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    Keep loosing WAN IP Address - dhclient does not seem to do update

    Scheduled Pinned Locked Moved DHCP and DNS
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    • Y
      yoda715
      last edited by

      We've established that dhclient is terminating prematurely for some reason. We're working hard to nail this down. Trouble is I'm the only developer experiencing this issue, but we are working on it.

      1 Reply Last reply Reply Quote 0
      • F
        freax
        last edited by

        Hi.

        My connection failed again but the logs went away during my lunch.
        Is not possible to fetch old logs ?

        I deactivated the firewall interface and then activated again and everything works.

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        • Y
          yoda715
          last edited by

          Everyone please update to the latest snapshot and see if that solves your disconnects.

          http://snapshots.pfsense.com/FreeBSD6/RELENG_1/updates/

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          • S
            sullrich
            last edited by

            @sdale:

            Everyone please update to the latest snapshot and see if that solves your disconnects.

            http://snapshots.pfsense.com/FreeBSD6/RELENG_1/updates/

            What has changed that would fix it?

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            • Y
              yoda715
              last edited by

              Bill's patch. I'm running 2-14 and I haven't had an issue yet. Wondering if anyone else will with the new snapshot.

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              • S
                Selective
                last edited by

                Sorry, no luck =(
                Snapshot 02-14-2007:

                –---------------------

                Feb 18 11:59:18 dhclient[271]: exiting.
                Feb 18 11:59:18 dhclient[271]: exiting.
                Feb 18 11:59:18 dhclient[271]: short write: wanted 21 got 0 bytes
                Feb 18 11:59:18 dhclient[271]: short write: wanted 21 got 0 bytes
                Feb 18 11:59:18 dhclient[271]: DHCPACK from 90.224.168.1
                Feb 18 11:59:18 dhclient[271]: DHCPREQUEST on rl0 to 255.255.255.255 port 67
                Feb 18 11:58:37 last message repeated 5 times
                Feb 18 11:54:02 last message repeated 3 times
                Feb 18 11:52:00 last message repeated 3 times
                Feb 18 11:51:28 dhclient[271]: DHCPREQUEST on rl0 to 213.67.15.234 port 67
                Feb 18 11:41:51 php: : FTP proxy disabled for interface opt2 - ignoring.
                Feb 18 11:41:51 php: : FTP proxy disabled for interface opt1 - ignoring.
                Feb 18 11:41:51 php: : FTP proxy disabled for interface LAN - ignoring.
                Feb 18 11:41:50 check_reload_status: reloading filter
                Feb 18 11:41:44 check_reload_status: updating dyndns
                Feb 18 11:41:41 php: : FTP proxy disabled for interface opt2 - ignoring.
                Feb 18 11:41:41 php: : FTP proxy disabled for interface opt1 - ignoring.
                Feb 18 11:41:41 php: : FTP proxy disabled for interface LAN - ignoring.

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                • S
                  sullrich
                  last edited by

                  @Selective:

                  Sorry, no luck =(
                  Snapshot 02-14-2007:

                  –---------------------

                  Feb 18 11:59:18 dhclient[271]: exiting.
                  Feb 18 11:59:18 dhclient[271]: exiting.
                  Feb 18 11:59:18 dhclient[271]: short write: wanted 21 got 0 bytes
                  Feb 18 11:59:18 dhclient[271]: short write: wanted 21 got 0 bytes
                  Feb 18 11:59:18 dhclient[271]: DHCPACK from 90.224.168.1
                  Feb 18 11:59:18 dhclient[271]: DHCPREQUEST on rl0 to 255.255.255.255 port 67
                  Feb 18 11:58:37 last message repeated 5 times
                  Feb 18 11:54:02 last message repeated 3 times
                  Feb 18 11:52:00 last message repeated 3 times
                  Feb 18 11:51:28 dhclient[271]: DHCPREQUEST on rl0 to 213.67.15.234 port 67
                  Feb 18 11:41:51 php: : FTP proxy disabled for interface opt2 - ignoring.
                  Feb 18 11:41:51 php: : FTP proxy disabled for interface opt1 - ignoring.
                  Feb 18 11:41:51 php: : FTP proxy disabled for interface LAN - ignoring.
                  Feb 18 11:41:50 check_reload_status: reloading filter
                  Feb 18 11:41:44 check_reload_status: updating dyndns
                  Feb 18 11:41:41 php: : FTP proxy disabled for interface opt2 - ignoring.
                  Feb 18 11:41:41 php: : FTP proxy disabled for interface opt1 - ignoring.
                  Feb 18 11:41:41 php: : FTP proxy disabled for interface LAN - ignoring.

                  Do you see anything in the filter logs showing blocked packets around this time?

                  Also, anyone having this problem, please run this from a shell:

                  fetch -o /etc/inc http://www.pfsense.com/~sullrich/filter.inc

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                  • S
                    Selective
                    last edited by

                    no, i have not seen any blocked packets that could have something to do with this, but i am one of those
                    who are affected by the "promiscuous mode disabled", and therefore my firwall logs stops after a while.

                    isn´t there a way to catch the dhclient message and "restart" dhclient when its terminating, just as a workaround until you pinned down the problem ?

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                    • S
                      sullrich
                      last edited by

                      We already have code to detect this but it doesnt appear to be working.

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                      • S
                        sullrich
                        last edited by

                        Good news!

                        I was able to replicate this problem thanks to sdale and Vescovo.

                        Vescovo had the final fix and it has been commited.  Please upgrade to a snapshot about an hour from this message.

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                        • Y
                          yoda715
                          last edited by

                          @sullrich:

                          Good news!

                          I was able to replicate this problem thanks to sdale and Vescovo.

                          Vescovo had the final fix and it has been commited.  Please upgrade to a snapshot about an hour from this message.

                          I think you forgot to wave your magic voodoo wand, problem still exists  ;). I think the problem lies in the rc.newwanip not catching the interface being assigned 0.0.0.0 IP address.

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                          • S
                            Selective
                            last edited by

                            i did a workaround for that problem a couple of months ago:

                            rc.newwanip:
                            –---------------------------
                            if($curwanip == "0.0.0.0") {
                                    log_error("Failed to update WAN IP, restarting dhclient.");
                                    exec("dhclient {$interface_real}");
                                    /* die now, dhclient will kick off rc.newwanip again? */
                                    exit;
                            }

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                            • F
                              freax
                              last edited by

                              Is not the real deal but if you disconnect the cable and connect it again you won't have link.
                              I have both ends with fixed ip (the router and firewall interface) and it should have link again like it should.

                              Like I said, i think it's a good way to debug whenever you want. Tests always available.

                              Sorry if i'm wrong.

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                              • K
                                Krakke
                                last edited by

                                Tried this  "fetch -o /etc/inc http://www.pfsense.com/~sullrich/filter.inc"

                                Now i have to reinstall pfsense  :'(

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                                • S
                                  sullrich
                                  last edited by

                                  I have added a workaround and verified that it does indeed seem to work.

                                  Update to the latest snapshot at least an hour from now.  Currently 11:46PM EST.

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                                  • S
                                    Selective
                                    last edited by

                                    im sorry to say this but, the new snapshot (02-18) is not working :(
                                    –------------------------------

                                    Feb 20 23:40:20 php: : rc.newwanip working with IP address 0.0.0.0 wan rl0.
                                    Feb 20 23:40:20 php: : Informational: rc.newwanip is starting rl0.
                                    Feb 20 23:40:19 dhclient: exit_with_hooks()
                                    Feb 20 23:40:19 dhclient: PREINIT
                                    Feb 20 23:40:19 dhclient: netstat
                                    Feb 20 23:40:19 dhclient[21934]: DHCPOFFER from 90.224.168.1
                                    Feb 20 23:40:19 dhclient[21934]: DHCPDISCOVER on rl0 to 255.255.255.255 port 67 interval 8
                                    Feb 20 23:40:19 dhclient: exit_with_hooks()
                                    Feb 20 23:40:19 check_reload_status: rc.newwanip starting
                                    Feb 20 23:40:19 dhclient: PREINIT
                                    Feb 20 23:40:19 dhclient: netstat
                                    Feb 20 23:40:19 dhclient: exit_with_hooks()
                                    Feb 20 23:40:18 dhclient: Deleting old routes
                                    Feb 20 23:40:18 dhclient: EXPIRE FAIL
                                    Feb 20 23:40:18 dhclient: netstat
                                    Feb 20 23:40:18 dhclient: exit_with_hooks()
                                    Feb 20 23:40:18 dhclient: PREINIT
                                    Feb 20 23:40:18 dhclient: netstat
                                    Feb 20 23:18:20 dhclient[280]: exiting.
                                    Feb 20 23:18:20 dhclient[280]: exiting.
                                    Feb 20 23:18:20 dhclient[280]: short write: wanted 21 got 0 bytes
                                    Feb 20 23:18:20 dhclient[280]: short write: wanted 21 got 0 bytes
                                    Feb 20 23:18:20 dhclient[280]: DHCPACK from 90.224.168.1
                                    Feb 20 23:18:20 dhclient[280]: DHCPREQUEST on rl0 to 255.255.255.255 port 67
                                    Feb 20 23:16:07 last message repeated 6 times
                                    Feb 20 23:12:37 last message repeated 7 times
                                    Feb 20 23:10:43 last message repeated 4 times
                                    Feb 20 23:10:13 dhclient[280]: DHCPREQUEST on rl0 to 213.67.15.234 port 67
                                    Feb 20 23:00:37 php: : FTP proxy disabled for interface opt2 - ignoring.
                                    Feb 20 23:00:37 php: : FTP proxy disabled for interface opt1 - ignoring.
                                    Feb 20 23:00:37 php: : FTP proxy disabled for interface LAN - ignoring.
                                    Feb 20 23:00:36 check_reload_status: reloading filter
                                    Feb 20 23:00:30 check_reload_status: updating dyndns
                                    Feb 20 23:00:27 php: : FTP proxy disabled for interface opt2 - ignoring.
                                    Feb 20 23:00:27 php: : FTP proxy disabled for interface opt1 - ignoring.
                                    Feb 20 23:00:27 php: : FTP proxy disabled for interface LAN - ignoring.
                                    Feb 20 23:00:23 check_reload_status: reloading filter
                                    Feb 20 23:00:23 php: : Configuring slbd
                                    Feb 20 23:00:23 php: : Resyncing configuration for all packages.
                                    Feb 20 23:00:19 php: : Creating rrd update script

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                                    • S
                                      sullrich
                                      last edited by

                                      I really don't see how it could not work.

                                      Run this from a shell:

                                      cat /sbin/dhclient | grep reload

                                      What does the results say?

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                                      • S
                                        Selective
                                        last edited by

                                        it does not say anything:
                                        –----------------------------

                                        Enter an option: 8

                                        cat /sbin/dhclient | grep reload

                                        Binary file (standard input) matches

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                                        • S
                                          sullrich
                                          last edited by

                                          Can someone else please test?  This absolutely works for me after 20 hours when normally it would break in 30 minutes…

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                                          • K
                                            Krakke
                                            last edited by

                                            @sullrich:

                                            Can someone else please test?  This absolutely works for me after 20 hours when normally it would break in 30 minutes…

                                            Works fine for me, only lost my ip 2 times, and that was before the latest snapshot.

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