I just switched from a R9000 to a R7800. On the R9000, there was only one choice under Setup, Networking, Bridging "Create a Bridge" for "Settings". The choice was IGMP Snooping. On the R7800, there are multiple choices. I checked IGMP Snooping since I had it before, but there is a choice "Linklocal Learn" that was checked as a default.
I tried to read and Google for an explanation but I found nothing specific to DD-WRT. Should I leave the setting checked? I have one VLAN, a Virtual Access Point, that I want isolated from my main network. It is working as it did on the R9000 but I do not know what this setting does. Can anyone shed some light?
2025-09-08_09-35-47.jpg
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_________________ Linksys MX8500 DD-WRT v3.0-r65140 std (05/24/26)
Linux 6.12.90 #560 SMP Sun May 24 04:26:15 +06 2026 aarch64 Gateway, AP, DNSMasq, no ARPd caching, SmartDNS, quic, NSS-ECM, QCA NSS, no STP, IPv4 & IPv6
VAP on wlan1 for internet devices
Static Leases & DHCP
Quad9, Forced DNS, Forced DoT, No QoS
2.4GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
5GHz: AP, AX Only, ACK Timing 300, WPA3 w/GCMP
Netgear AX1800 WiFi Mesh Extender (x2)
Xfinity 1.2Gbps/40Mbps
Joined: 16 Nov 2015 Posts: 7244 Location: UK, London, just across the river..
Posted: Tue Sep 09, 2025 6:08 Post subject:
Both use different architectures for VLAN segmentation...one (R9000) has still swconfig,
while the other one (R7800) moved to DSA....it took me a time to understand how DSA works...kind of... but still waiting for more insights and some fixing...as it seams DSA still has some bugs, or oddities....
there is a youtube video from OpenWRT about DSA which is some kind of a helpful, towards understanding it...but how DDWRT handles DSA is a different animal...
have a look here, where ho1Aetoo contributed with some helpful insights
