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8 Messages
CGA4332COM - STATIC ROUTES ARE BROKEN
Hello,
Is there a detailed technical manual/document available for all configuration details of my CGA4332COM cable modem? If so, please provide a link to it.
I have an RFC1918 ip network block inside my site that I want to add a static route to my CGA4332COM for. When I try to add the static route, the CGA4332COM gives me this error:
Failed, please try again later.
Message: Gateway IP must be reachable. Netmask must match route address.
This is something I had working already, for about 3 months. Then, the night before last, the static routing just stopped working overnight. At this point all I can conclude is that Comcast made code or config changes to the router during an overnight maintenance window and it has broken what the CGA4332COM was previously configured to do.
I say this because while trying to troubleshoot why connectivity to my networks served by the static route had suddenly failed, I tried removing the static route from the CGA4332COM with the idea that I would remove and reinstall it to try and check/clear any sort of possible operational problem the CGA4332COM might have developed. I was unable to put the static route back in. I get the above error now, instead.
The ip address of the next hop gateway ip address I'm trying to point the static route to is a Juniper router connected to the CGA4332COM. The Juniper is receiving this ip address for itself via DHCP from the CGA4332COM. The CGA433COM is configured to keep that address reserved for the Juniper. I have proved that the ip address on the Juniper is working properly from/with and through the CGA4332COM by demonstrating that I can source successful traceroutes out to the Internet through the CGA4332COM from it, from the Juniper. This proves the CGA4332COM is able to communicate with the Juniper at that DHCP assigned/reserved ip address that the Juniper is using.
Here's the ip configuration of the CGA4332COM on its LAN side:
Lan IP Address: 10.1.0.1
Lan Subnet Mask: 255.255.252.0
DHCP Start IP: 10.1.0.2
DHCP End IP: 10.1.1.254
The 'Enable LAN DHCP' box is checked.
Here's the DHCP Reserved ip address from the CGA4332COM that the Juniper has:
10.1.0.2
Here's the IP network block (ie Destination Subnet) I need to get a functioning static route back into the CGA4332COM for:
10.1.16.0/20
Mask: 255.255.240.0
Gateway: 10.1.0.2 (This is the Juniper router, as I mentioned)
Here's traceroute output from the Juniper to Google's DNS server:
jpjackso@whsw1> traceroute no-resolve source 10.1.0.2 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8) from 10.1.0.2, 30 hops max, 40 byte packets
1 10.1.0.1 3.932 ms 2.156 ms 2.792 ms
2 96.120.120.9 11.555 ms 11.688 ms 11.897 ms
3 24.124.208.181 11.601 ms 11.437 ms 10.760 ms
4 162.151.191.161 16.000 ms 15.571 ms 15.704 ms
5 162.151.52.89 14.711 ms 15.477 ms 162.151.52.77 14.919 ms
6 96.110.42.193 20.683 ms 96.110.42.197 21.743 ms 96.110.42.193 21.538 ms
7 96.110.34.18 21.749 ms 96.110.34.22 20.577 ms 96.110.34.30 22.523 ms
8 * * *
9 * * *
10 8.8.8.8 23.226 ms 19.826 ms 21.120 ms
Additional question: - How come the connectivity 'Diagnostic Tools' in the CGA4332COM aren't explicitly named 'ping' tools, and how come they are unable to show working connectivity to the ip address of my Juniper?
How come the traceroute tool says it fails to be able to traceroute to my Juniper's ip address? How the traceroute tool gives this weird output when I tell it to trace to the CGA4332COM's own LAN ip address of 10.1.0.1?
Status: Complete !
1: 7,9,13 96.120.120.9 96.120.120.9
2: *
3: 10 96.120.120.9 96.120.120.9
4: *
5: *
6: *
7: 9,9 96.120.120.9 96.120.120.9
Comcast/Xfinity employees/engineers - WHY IS THIS BROKEN? WHY IS THIS HARD? IT'S NOT SUPPOSED TO BE THIS HARD.
I need capable Comcast CGA4332COM's software engineering help with this immediately. How can I get that?
-John




Comcast_Janelle
Official Employee
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33 Messages
13 days ago
Hey @user_6ae3dc , Thank you for visiting our official Xfinity Forums Community support page. We greatly appreciate you taking the time to reach out regarding your static routes. I would be more than happy to offer my assistance looking into this further for you. Please send us a direct message with your full first/last name, business name, complete service address (Including the city, state, and zip code), and phone number. By clicking the "message" icon in the upper right page of our forum page. Once you click on that, input our shared handle (Comcast Business) to send us a private message.
• Click "Sign In" if necessary
• Click the "Direct Message" icon in the top right corner
• Click the "New message" (pencil and paper) icon
• The "To:" line prompts you to "Type the name of a person". Instead, type "Comcast Business" there
• - As you are typing a drop-down list appears. Select "Comcast Business" from that list
• - An "Comcast Business" graphic replaces the "To:" line
• Type your message in the text area near the bottom of the window
• Press Enter to send it
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user_6ae3dc
New Contributor
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8 Messages
12 days ago
It's now been 16 hours since I posted this situation here, and since I was able to get a support ticket created for it.
As of yet, the ticket remains in the queue, status 'Assigned', waiting for someone to pick it up and acknowledge they're beginning to 'work' on it. The assigned status means the ticket has been assigned to a queue, not that it's been assigned to someone. It only gets to someone when they pick it up out of that queue.
Here's is the latest update I felt compelled to send to the direct message support people who are monitoring this forum. I wish I had a more positive way to communicate all this but at this point that's just not appropriate. This is unacceptable customer service. I'm sure none of the staff specifically involved at this level are responsible for that but they ARE the only ones with the potential to communicate it up the chain in the hopes of trying to incite executive management to do better.
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The behavior of the CGA4332COM for handling DHCP and IP address reservations is BRUTAL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! It is OBVIOUSLY doing a massive bunch [Edited: Inflammatory Language] behind the scenes of the UI for checking and deciding whether or not it really wants to accept an ip address reservation configuration request or not, or to remove one or not. It also deliberately hangs onto stateful information about all of that through reboot or power cycling. I'm not sure why it's behavior has been designed this way but whatever the reason, as much as whoever did it is happy with it or not, it's an atrocity to customers trying to simply configure addresses and behavior however they need it to be. Yes, I'm in front of this thing all weekend, day and night, until someone in the actual, capable, enabled top tier tech support level somewhere on that end goes out of their way to pick up my ticket and start helping me. My wife has a business to operate and a massive mortgage to pay back on the new building she built to operate it in. I have the expectation that I can buy and use Comcast's supplied equipment to provide her business with the capable and well designed network topology her business needs to operate smoothly and reliably. The operation, behavior, and configuration of this CGA4332COM hardware is complete and total [Edited: inflammatory language]. It's been so insanely narrowed down and dumbed down it's a total and complete failure at providing for that. The only thing it can do successfully is provide mindless connectivity for residential customers who just need to be able to connect their streaming TV to wifi. I'm not kidding. And if my 35 years of tech experience tells me anything, everyone on your end who's seeing my messages here, and my forum post, knows exactly what I'm talking about. I should not have to be looking at getting some piece of 3rd party gear to take over the function of this modem and putting this modem into bridge mode instead. All I need is straightforward control over what ip addresses and subnets my network needs to use, and nursery school static routing functionality. It's unconscionable this equipment and software has become this bad, and customer-hostile.
(edited)
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user_6ae3dc
New Contributor
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8 Messages
11 days ago
Sunday afternoon now. I'm done waiting for Comcast Business level support that has failed to show up.
It's now been 30 hours since I reported the problem. It's been at least 56 hours since Friday morning when I discovered the problem. Something was changed in the behavior of my CGA4332COM that caused it to stop forwarding traffic for locally entered static routes. Whatever was changed also now prevents those same static routing statements to even be able to be entered into my CGA4332COM. My business has a network topology that requires the CGA4332COM to forward traffic to locally entered static routes. It's now 3pm on Sunday afternoon and Comcast has left me sitting here, hanging out to dry. I've needed capable, enabled business tech support this ENTIRE weekend and all I've gotten is well intended attempts to tell me we all just need to be patient in waiting for someone to get to it. I can't wait any longer. I have to go into my local network equipment and reconfigure it to throw EVERYTHING onto the CGA4332COM's local subnet. I can't risk waiting any longer and having start of business arrive tomorrow morning with this failure of a product and support situation still crippling the use of our systems, applications, and even our VOIP equipment. It's time to start looking for another ISP solution and I'm not going to be quiet about letting my other contacts in the field know I'm ready to bail out from Comcast.
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user_6ae3dc
New Contributor
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8 Messages
11 days ago
Sunday, 5pm. Ticket/case status finally has changed from 'Assigned' to 'Working'. 10pm, Comcast still hasn't contacted me and there's no change in the problem behavior of my CGA4332COM. I have reconfigured my network equipment to dump every device there is onto the local LAN segment of the CGA4332COM. There's no other way to get the business up and running for the start of work tomorrow morning.
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user_6ae3dc
New Contributor
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8 Messages
12 hours ago
Well. someone at Comcast got my modem rolled back to firmware image:
CGA4332COM_8.1p8s2_PROD_sey
...and my static route capabilities are back and working again.
The broken firmware image was:
CGA4332COM_8.2p5s1_PROD_sey
Does anyone have any information about any of this?
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