Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

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

    Scheduled Pinned Locked Moved DHCP and DNS
    199 Posts 27 Posters 112.4k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • 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.

      1 Reply Last reply Reply Quote 0
      • 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

        1 Reply Last reply Reply Quote 0
        • 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 ?

          1 Reply Last reply Reply Quote 0
          • S
            sullrich
            last edited by

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

            1 Reply Last reply Reply Quote 0
            • 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.

              1 Reply Last reply Reply Quote 0
              • 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.

                1 Reply Last reply Reply Quote 0
                • 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;
                  }

                  1 Reply Last reply Reply Quote 0
                  • 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.

                    1 Reply Last reply Reply Quote 0
                    • K
                      Krakke
                      last edited by

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

                      Now i have to reinstall pfsense  :'(

                      1 Reply Last reply Reply Quote 0
                      • 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.

                        1 Reply Last reply Reply Quote 0
                        • 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

                          1 Reply Last reply Reply Quote 0
                          • 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?

                            1 Reply Last reply Reply Quote 0
                            • S
                              Selective
                              last edited by

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

                              Enter an option: 8

                              cat /sbin/dhclient | grep reload

                              Binary file (standard input) matches

                              1 Reply Last reply Reply Quote 0
                              • 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…

                                1 Reply Last reply Reply Quote 0
                                • 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.

                                  1 Reply Last reply Reply Quote 0
                                  • S
                                    sullrich
                                    last edited by

                                    @Krakke:

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

                                    Great!  Almost started to go insane, because I know this fixed my issue.  Please, someone else test?

                                    1 Reply Last reply Reply Quote 0
                                    • K
                                      Krakke
                                      last edited by

                                      @sullrich:

                                      @Krakke:

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

                                      Great!  Almost started to go insane, because I know this fixed my issue.  Please, someone else test?

                                      Im sorry sullrich, went out for a while, when i came back

                                      Feb 21 20:01:24 dhclient[300]: DHCPREQUEST on fxp0 to 172.21.249.50 port 67
                                      Feb 21 20:01:24 dhclient[300]: DHCPACK from 172.21.249.50
                                      Feb 21 20:01:24 dhclient[300]: short write: wanted 21 got 0 bytes
                                      Feb 21 20:01:24 dhclient[300]: short write: wanted 21 got 0 bytes
                                      Feb 21 20:01:24 dhclient[300]: exiting.
                                      Feb 21 20:01:24 dhclient[300]: exiting.

                                      1 Reply Last reply Reply Quote 0
                                      • H
                                        hoba
                                        last edited by

                                        Atm there is a workaround in pllace that will restart the dhclient when it exits. Does it get restarted?

                                        1 Reply Last reply Reply Quote 0
                                        • K
                                          Krakke
                                          last edited by

                                          @hoba:

                                          Atm there is a workaround in pllace that will restart the dhclient when it exits. Does it get restarted?

                                          Nope at 20:01:24 it exited, at 21:01 i lost my ip, then i had to do a renew.

                                          1 Reply Last reply Reply Quote 0
                                          • S
                                            sullrich
                                            last edited by

                                            It can take up to 5 minutes to restart dhclient depending on if check_reload_status is running.

                                            So if you still have trouble please check that check_reload_status is running from a shell by doing:

                                            ps awux | grep check_reload_status

                                            Also, cat /etc/crontab | grep check

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.