You could install Unbound (which is easy thanks to the excellent
unbound_manager script by
@Martineau) as a workaround for these dnsmasq vulnerabilities and if other serious vulnerabilities don't come up too soon you could keep using your RT-AC87U until there's a good selection of wifi 6E routers, probably next year. Wifi 6E is the biggest wifi upgrade in years.
Thanks for the suggestion. I went to amtm and choose 7 to install unbound then got this message:
"unbound Manager requires the Entware repository
installed. Enter ep to install Entware now."
So, keyed-in ep and than got this:
"No compatible device(s) found to install
Entware on. A USB storage device formatted
with one of these file systems is required:
ext2, ext3, ext4
Use Format disk (fd) to format FAT or NTFS
formatted devices to ext*"
I currently indeed have a FAT USB connected to usb2.0 port. When I go with the GUI to format this disk, the choice is FAT or NTFS, there is nothing about ext*. Is it really OK to run the fd command and reformat that usb stick to ext*?
(Note that I put another USB stick in the USB3.0 port that was pre-formated in ext4, but as soon as I plugged it in, the RT-AC87U went crazy saying I was running out of nvram while indicator was at 27% !!! after one minute, the system was completely unstable, loosing all wifi .... had to power it off/on & remove that stick so that everyting was again OK)
Thx,
GS