Very slow connection when choosing LAN interface

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Author Topic: Very slow connection when choosing LAN interface (Read 1923 times)

roninxt

Newbie
Posts: 25
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Very slow connection when choosing LAN interface

« on: September 02, 2020, 08:01:06 am »

When choosing the LAN interface, my connection becomes very slow to the point that I can't access the internet.

I have a Core i5 4300Y and 8 GB RAM. Aside from the default services after opnsense installation, I only have IDS enabled, with around 6-10 ET* rules enabled, IPS and Promiscuous mode enabled, and Hyperscan.

What could be the problem?

« Last Edit: September 02, 2020, 08:04:46 am by roninxt »

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roninxt

Newbie
Posts: 25
Karma: 0

Re: Very slow connection when choosing LAN interface

« Reply #1 on: September 02, 2020, 10:45:13 am »

Ok, I left IPS unchecked and everything went back to normal. All hardware offloading from the advanced settings have are disabled prior to enabling IPS. I don't understand, I have an Intel 1000 NIC which should support netmap. Also enabling IPS on WAN only works.

« Last Edit: September 02, 2020, 10:51:00 am by roninxt »

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hushcoden

Hero Member
Posts: 544
Karma: 23

Re: Very slow connection when choosing LAN interface

« Reply #2 on: September 02, 2020, 05:37:41 pm »

What if LAN only and promiscuous mode unchecked ?

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roninxt

Newbie
Posts: 25
Karma: 0

Re: Very slow connection when choosing LAN interface

« Reply #3 on: September 03, 2020, 02:26:31 am »

I found the problem.

My LAN is a lan bridge: LAN = igb1 (LAN default), igb2 (OPT1), igb3 (OPT2), it's not LAN = igb1. Enabling IPS should be on the actual interface. So it looks like it doesn't work well when you use it on a bridge.

I reconfigured the interfaces to be not on a bridge and IPS is now working.

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