Specifying 10.0.2.77 also works
-device rtl8139,netdev=net0 -netdev user,id=net0,hostfwd=tcp:127.0.0.1:2228-10.0.2.77:22
but using this default allows us to use the widely advertised
-device rtl8139,netdev=net0 -netdev user,id=net0,hostfwd=tcp:127.0.0.1:2228-:22
* gnu/packages/hurd.scm (hurd-rc-script): Used from (hurd)[inputs]: Use
10.0.2.15; the default QEMU guest IP.
("/servers/password" ("/hurd/password"))
("/servers/socket/1" ("/hurd/pflocal"))
("/servers/socket/2" ("/hurd/pfinet" "--interface" "eth0"
- "--address" "10.0.2.77"
+ "--address" "10.0.2.15" ;the default QEMU guest IP
"--netmask" "255.255.255.0"
"--gateway" "10.0.2.2"
"--ipv6" "/servers/socket/16"))))