Wifi to VPN (using Wireguard)

[Bill]

@tmatthews5511

And one last point -- these routers are just access points on the home network, they all use lan-dhcp since I have an old PC doing the internet connection.

Greetings
A diagram might be helpful to know whos who.

I had a DNSSEC error filling my log earlier this week that eventually made the router puke. I use a commercial VPN and suspect they are having some growing pains.

Something Else Going On ~ Puked

Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.820394] wpa_supplicant invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.831162] CPU: 0 PID: 1293 Comm: wpa_supplicant Not tainted 5.10.127 #0
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.838342] Stack : 00000840 800bf298 807f0000 806ecba8 00000000 00000000 00000000 00000000
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.847114]         00000000 00000000 00000000 00000000 00000000 00000001 81fdfbc8 4d69653c
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.855862]         81fdfc60 00000000 00000000 81fdfa70 00000038 80396264 00000000 ffffffea
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.864603]         000000b8 81fdfa7c 000000b8 80781aa8 81fdfba8 806bb240 80000000 00000000
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.873378]         808089a0 00000000 00100cca 00000840 00000000 803fb7c8 00000000 80940000
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.882134]         ...
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.884754] Call Trace:
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.884766] [<800bf298>] 0x800bf298
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.891086] [<80396264>] 0x80396264
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.894776] [<803fb7c8>] 0x803fb7c8
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.898479] [<8006697c>] 0x8006697c
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.902166] [<80066984>] 0x80066984
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.905870] [<801514ec>] 0x801514ec
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.909560] [<80151d78>] 0x80151d78
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.913250] [<80152724>] 0x80152724
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.916954] [<80195494>] 0x80195494
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.920648] [<8014e0f4>] 0x8014e0f4
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.924344] [<8014ff04>] 0x8014ff04
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.928047] [<80393314>] 0x80393314
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.931737] [<8017a0fc>] 0x8017a0fc
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.935427] [<8017f768>] 0x8017f768
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.939130] [<8020fd48>] 0x8020fd48
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.942821] [<8006fe64>] 0x8006fe64
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.946524] [<800752ec>] 0x800752ec
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.950223]
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.951846] Mem-Info:
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.954294] active_anon:91 inactive_anon:790 isolated_anon:0
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.954294]  active_file:0 inactive_file:171 isolated_file:0
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.954294]  unevictable:0 dirty:0 writeback:0
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.954294]  slab_reclaimable:244 slab_unreclaimable:7990
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.954294]  mapped:2 shmem:78 pagetables:109 bounce:0
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.954294]  free:1811 free_pcp:8 free_cma:0
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103306.986335] Node 0 active_anon:364kB inactive_anon:3160kB active_file:0kB inactive_file:684kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:312kB writeback_tmp:0kB kernel_stack:448kB all_unreclaimable? yes
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.009684] Normal free:7244kB min:8192kB low:10240kB high:12288kB reserved_highatomic:0KB active_anon:364kB inactive_anon:3160kB active_file:0kB inactive_file:684kB unevictable:0kB writepending:0kB present:65536kB managed:56780kB mlocked:0kB pagetables:436kB bounce:0kB free_pcp:32kB local_pcp:32kB free_cma:0kB
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.038214] lowmem_reserve[]: 0 0
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.041735] Normal: 179*4kB (UM) 154*8kB (UM) 75*16kB (UM) 38*32kB (UM) 9*64kB (UM) 10*128kB (UM) 2*256kB (UM) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 7244kB
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.056541] 249 total pagecache pages
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.060408] 0 pages in swap cache
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.063921] Swap cache stats: add 0, delete 0, find 0/0
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.069413] Free swap  = 0kB
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.072474] Total swap = 0kB
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.075530] 16384 pages RAM
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.078506] 0 pages HighMem/MovableOnly
Wed Jul 13 11:35:53 2022 kern.warn kernel: [103307.082555] 2189 pages reserved
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.085890] Tasks state (memory values in pages):
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.090835] [  pid  ]   uid  tgid total_vm      rss pgtables_bytes swapents oom_score_adj name
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.099842] [    518]    81   518      339       25    20480        0             0 ubusd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.108389] [    519]     0   519      249       10    20480        0             0 askfirst
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.117204] [    554]     0   554      277       14    16384        0             0 urngd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.125753] [    915]   514   915      335       37    20480        0             0 logd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.134199] [    969]     0   969      600       86    24576        0             0 rpcd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.142659] [   1289]     0  1289      664       26    20480        0             0 hostapd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.151392] [   1290]     0  1290      664       26    20480        0             0 wpa_supplicant
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.160751] [   1293]   101  1293     1097       29    24576        0             0 wpa_supplicant
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.170105] [   1294]   101  1294     1097       28    24576        0             0 hostapd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.178832] [   1419]     0  1419      328       12    20480        0             0 crond
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.187379] [   1491]     0  1491     1036       63    24576        0             0 uhttpd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.196018] [   1692]     0  1692      302       13    16384        0             0 dropbear
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.204822] [   2382]     0  2382      664       26    16384        0             0 ntpd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.213282] [   2431]   123  2431      327       11    20480        0             0 ntpd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.221742] [   8380]     0  8380      307       16    20480        0             0 dropbear
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.230558] [   8381]     0  8381      327       11    20480        0             0 ash
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.238927] [   8686]     0  8686      449       38    20480        0             0 netifd
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.247564] [   9011]     0  9011      327       11    16384        0             0 udhcpc
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.256203] [   9204]     0  9204      664       26    20480        0             0 dnsmasq
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.264917] [   9207]   453  9207      757       42    20480        0             0 dnsmasq
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.273649] [   9547]     0  9547      777      229    20480        0             0 luci
Wed Jul 13 11:35:53 2022 kern.info kernel: [103307.282101] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),global_oom,task_memcg=/,task=luci,pid=9547,uid=0
Wed Jul 13 11:35:53 2022 kern.err kernel: [103307.292747] Out of memory: Killed process 9547 (luci) total-vm:3108kB, anon-rss:912kB, file-rss:4kB, shmem-rss:0kB, UID:0 pgtables:20kB oom_score_adj:0
Wed Jul 13 11:39:15 2022 daemon.notice netifd: Interface 'wg0' has lost the connection

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Also if: I know it was not mentioned here; have you integrated this on your network?

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Stubby + Dnsmasq does not work with Google DNS

Just modify the config files on /etc/config/stubby here's my Google DNS Setup config resolver option address '8.8.8.8' option tls_auth_name 'dns.google.com' option tls_port 853 list spki 'sha256/**COPY_PASTE_THE_GENERATE_SHA256_FROM_OPENSSL-UTILS**' option tls_cipher_list 'EECDH+AESGCM:EECDH+CHACHA20' option tls_ciphersuites 'TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256' option tls_min_version '1.2' option tl…

@psherman alluded that other things could be misconfigured or just broken (bugged); I tend to follow the avatars suggested yield sign. That's my caveat to your anticipated reply.
Thanks.