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1

24.7 Production Series / ISC DHCPV4 handing out static IPs as dynamic

« on: October 07, 2024, 08:46:39 pm »

Hi everyone,

I am pretty sure there is something I am doing wrong and you can point me in the right direction.
I run OPNsense 24.7.5_3-amd64 and utilizing ISC DHCPv4 to handle my LAN IP Pool.
It is set to hand out IPs in the range of 10.0.0.100 to 10.0.0.150. Within that range, I configured a static mapping to one of my devices MAC address, so it always will get the 10.0.0.149 address.

For whatever reason, every new system or VM I join to the network gets the 10.0.0.149 address. It feels like instead of picking one of the other 49 free addresses, it gives out the Static one on purpose and not by accident. But I can not wrap my head around why this is.

Attached is a Screenshot of the current situation. The Host "BOEXLE" is the one with the correct MAC and the static reservation. I spun up a Container on another system and it gets the .149. Yesterday I spun up a KVM VM on one of my other hosts and it got the .149 too. I do not understand why this is. I thought reserving a IP within the pool for a specific MAC should prevent from handing out this IP to another system.

2

Hardware and Performance / Ways around i225/i226 NICs?

« on: June 03, 2024, 08:28:37 pm »

I am doing my research now for a few days to get the right hardware for a new OPNsense system that should replace my DD-WRT system. I am especially looking for devices capable of 2.5GbE with 2-4 NICs. In that process I have read a log about Realtek NICs and Intel NICs and the issues people have with the i225/i226 NICs.

The problem is, that no matter what devices I search for in that segment (small, fanless, 2-4 NICs, 2.5GbE), there does not seem to be a way around the i226-V NICs. Even on devices that are meant to be used with OPNsense like the Thomas Krenn LESv4, they all use the i226-V NICs.

I also read that some people can get rid of the issues by tweaking the APM features (turning them off), but that defeats the purpose of a low power, low noise Firewall for me (which sits right here on my desk).

Even when reading all the recent posts about which hardware to chose, in the end it seems always to be a device with an i226-V. Like no other thing exists... and I can not find something else with current technology and low energy consumption either.

I was even on the fence to get a Odroid H4+, because of its  super low power consumption but still good performance... well, i226-V again :-) Current CWWK systems? i226-V. Most of the Aliexpress no-name stuff? i226-V or i225 if they are a bit older.