Global addresses can be obtained, pinged, and reached via http
client: waiting for success: [ `ip -o -6 addr show dev eth1 scope global -tentative -temporary | wc -l` -eq 1 ]
client # [   14.204119] dhcpcd[732]: eth1: Router Advertisement from fe80::5054:ff:fe12:102
router # [   25.581308] radvd[649]: [Dec 30 10:00:44] radvd (649): IPv6 forwarding on interface seems to be disabled, but continuing anyway
router # [   27.281146] nscd[705]: 705 checking for monitored file `/etc/netgroup': No such file or directory
client # [   27.793566] nscd[716]: 716 checking for monitored file `/etc/netgroup': No such file or directory
server # [   28.025739] nscd[715]: 715 checking for monitored file `/etc/netgroup': No such file or directory
error: action timed out
(912.84 seconds)