP addresses assigned to a VM running Linux to see if anything comes back. If you are running an internal mail server, you will need to make sure Comcast assigns the appropriate reverse DNS to the External IP or many mail servers will reject the emails you send. . So I get on the phone with Comcast Business Class tech support, and the tech refuses to help me because this is "a networking issue" (I thought it was an issue of Comcast's hardware engaging in unexpected behavior), tells me all the static IPs are active (which is what I would expect Comcast to say, since that did not look at my gateway, and anyway those public static IPs are live and in their routing table, having been activated). I am having issues setting up my static IPv6 Address from my Comcast Cable Modem. If I bypass the USG and connect directly to the Comcast Cable Modem, IPv6 works correctly. It all depends on what your final objective is. The Comcast IPv6 deployment state for its business customers is pretty sad given for them trying to be an IPv6 leader a few years ago. Login or sign up for an account to answer this question. With Comcast, if you specifically didn't ask for Static IP addresses when you had ordered your service from them, you are more then likely being issued a Dynamic IP from them. If you could include your name, service address, and account number (or phone number) I can help you in greater detail. You will have to set the machines you don't want to have static IPs to use DHCP meaning set them to acquire an address automatically. To assign an IP to a device that device has to be directly connected to the modems network. I know how frustrating this can be when there is no resolution that you are happy with and we can look into this for you. Seems like 1-to-1 NAT would do the trick with less effort and more elegance--I simply use the SMC gateway's 1-to-1 NAT tab to enter the public static IPs and map them to private static IPs of guest VMs. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. The NAT feature may be disabled by default and will need to be … Subnet Mask:  - The 248 designates that you have a /29 IP block (5 assignable addresses, Gateway: 96.XXX.XXX.198  - This is the gateway for your subnet. Using a true switch to extend that network is OK but it must not be set up as a NAT router. Hello, I am trying to respond to the private message I was sent but it says I have reached the 4 message limit. Comcast Static IPv6 Setup on UniFi Security Gateway 4P, Re: Comcast Static IPv6 Setup on UniFi Security Gateway 4P. To set this up where it will be less of a headache you should consider using Static IP addresses at every VPN End-point. Finally, the Comcast documentation talks about a "True Static IP Subnet"--what do they mean? Has anyone been able to get Comcast Business Static IPv6 working? One efficient thing about this approach on the face is that once the ESXi server is out in the open, so are all the guest VMs. For "WAN Default Gateway Address" however I see 98.xxx.xxx.1. If I bypass the USG and connect directly to the Comcast Cable Modem, IPv6 works correctly. 1) I don't want to buy hardware unless I really must. For example, the Cisco for your server and another separate router for the Guest network and another for the Macs. This is a bit more elegant than running two private networks--the only thing I need to look out for are duplicate IP assignments, and I have that potential issue boxed in with a bit of dividing my network into subnets.

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