Thanks for taking a look, C.J. I incorporated your fix for the typo you mentioned in your postscript. I also rebased the patch against the latest source; see the bug report for details.
I will also take a look at improving the handling of the dhcpd6.leases file, as it appears to deviate from the handling of the v4 dhcpd.leases file. Thanks for your suggestions. -Steve On Jan 21, 2015, at 3:13 PM, C.J. Adams-Collier <c...@colliertech.org> wrote: > Hello Steven, ALCON, > > I've applied your patch to the 4.2.4 .deb source from Ubuntu Trusty and > removed the apparmor and apport references: > > http://archive.ubuntu.com/ubuntu/pool/main/i/isc-dhcp/isc-dhcp_4.2.4-7ubuntu12.dsc > > I doubt that you used this source for the base of your patch, but it > applied with only one rejection, so it was close enough for me. There > were compile-time problems on my Wheezy build machine relating to > apport / apparmor, but these were easy enough to deal with using > > $ grep -rsil -e apport -e apparmor isc-dhcp-4.2.4 | grep -v changelog > > Still, it would be nice to have the source you built from so that I > could skip this stage. It would be nicer still if the patch applied to > 4.2.2 (Wheezy) or 4.3.1 (Jessie). > > Once installed, I verified that stopping and starting the daemon did not > cause an outage with the v4 server. It did not; I was able to request > v4 leases on all interfaces as expected. I then modified > the /etc/default/isc-dhcp-server config file to set the following > variables: > > V6_ENABLED="true" > INTERFACES_V6="vl78 eth4.100 eth4.101 eth3" > > A re-start of the daemon succeeded for v4, but failed for v6 due to a > missing dhcpd6.leases file: > > Jan 21 09:17:35 sip1 dhcpd: Can't open lease database > /var/lib/dhcp/dhcpd6.leases: No such file or directory -- > Jan 21 09:17:35 sip1 dhcpd: check for failed database rewrite > attempt! > Jan 21 09:17:35 sip1 dhcpd: Please read the dhcpd.leases manual page > if you > Jan 21 09:17:35 sip1 dhcpd: don't know what to do about this. > > It might be nice if the daemon grepped the log for this message and gave > a more specific error message. I created the leases file with: > > $ sudo touch /var/lib/dhcp/dhcpd6.leases > > Re-starting succeeded for v4 and failed again for v6 because I had not > written any subnet6 declarations and the daemon had no interfaces on > which to listen. It might be nice if the daemon grepped the log for > this message and gave a more specific error message: > > Jan 21 09:39:53 sip1 dhcpd: No subnet6 declaration for eth3 > (fe80::290:bff:fe0a:6c2). > ... > Jan 21 09:39:53 sip1 dhcpd: No subnet6 declaration for eth4.101 > (fe80::290:bff:fe0a:e08b). > ... > Jan 21 09:39:53 sip1 dhcpd: No subnet6 declaration for eth4.100 > (fe80::290:bff:fe0a:e08b). > ... > Jan 21 09:39:53 sip1 dhcpd: No subnet6 declaration for vl78 > (2607:ff08:f5:1337::1). > Jan 21 09:39:53 sip1 dhcpd: ** Ignoring requests on vl78. If this is > not what > Jan 21 09:39:53 sip1 dhcpd: you want, please write a subnet6 > declaration > Jan 21 09:39:53 sip1 dhcpd: in your dhcpd.conf file for the network > segment > Jan 21 09:39:53 sip1 dhcpd: to which interface vl78 is attached. ** > Jan 21 09:39:53 sip1 dhcpd: > Jan 21 09:39:53 sip1 dhcpd: > Jan 21 09:39:53 sip1 dhcpd: Not configured to listen on any interfaces! > > I added a subnet6 declaration for the vl78 interface > to /etc/dhcp/dhcpd6.conf and re-started the service successfully: > > # vl78 > > subnet6 2607:ff08:f5:1337::0/64 { > # ::ac10:4e66 -::ac10:4e6d = ::172.16.78.102 - ::172.16.78.109 ; > matches v4 subnet range > range6 2607:ff08:f5:1337::ac10:4e66 2607:ff08:f5:1337::ac10:4e6d; > > > option dhcp6.name-servers > 2607:ff08:f5:1337::64,2607:ff08:f5:1337::19,2607:ff08:f5:3a::2; > option dhcp6.domain-search "esd.colliertech.org","colliertech.org"; > > # laptop / virtual machine > host ubuntu0 { > host-identifier option dhcp6.client-id > 00:01:00:01:1c:52:b8:47:08:00:27:04:be:09; > fixed-address6 2607:ff08:f5:1337::5d; > } > } > > At this point, I was able to solicit the server for an address from my > laptop VM client, ubuntu0. Logs from server: > > Jan 21 15:02:44 sip1 dhcpd: Solicit message from > fe80::a00:27ff:fe04:be09 port 546, transaction ID 0xC6EFEB00 > Jan 21 15:02:44 sip1 dhcpd: Sending Advertise to > fe80::a00:27ff:fe04:be09 port 546 > Jan 21 15:02:45 sip1 dhcpd: Request message from > fe80::a00:27ff:fe04:be09 port 546, transaction ID 0xD04C9800 > Jan 21 15:02:45 sip1 dhcpd: Sending Reply to fe80::a00:27ff:fe04:be09 > port 546 > > Logs from client: > > cjac@ubuntu0:~$ sudo dhclient -v -6 eth0 > Internet Systems Consortium DHCP Client 4.2.4 > Copyright 2004-2012 Internet Systems Consortium. > All rights reserved. > For info, please visit https://www.isc.org/software/dhcp/ > > Bound to *:546 > Listening on Socket/eth0 > Sending on Socket/eth0 > PRC: Soliciting for leases (INIT). > XMT: Forming Solicit, 0 ms elapsed. > XMT: X-- IA_NA 27:04:be:09 > XMT: | X-- Request renew in +3600 > XMT: | X-- Request rebind in +5400 > XMT: Solicit on eth0, interval 1010ms. > RCV: Advertise message on eth0 from fe80::5c89:b9ff:fee0:68e2. > RCV: X-- IA_NA 27:04:be:09 > RCV: | X-- starts 1421881365 > RCV: | X-- t1 - renew +3600 > RCV: | X-- t2 - rebind +7200 > RCV: | X-- [Options] > RCV: | | X-- IAADDR 2607:ff08:f5:1337::5d > RCV: | | | X-- Preferred lifetime 604800. > RCV: | | | X-- Max lifetime 2592000. > RCV: X-- Server ID: 00:01:00:01:1c:52:ae:e0:00:90:0b:0a:06:c4 > RCV: Advertisement recorded. > PRC: Selecting best advertised lease. > PRC: Considering best lease. > PRC: X-- Initial candidate 00:01:00:01:1c:52:ae:e0:00:90:0b:0a:06:c4 > (s: 155, p: 0). > XMT: Forming Request, 0 ms elapsed. > XMT: X-- IA_NA 27:04:be:09 > XMT: | X-- Requested renew +3600 > XMT: | X-- Requested rebind +5400 > XMT: | | X-- IAADDR 2607:ff08:f5:1337::5d > XMT: | | | X-- Preferred lifetime +7200 > XMT: | | | X-- Max lifetime +7500 > XMT: V IA_NA appended. > XMT: Request on eth0, interval 910ms. > RCV: Reply message on eth0 from fe80::5c89:b9ff:fee0:68e2. > RCV: X-- IA_NA 27:04:be:09 > RCV: | X-- starts 1421881366 > RCV: | X-- t1 - renew +3600 > RCV: | X-- t2 - rebind +7200 > RCV: | X-- [Options] > RCV: | | X-- IAADDR 2607:ff08:f5:1337::5d > RCV: | | | X-- Preferred lifetime 604800. > RCV: | | | X-- Max lifetime 2592000. > RCV: X-- Server ID: 00:01:00:01:1c:52:ae:e0:00:90:0b:0a:06:c4 > PRC: Bound to lease 00:01:00:01:1c:52:ae:e0:00:90:0b:0a:06:c4. > cjac@ubuntu0:~$ ip -6 addr show dev eth0 > 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000 > inet6 2607:ff08:f5:1337::5d/64 scope global > valid_lft forever preferred_lft forever > inet6 fe80::a00:27ff:fe04:be09/64 scope link > valid_lft forever preferred_lft forever > > > Thanks for the hard work on this! I'll post an update if I have any > problems with either the v4 or v6 server > > Cheers, > > C.J. > > > PS: > > There is a typo in the init script under the "status" case: > check_status -v "$DHCPD6_PID" "NAME6" > should be > check_status -v "$DHCPD6_PID" "$NAME6" > -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
