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I need to a PTR record setup for our new service. Please let me know who to contact. ...
I need to a PTR record setup for our new service. Please let me know who to contact.
...Please private message me your full name, the name of the business, the full service address and...
Hi lsmith and welcome to the business forums.
I can help with your PTR record. Please private message me your full name, the name of the business, the full service address and the phone number associated with the account. Please also include your static information and where you want to point it to.
I have just moved our comcast service to a new location. The old and new each had 5 static IP...
I have just moved our comcast service to a new location. The old and new each had 5 static IP addresses that I had working at our old location with cascaded NAT settings.
Connected to the comcast CG3000DCR gateway is my Netgear FVS338 VPN router.
On my old comcast box I had 1-1 NAT set up for
aa.bb.cc.73 -> 192.168.1.99 (This is the Netgear FVS338 and used for VPN)
aa.bb.cc.74 -> 192.168.1.101
aa.bb.cc.75 -> 192.168.1.102
aa.bb.cc.76 -> 192.168.1.103
aa.bb.cc.77 -> 192.168.1.100
My Netgear FVS338 has similar 1-1 NAT set to direct those 5 addresses to computers on the LAN side in the 192.168.10 subnet and all was working just fine.
When we moved to a new location I had temporarily set up another VPN between our old and new locations with a TPLink router at the new location behind the CG3000DCR to handle the VPN
When we got to the point of moving our servers to the new building, I switched my 2 routers so that the FVS338 was at the new location. Since that CG3000DCR had the lan side set with the 10.1.10 subnet, I had to modify the 1-1 NAT on the FVS338 accordingly to match the 1-1 NAT that I set on the CG3000DCR:
dd.ee.ff.73 -> 10.1.10.5 (new address for the FVS338)
dd.ee.ff.74 -> 10.1.10.6
dd.ee.ff.75 -> 10.1.10.7
dd.ee.ff.76 -> 10.1.10.8
dd.ee.ff.77 -> 10.1.10.9
I had experienced a lot of problems getting my VPNs to connect reliably to the FVS338 for the 1st week, but now they seem to be connecting OK I have 1 location with a static IP and 2 others with dynamic IPs that are connected so my .34 public address does seem to be working.
I cannot seem to connect (from an outside IP address) to any of the other 4. As far as I can tell I have the same settings on the Comcast router as I had at my old location other than the different addresses. The strange thing is that a week ago for a period of about a half hour I was able to access all 5 of the public addresses (by using VNC to connect over my VPN to a remote PC and then trying to access via the public static IPs) and then without making any changes to either router it suddenly stopped working and has not worked since.
The comcast router shows that it has the /29 for 5 static addresses.
If I connect a computer directly to the comcast cable modem outside of my FVS338 so it is in the 10.1.10 subnet it can see all of the 1-1 NAT computers that I configured on the FVS338 so I know those are getting outside of that router.
I don't know what to try next. Could there be something on COmcast's end that is only giving me the 1 static IP address instead of the 5 even though my router is configured for 5? That woudl seem odd since the router's address is .78 and if only 1 was assigned I would have expected it to be .74
both the Disable Firewall and Disable Smart Packet Detection are checked.
Thanks for any help,
I replied to you with a private message and gave you a phone number that you requested more than a...
I replied to you with a private message and gave you a phone number that you requested more than a week ago, but it says you have not read that message yet.
I still cannot get any of my static IPs to work with 1-1 NAT except for my Netgear VPN router
Is there some place online to start a support request? The telephone menus, muzak and wait times are extremely annoying and I never got to talk with anyone after 10 minutes
...a private message (PM ) with account info for the new location, I will have our support team...
Hi stevet. The config info provided appears correct for 1 to 1 NAT. If you will send me a private message (PM ) with account info for the new location, I will have our support team investigate this issue.
We have a /28 block of static IP addresses on our Comcast Business account. I'd like to ge...
We have a /28 block of static IP addresses on our Comcast Business account.
I'd like to get things set up such that when one does a WHOIS lookup on these, our company's information is returned.
Currently, the lookup returns generic Comcast information.
Our DNS is hosted elsewhere (Network Solutions) and we currently don't have any DNS names pointed at these addresses.
What do I need to do, or who do I need to reach out to, to get this set up?
...request on your static information. Please private message me your full name, the full service address...
Hi DWS_Cliff and welcome to the business forms.
I would like to review your request on your static information. Please private message me your full name, the full service address and the phone number associated with your account. Please also include your static IP information and the details you would like them to display.
How do I assign multiple Static ips to multiple routers?
Please and thanks.
jvwjgames wrote: So then if I can't tell me how does Comcast or others do it on there routers add ...
So then if I can't tell me how does Comcast or others do it on there routers add multiple statics to multiple router as you see in traceroutes.
Consider the following example:
You have 4 routers. You would like to use 4 corresponding static IPs from Comcast on these routers. What you would do is, on each router's configuration page, set static IPs on the WAN interface, and enter the Comcast-provided values. So if Comcast gives you the static IP range 220.127.116.11-50.252.60-13, you would configure router A with 18.104.22.168 on the WAN, router B with 22.214.171.124 on the WAN, router C with 126.96.36.199 on the WAN, and router D with 188.8.131.52 on the WAN. All of the routers will have the same subnet mask, default gateway, and DNS servers, so here each router will have a subnet mask of 255.255.255.248, default gateway of 184.108.40.206, and DNS servers of 220.127.116.11 and 18.104.22.168. This way, you can have separate networks behind each router, and each router is using 1 of your 5 static IPs.
Below is a very crude image:
EDIT you ask how Comcast & others will sometimes report multiple IPs for the same host, as you see in traceroutes..... I don't think the Comcast business gateways will allow multiple IP addresses on one device.... I believe they enfore a "1-IP-per-device" policy.
Sorry - I haven't seen this in the boards. Can I configure our Comcast router to open a DMZ o...
Sorry - I haven't seen this in the boards. Can I configure our Comcast router to open a DMZ or do I need to order static IPs? I just need one system that I can get to from the outside world.
I have the problem with DMZ too. It seems that the DMZ feature on Gateway SMCD3G doesn't work. Cou...
I have the problem with DMZ too.
It seems that the DMZ feature on Gateway SMCD3G doesn't work. Could you help me?
I did enable that.
I did input one LAN device.
But the device can't be accessed neither via internet, nor LAN with public IP.
Welcome BruceCampbell. DMZ can be opened on the router by accessing the Firewall Tab and then...
Welcome BruceCampbell. DMZ can be opened on the router by accessing the Firewall Tab and then the DMZ tab. As you state that you need remote access to only one system, having a fixed static IP is the optimal choice as this will eliminate any potential conflict with rest of your network. Alternately you can create a port forwarding rule for the device as this will also remote access capability while maintaining your network integrity.
Hello, I have some questions on how to set-up Reverse DNS, PTR and MX records for our private Excha...
Hello, I have some questions on how to set-up Reverse DNS, PTR and MX records for our private Exchange email server sitting behind a Comcast Static IP address.
We run our own Exchange server on a private network behind static IP address: 22.214.171.124. Our domain is www.estarmail.com and mail.estarmail.com for email. I have registered these domains and set up Reverse DNS, PTR and MX records at REGISTER.COM our registrar.
When I go to DNSQUERY.COM I get no results for A, CNAME, MX and TXT queries. The DNS and PTR query properly return estarmail.com for my IP. The reverse DNS query returns an undefined (???) PTR to my domain. The WHOIS query returns Comcast Business Communications, LLC.
What can I do to get the various missing or incorrect DNS records set up so they will resolve properly to our static IP and domain?
Office: +1 (773) 697-8283
Cell: +1 (847) 372-2381
A domain registry like register.com is only authoratative for forward records like A records and MX...
A domain registry like register.com is only authoratative for forward records like A records and MX records. You can only setup PTR records with the hoster of the IP address block - in this case Comcast.
The by the book process is contact Comcast on the phone Mon-Fri 8-5pm Eastern time.
Incidentally your PTR isn't correct. Take a look at the following:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
Default Server: UnKnown
> set type=mx
estarmail.com MX preference = 0, mail exchanger = mail.estarmail.com
estarmail.com nameserver = dns142.a.register.com
estarmail.com nameserver = dns167.b.register.com
estarmail.com nameserver = dns223.c.register.com
estarmail.com nameserver = dns249.d.register.com
mail.estarmail.com internet address = 126.96.36.199
dns142.a.register.com internet address = 188.8.131.52
dns167.b.register.com internet address = 184.108.40.206
dns223.c.register.com internet address = 220.127.116.11
dns249.d.register.com internet address = 18.104.22.168
> set type=a
> set type=ptr
22.214.171.124.in-addr.arpa name = estarmail.com
(should be mail.estarmail.com)
91.70.in-addr.arpa nameserver = dns104.comcast.net
91.70.in-addr.arpa nameserver = dns102.comcast.net
91.70.in-addr.arpa nameserver = dns103.comcast.net
91.70.in-addr.arpa nameserver = dns105.comcast.net
91.70.in-addr.arpa nameserver = dns101.comcast.net
dns101.comcast.net internet address = 126.96.36.199
dns101.comcast.net AAAA IPv6 address = 2001:558:fe23:8:69:252:250:103
dns102.comcast.net internet address = 188.8.131.52
dns102.comcast.net AAAA IPv6 address = 2001:558:1004:7:68:87:85:132
dns103.comcast.net internet address = 184.108.40.206
dns103.comcast.net AAAA IPv6 address = 2001:558:1014:c:68:87:76:228
dns104.comcast.net internet address = 220.127.116.11
dns104.comcast.net AAAA IPv6 address = 2001:558:100a:5:68:87:68:244
dns105.comcast.net internet address = 18.104.22.168
dns105.comcast.net AAAA IPv6 address = 2001:558:100e:5:68:87:72:244
Forward and reverse records only exist for hostnames not domains.
A domain (estarmail.com) can have a MX record and it can have an A record but the MX
record is only used for routing mail. The A record is not. CNAME records are not used
for routing mail at all. Setting a PTR (reverse DNS) record to point to a domain instead of
a hostname is nonsensical.
Thank you, I have updated the PTR record at REGISTER.COM and opened a ticket at Comcast.
Good Afternoon, We are currently running two e-mail servers and I would like to see if we ...
We are currently running two e-mail servers and I would like to see if we can get reverse DNS set up for both of them.
...message me your full name, the service address, the phone number on the account, the statics in...
I can certainly help with your reverse DNS request. Please private message me your full name, the service address, the phone number on the account, the statics in question and where they should be pointing to.
We need to have a PTR record created for our email server. What are the appropriate steps to ...
We need to have a PTR record created for our email server. What are the appropriate steps to get this done?
...you. Please private message me your account number, the name of your business, the static IP address...
Hi Damion and welcome to the business support forums.
I can make the DNS request for you. Please private message me your account number, the name of your business, the static IP address and the name service it should be pointing to.
Hi, Im not sure if I am sending this to the correct group/location? Who would I speak to ...
Im not sure if I am sending this to the correct group/location?
Who would I speak to about getting PTR Records setup for my static IP's /29 ?
Hello Metorra, Please send me a private message with your account number and...
Please send me a private message with your account number and requested entry.
Works great, thanks much. Sorry for the delayed response.
I reset my modem because I'd forgotten the password. Now it's pulling down something other th...
I reset my modem because I'd forgotten the password. Now it's pulling down something other than my account's static IP. Can this be set correctly for me? What do I need to do?
...would like to review your gateway and static IP. Please private message me your account number...
Hi Rx and welcome to the support forums.
I am sorry to hear about your experience. I would like to review your gateway and static IP. Please private message me your account number, your business name, your previous static IP address and the new one you have now.
On 9/12/17 we experienced a strange issue with our Comcast Business service with Static IP, which w...
On 9/12/17 we experienced a strange issue with our Comcast Business service with Static IP, which we have had for years. We have multiple servers in house hosting our business DB and a website with 30 employees and other external users and use a SonicWall firewall with VPN. Initially we were experiencing some major fluctuations in our Internet speed. I called Comcast and the tech (Edward) said his information showed that our modem has been up for 52-days and recommended we reset it. He recommended powering it down for 10-seconds and then powering it back up. We have done this before during business hours and it only temporarily interrupted our Internet connectivity, so we were okay to do it again. With Edward on the phone we powered down the Comcast modem and 10 seconds later powered it back up. This time we lost all inbound and outbound connectivity. Of course, Comcast (Edward) said everything was fine on their end. I had to end the call so I could figure out what was going on. We power cycled all of our switches, including our SonicWall appliance, with no luck. I eventually plugged directly into the Comcast modem and tried to access the gateway we were using and was unable to. I then changed my setting to DHCP on my laptop and got connectivity. I checked the gateway and it was totally different from what we were using. I then temporarily changed our SonicWall appliance to DHCP for outbound connectivity. The disruption lasted for an hour. I called Comcast (Carol) and once again was told everything was fine on their end. I told her what our Static IP was and she said it did not match with what they have on file. She emailed me what Comcast shows as our static IP information, which was totally different from what we have been using for everything. Meanwhile, our Comcast modem is 7-years old. Early on I questioned whether or not we should replace it. Comcast (Carol) said I could take it to one of there customer centers and replace it. I told her we are a business and can't just close down for a few hours to do this - amazing!
How the static IP address that we have been using for years suddenly changed - no one will say. Very disappointed.
Hello cmchittom and welcome to the support forums.
I can certainly assist with your static IP. Please private message me your account number and the name of your business.
Thanks, Phil. I ended up calling in to the support line last night, and got squared away in a...
Thanks, Phil. I ended up calling in to the support line last night, and got squared away in a few minutes. Mark this one off your list.
Glad you got this addressed. I'll have that marked off right away. Please let me know if you need a...
Glad you got this addressed. I'll have that marked off right away. Please let me know if you need anything.