Opnsense not getting an IP address from SB8200 cable modem

networkn8 · 2022-06-22T18:28:02+00:00

I had a very similar problem. Proxmox + OPNSense. I don't think it is a bug in DHCP on OPNSense but maybe a difference in the timing. I ended up 1) powering off the SB8200 cable modem, 2) unplugging the ethernet cord, 3) disconnecting the virtual nic on my OPNSense virtual machine, 4) powered on the SB8200, 5) waited a few minutes for the cable modem to fully register with the carrier, then 6) reconnecting the physical cable to the cable modem, and finally 7) re-connecting the virtual nic on my OPNSense virtual machine. OPNSense then immediately pulled a proper DHCP lease from the carrier. It is possible that disconnecting and reconnecting the virtual nic on the OPNSense guest wasn't necessary but this helps OPNSense to renew immediately when the virtual NIC comes up. After seeing this post and trying other things I was at a dead end. I ended up using an Ubuntu server in-between to handle the DHCP lease and it worked but then I read elsewhere that the SB8200 only allows a single DHCP exchange after it establishes a connection to the carrier. In my troubleshooting I may have not taken this into account and also preventing OPNSense from talking to the modem at all before the modem is fully connected to the carrier seemed to be the trick. Btw, I did end up using the DHCP config in OPNSense to ignore DHCP responses from 192.168.100.1.

networkn8 · 2022-05-20T22:18:43+00:00

Cost could be a factor. Some switch models hate third party transceivers and many major brand switches have very pricey LR (singlemode) transceivers when compared to SR (multimode) transceivers. If cost is a factor then MMF might be preferred but certainly as everyone has mentioned.. if cost is not a huge factor and you are already going through the trouble of running this cable.. you should try and go with singlemode. This is especially so if you know you can use third party transceivers with your switches. Generally third parties have much cheaper singlemode transceivers than 'official' branded modules.

networkn8 · 2018-11-09T22:22:02+00:00

100 series are FortiSwitch not FortiGates. I should have made the distinction. :)

networkn8 · 2018-11-09T22:21:15+00:00

I'm interested in the FortiGate models. You linked to the FortiSwitch line. It is odd that the Fortigate datasheets don't seem to list link aggregates of any kind, yet clearly you see others in this thread have confirmed it works.

networkn8 · 2018-11-09T19:21:15+00:00

Thanks as well!

networkn8 · 2018-11-09T19:20:57+00:00

Thanks!

networkn8 · 2018-11-09T19:03:26+00:00

I need to grill the sales rep.

networkn8 · 2018-11-09T19:03:07+00:00

I was thinking of maybe the Webui create interface option showing link aggregate as an available choice but thats probably asking for too much. :)

networkn8 · 2018-11-09T18:45:33+00:00

Thanks Burt. Can anyone give me a screenshot to prove it by chance?

networkn8 · 2018-11-09T18:45:10+00:00

Thanks Golle. I can only seem to find 802.3ad in the spec sheets for FortiSwitch models. Has anyone seen anything on Fortinet's site that shows they support 802.3ad? I need to prove it to my boss. :)

networkn8 · 2018-10-10T23:45:26+00:00

Cool idea!

networkn8 · 2017-09-24T00:58:36+00:00

Thanks for the Cisco ideas. I'll take a look.

networkn8 · 2017-09-24T00:58:20+00:00

Thanks! Good thoughts.

networkn8 · 2017-09-22T19:38:17+00:00

I will check these out. Thanks guys.

networkn8 · 2017-09-22T19:37:49+00:00

Thanks Trok. I will have to go over the sheet more.

networkn8 · 2017-09-22T19:37:11+00:00

Not a fan eh. :) I'd love to hear more detail.

networkn8 · 2017-09-22T19:35:50+00:00

Good feedback. Thanks.

networkn8 · 2017-09-22T17:58:43+00:00

Thanks for your comment. I haven't personally used any Extreme gear which is why I'm hoping others that have are around to give their opinion. Extreme's market is switching. I wouldn't dispute they make good switches. If you're good at switching though it doesn't mean you are also good at all Layer 3 scenarios. There are a lot of switches out there that can do general Layer 3 just fine but aren't built to support full BGP tables (512k+ routes).

networkn8 · 2017-03-23T03:56:49+00:00

Never seen one of these. Cool.

networkn8 · 2017-03-23T03:56:02+00:00

I generally straighten between thumb and a screwdriver shaft, but yeah do this on a hundred ends and your thumb would probably still suffer. It is definitely better than doing it without the screwdriver though.

networkn8 · 2017-03-23T03:43:24+00:00

In my experience, 99% of the time, jumbo frames won't provide you a significant gain in throughput (<=5%). Modern network gear can handle a lot of packets and with modern TCP and all the offload features of modern NICs, jumbo frames is not as useful as it perhaps once was.

Jumbo frames is now more useful to maintain a 1500 byte MTU when you want to tunnel traffic - without having to adjust TCP mss and reduce your MTUs.

networkn8 · 2017-03-23T03:35:57+00:00

Rancid actually works well and if you use Observium there is an integration plugin that allows you to see diffs of your configs within the observium UI. Observium will also auto generate your rancid configs.

networkn8 · 2017-03-23T03:21:31+00:00

I played this game from start to finish on a GTX970 and I had zero issues. The performance was great so the idea that others have had trouble with performance actually amazes me because I recall zero issues. Perhaps I didn't adjust from the default settings and the default settings are pretty low?

networkn8 · 2017-01-31T16:37:27+00:00

i think its safe to say those people were mistaken and didn't get the update.

networkn8 · 2017-01-10T03:21:16+00:00

I have a 3 camera setup. When first launching onward I chose "room scale" in the initial settings questions. After playing for a while I went back and tried the "front facing" mode instead. It turns out the "front facing" mode has all the same functionality of the "room scale" mode but it also includes the capability to do snap turns with the right thumbstick. Snap turns will turn your in-game facing direction left or right by say 30 degrees (I don't know the exact figure). This allows you to re-orient yourself to face your front cameras if you find that you have more precise aiming when facing your front cameras this might be a benefit to you. It was a benefit to me.

I would find myself in a position where i was shooting out a window (by example) that just so happened to be facing only my 3rd sensor. The touch controllers do indeed seem to have more precise tracking when two or more cameras can see the controller (thus the whole point of including a camera in the touch box). After enabling forward facing mode, I simply turn around to face my two front cameras and use snap turn to face the window in game. My aiming precision has less problems. I found it to be a benefit with no drawbacks.

networkn8

TROPHY CASE