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

    Unable to connect to OPT1 from LAN

    Scheduled Pinned Locked Moved Firewalling
    20 Posts 6 Posters 7.3k 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.
    • B
      Bai Shen
      last edited by

      @Metu69salemi:

      would you kindly provide more info, screenshots of rules and ip-addressing scheme would be good starting ppoint

      I'm pretty much running the default firewall rules.  Both OPT1 and LAN have their own DHCP server and subnet.  I was under the impression that LAN should be able to connect to anything unless it was specifically disallowed.

      I have to rebuild my machine this weekend anyways, so is there anything in particular I should look for?  I plan on doing a clean build using the latest RC.

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

        just add a rule on the lan tab like this:
        allow
        proto: any
        src: lan-subnet
        destination: opt1-subnet

        1 Reply Last reply Reply Quote 0
        • M
          Metu69salemi
          last edited by

          Your assumption is right, LAN should be allowed to any by default. OPT1 isn't

          1 Reply Last reply Reply Quote 0
          • B
            Bai Shen
            last edited by

            @heper:

            just add a rule on the lan tab like this:
            allow
            proto: any
            src: lan-subnet
            destination: opt1-subnet

            Doesn't the default rule already allow this?

            @Metu69salemi:

            Your assumption is right, LAN should be allowed to any by default. OPT1 isn't

            So why wouldn't I be able to connect from LAN to OPT1?

            I just realized something.  I can connect to the web server on OPT1 from LAN, but not a file share or ftp server.  Is there something different about those protocols that would cause them not to work?

            1 Reply Last reply Reply Quote 0
            • M
              Metu69salemi
              last edited by

              smb and ftp might need some more knowledge, try to use search. There is lot of discussion already in this forum

              1 Reply Last reply Reply Quote 0
              • N
                Nachtfalke
                last edited by

                If there is no firewall rule on and interface it means, that everything is blocked.
                So if you would like to allow traffic from LAN to everywhre (WAN, OPT1) then add a firewall rule with:

                protocol: any
                source: any OR LAN subnet
                port: any
                destination: any
                destination port: any

                If you would like to connect from the OPT1 interface to your lan than you have to enter there a firewall rule, too.

                1 Reply Last reply Reply Quote 0
                • B
                  Bai Shen
                  last edited by

                  @Metu69salemi:

                  smb and ftp might need some more knowledge, try to use search. There is lot of discussion already in this forum

                  All I really found for smb was this post.

                  http://forum.pfsense.org/index.php/topic,37044.0.html

                  And I have the DNS override settings enabled, and I've tried it with just the ip.  It doesn't work either way.

                  It does mention Samba locking things down by subnet, but how do I check that?

                  @Nachtfalke:

                  If there is no firewall rule on and interface it means, that everything is blocked.
                  So if you would like to allow traffic from LAN to everywhre (WAN, OPT1) then add a firewall rule with:

                  protocol: any
                  source: any OR LAN subnet
                  port: any
                  destination: any
                  destination port: any

                  If you would like to connect from the OPT1 interface to your lan than you have to enter there a firewall rule, too.

                  The default rule already covers this.  I'm not sure why people keep repeating it.

                  And I don't care about going from OPT1 to the LAN.  I just want to be able to connect to a share on OPT1 from the LAN.

                  1 Reply Last reply Reply Quote 0
                  • P
                    Perry
                    last edited by

                    A local firewall on the file server with a wrong range?

                    /Perry
                    doc.pfsense.org

                    1 Reply Last reply Reply Quote 0
                    • B
                      Bai Shen
                      last edited by

                      @Perry:

                      A local firewall on the file server with a wrong range?

                      Tried turning it completely off and still couldn't connect.

                      It looks like smb doesn't work well across subnets.  I'm okay with using FTP instead, but I'm not sure why FTP isn't working either.

                      1 Reply Last reply Reply Quote 0
                      • M
                        Metu69salemi
                        last edited by

                        are you having active or passive ftp?

                        Maybe you should try to create a rule in opt1
                        allow smb traffic from servers to lan subnet

                        1 Reply Last reply Reply Quote 0
                        • B
                          Bai Shen
                          last edited by

                          @Metu69salemi:

                          are you having active or passive ftp?

                          Whatever Filezilla defaults to.  I didn't mess with any of the settings.

                          Maybe you should try to create a rule in opt1
                          allow smb traffic from servers to lan subnet

                          How would that work?  What ports are you saying I should open?

                          1 Reply Last reply Reply Quote 0
                          • M
                            Metu69salemi
                            last edited by

                            Google has the answer. I almost had to find it twice
                            few ports and remember to read that tcp/udp 445 also. it's not in the box

                            1 Reply Last reply Reply Quote 0
                            • B
                              Bai Shen
                              last edited by

                              @Metu69salemi:

                              Google has the answer. I almost had to find it twice
                              few ports and remember to read that tcp/udp 445 also. it's not in the box

                              Since the LAN rule allows the traffic to OPT1, I'm assuming you mean I should open the port from the DMZ side.  Do I really need it if I only want access from the LAN to OPT1?

                              I just tried opening 445 tcp/udp from the server to the LAN subnet and it doesn't seem to have had any effect.  I still can't connect a windows share.

                              I ended up installing CopSSH, and that's working so far, but my transfer speeds are horrible.

                              1 Reply Last reply Reply Quote 0
                              • M
                                Metu69salemi
                                last edited by

                                SMB itself isn't the easiest traffic type to troubleshoot. Thats is the reason why to use opening ports from another interface also. and yes i do know what is the meaning of spi

                                1 Reply Last reply Reply Quote 0
                                • B
                                  Bai Shen
                                  last edited by

                                  @Metu69salemi:

                                  SMB itself isn't the easiest traffic type to troubleshoot. Thats is the reason why to use opening ports from another interface also.

                                  Well, like I said, I opened 445 tcp/udp from the server on OPT1 to LAN and I still can't connect from the LAN.

                                  and yes i do know what is the meaning of spi

                                  Huh?

                                  1 Reply Last reply Reply Quote 0
                                  • M
                                    Metu69salemi
                                    last edited by

                                    spi = Stateful firewall should keep ports open some while if connection is from inbound of it.

                                    Then i have to admit, i don't have a glue what is the problem on this

                                    1 Reply Last reply Reply Quote 0
                                    • B
                                      Bai Shen
                                      last edited by

                                      @Metu69salemi:

                                      spi = Stateful firewall should keep ports open some while if connection is from inbound of it.

                                      Then i have to admit, i don't have a glue what is the problem on this

                                      Me either.  We'll see how things go when I swap out my current box for the new one.

                                      Honestly, it wouldn't be so bad if sftp wasn't so slow.

                                      1 Reply Last reply Reply Quote 0
                                      • P
                                        pcbosrders
                                        last edited by

                                        @Metu69salemi:

                                        smb and ftp might need some more knowledge, try to use search. There is lot of discussion already in this forum

                                        here is some info regarding SMB i'm in the proccess to allow file share between ubuntu and windows
                                        through pfense
                                        this might help on the ports to open

                                        netbios- ns -137/tcp # NETBIOS Name Service
                                        netbios- dgm -138/tcp # NETBIOS Datagram Service
                                        netbios- ssn -139/tcp # NETBIOS Session Service
                                        microsoft-ds -445/tcp #if you are using Active Directory

                                        some other ports that might help
                                        Ports 389/tcp For LDAP
                                        port 445/tcp  NETBOIS was move to 445 after 2000 (CIFS)
                                        port 901/tcp for SWAT service (web gui to configure Samba)

                                        here is a link that i got most of the info i needed also there is a sample ip table
                                        http://www.cyberciti.biz/tips/connecting-linux-unix-system-network-attached-storage-device.html
                                        i know this doesn't have a sample for pfsense but you can get what rules to create from the ip tables

                                        don't fix it, if ain't broken !!!

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