On Tue, Oct 10, 2017 at 03:28:39PM +0000, Anthony Coulter wrote: > I upgraded OpenBSD 6.1 to 6.2 on a Vultr node and after the first > reboot dhclient reports this new error: > > /var/db/dhclient.leases.vio0 line 15: Expecting CIDR prefix length. > option classless-static-routes 0.0.0.0/33
33 is an invalid number here. The number of bits must be between 0 and 32. The correct specification for a default route is 0.0.0.0/0 <route ip> .... Ken > ^ > > At this moment I both OpenBSD 6.1 and 6.2 are running on different > instances of Vultr nodes. Copying different versions of /sbin/dhclient > back and forth between my boxes shows that they're putting different > classless-static-routes lines in the leases file: > > option classless-static-routes 0.0.0.0/0 108.61.190.1, 169.254.169.254/32 > 108.61.190.1; > option classless-static-routes 0.0.0.0/33 108.61.190.1, 169.254.169.254/32 > 108.61.190.1; > > (The top line is created by a 6.1 dhclient executable; the bottom line > is created by 6.2.) > > Here's a tcpdump trace showing what happens when I renew my lease on > the server in question. Since "classless-static-routes" is option 121, > I was expecting to see a "79" (hex) somewhere in the response, but I > don't. So I have no idea where dhclient is getting the invalid mask > length from. > > # doas tcpdump -nXi vio0 port 67 and port 68 > tcpdump: listening on vio0, link-type EN10MB > 11:22:13.801668 108.61.190.203.68 > 255.255.255.255.67: xid:0xc9048474 > [|bootp] [tos 0x10] > 0000: 4510 0148 0000 0000 8011 0e8d 6c3d becb E..H........l=.. > 0010: ffff ffff 0044 0043 0134 57f1 0101 0600 .....D.C.4W..... > 0020: c904 8474 0000 0000 0000 0000 0000 0000 ...t............ > 0030: 0000 0000 0000 0000 5600 0035 275c 0000 ........V..5'\.. > 0040: 0000 0000 0000 0000 0000 0000 0000 0000 ................ > 0050: 0000 0000 0000 0000 0000 0000 0000 0000 ................ > 0060: 0000 0000 0000 ...... > > 11:22:13.803582 169.254.169.254.67 > 108.61.190.203.68: xid:0xc9048474 > Y:108.61.190.203 [|bootp] [tos 0xc0] > 0000: 45c0 0157 30df 0000 4011 c8f1 a9fe a9fe E..W0...@....... > 0010: 6c3d becb 0043 0044 0143 f7de 0201 0600 l=...C.D.C...... > 0020: c904 8474 0000 0000 0000 0000 6c3d becb ...t........l=.. > 0030: 0000 0000 0000 0000 5600 0035 275c 0000 ........V..5'\.. > 0040: 0000 0000 0000 0000 0000 0000 0000 0000 ................ > 0050: 0000 0000 0000 0000 0000 0000 0000 0000 ................ > 0060: 0000 0000 0000 ...... > > ^C > 170 packets received by filter > 0 packets dropped by kernel > > Regards, > Anthony Coulter >