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    Reflective routing issues w/ 2.0

    Scheduled Pinned Locked Moved
    2.0-RC Snapshot Feedback and Problems - RETIRED
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    • D
      dlstrout
      last edited by

      @ermal:

      can you retry next snapshot.

      I am testing SNAP:

      http://snapshots.pfsense.org/FreeBSD7/RELENG_1/pfSense-Full-Update-2.0-ALPHA-ALPHA-20081116-1850.tgz

      Will be back with an update shortly.

      1 Reply Last reply Reply Quote 0
      • D
        dlstrout
        last edited by

        @ermal:

        can you retry next snapshot.

        No luck.  It passes on test 1&2 (ping and traceroute), but I cannot VNC or SSH into the VE segment to either of the hosts VE1 or 2.

        I see the traffic passing the intermediate router (Vyatta) and is see the host getting the packets (via windump on ve2 and tcpdump on VE1) and I see the traffic getting to the default gateway (via pfTop) in the VE segment (pfSense 2.0).

        Then it seem to trigger blocking on the pfSense box and I see the denial of traffic as follows :

        dst(target-VE1)/dst-port(VNC-tcp5900/SSH-tcp22) > src(originator-PE1)/random-port(>1023) == block
        or if you prefer …
        Nov 16 19:46:15  LAN  192.168.22.22:5900  192.168.1.20:33722  TCP

        And when I show the "triggering" rule (click on the "X") .. here's what I get :

        The rule that triggered this action is:

        @3 block drop in log all label "Default deny rule"
        @30 pass in on le0 inet proto udp from any port = bootpc to 192.168.22.2 port = bootps keep state label "allow access to DHCP server"
        @31 pass out on le0 inet proto udp from 192.168.22.2 port = bootps to any port = bootpc keep state label "allow access to DHCP server"
        @32 anchor "spoofing" all
        @33 anchor "loopback" all
        @34 pass in on lo0 all flags S/SA keep state label "pass loopback"
        @35 pass out on lo0 all flags S/SA keep state label "pass loopback"
        @36 anchor "firewallout" all
        @37 pass out all flags S/SA keep state label "let out anything from firewall host itself"
        @38 anchor "anti-lockout" all
        @39 pass in quick on le0 from any to (le0:2) flags S/SA keep state label "anti-lockout rule"

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        • E
          eri--
          last edited by

          can you send me your ruleset and config.xml to ermal @ pfsense nospam .org

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          • D
            dlstrout
            last edited by

            @ermal:

            can you send me your ruleset and config.xml to ermal @ pfsense nospam .org

            I have no issue with posting here either, but can't post a pdf ???, as this environment is torn down and completely segmented from the enterprise facets.

            For all intents and purposes .. the test platform (pfSense 2.0) is basically a "default setup".  The only real configuration data I keep between SNAP updates and configuration restores is the WAN IP (obviously :o)) and the cert and ssh port setup.  The rest of the config is pretty plain jane and default.

            There are two pdf files on their way to you …. and thanks for your assistance on this!!!!!!
            ;D ;D

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            • E
              eri--
              last edited by

              Try next snapshot and tell me how it went.

              1 Reply Last reply Reply Quote 0
              • D
                dlstrout
                last edited by

                @ermal:

                Try next snapshot and tell me how it went.

                I tried the below version when I saw your post and it has the same results …

                Latest Version  : Wed Nov 19 12:52:13 EST 2008

                Sorry .. I forgot to post the results ...

                Nov 20 06:23:56  LAN  192.168.22.22:5900  192.168.1.20:18340  TCP

                The rule that triggered this action is:

                @3 block drop in log all label "Default deny rule"
                @30 anchor "spoofing" all
                @31 anchor "loopback" all
                @32 pass in on lo0 all flags S/SA keep state label "pass loopback"
                @33 pass out on lo0 all flags S/SA keep state label "pass loopback"
                @34 anchor "firewallout" all
                @35 pass out all flags S/SA keep state label "let out anything from firewall host itself"
                @36 anchor "anti-lockout" all
                @37 pass in quick on le0 from any to (le0:2) flags S/SA keep state label "anti-lockout rule"
                @38 anchor "packagelate" all
                @39 block drop in log quick proto tcp from sshlockout:0to any port = rsh-spx label "sshlockout"</sshlockout:0>

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                • E
                  eri--
                  last edited by

                  Not sure which if that update has the change in.
                  Can you check you have rules with 'no state' in them and verify that they have quick in them?

                  1 Reply Last reply Reply Quote 0
                  • D
                    dlstrout
                    last edited by

                    @ermal:

                    Can you check you have rules with 'no state' in them and verify that they have quick in them?

                    Are you talking about all of the rules or just the ones that are getting hit on when I try the test??

                    I will upgrade to SNAP - New version: Thu Nov 20 19:48:23 EST 2008 … and try this one.

                    1 Reply Last reply Reply Quote 0
                    • D
                      dlstrout
                      last edited by

                      @ermal:

                      Can you check you have rules with 'no state' in them and verify that they have quick in them?

                      It is still not working with the latest SNAP - Thu Nov 20 19:19:44 EST 2008

                      Here are the rules:

                      cat /tmp/rules.debug

                      #System aliases

                      loopback = "{ lo0 }"
                      WAN = "{ le1 }"
                      LAN = "{ le0 }"

                      User Aliases

                      netbios = "{ 135 137 138 139 445 }"

                      set loginterface le1
                      set loginterface le0
                      set optimization aggressive
                      set limit states 51000

                      scrub on $WAN all    fragment reassemble
                      scrub on $LAN all    fragment reassemble

                      nat-anchor "ftp-proxy/"
                      nat-anchor "natearly/                      "
                      nat-anchor "natrules/*"

                      Outbound NAT rules

                      Subnets to NAT

                      tonatsubnets  = "{ 192.168.168.0/24 192.168.10.0/26 192.168.22.0/24  }"
                      no nat on $WAN to port tftp
                      nat on $WAN from $tonatsubnets port 500 to any port 500 -> x.x.x.134/32 port 500
                      nat on $WAN from $tonatsubnets port 4500 to any port 4500 -> x.x.x.134/32 port 4500
                      nat on $WAN from $tonatsubnets port 5060 to any port 5060 -> x.x.x.134/32 port 5060
                      nat on $WAN from $tonatsubnets to any -> x.x.x.134/32

                      #SSH Lockout Table
                      table <sshlockout>persist

                      Load balancing anchor

                      rdr-anchor "relayd/*"

                      FTP proxy

                      rdr-anchor "ftp-proxy/"
                      rdr-anchor "tftp-proxy/                      "

                      IMSpector rdr anchor

                      rdr-anchor "imspector"

                      UPnPd rdr anchor

                      rdr-anchor "miniupnpd"

                      anchor "ftpsesame/"
                      anchor "relayd/                      "
                      anchor "firewallrules"
                      #–-------------------------------------------------------------------------

                      default deny rules

                      #---------------------------------------------------------------------------
                      block in log all label "Default deny rule"
                      block out log all label "Default deny rule"

                      We use the mighty pf, we cannot be fooled.

                      block quick proto { tcp, udp } from any port = 0 to any
                      block quick proto { tcp, udp } from any to any port = 0

                      snort2c

                      table <snort2c>persist
                      block quick from <snort2c>to any label "Block snort2c hosts"
                      block quick from any to <snort2c>label "Block snort2c hosts"

                      package manager early specific hook

                      anchor "packageearly"

                      carp

                      anchor "carp"
                      table <virusprot>block in quick from <virusprot>to any label "virusprot overload table"
                      table <bogons>persist file "/etc/bogons"

                      block bogon networks

                      http://www.cymru.com/Documents/bogon-bn-nonagg.txt

                      anchor "wanbogons"
                      block in log quick on $WAN from <bogons>to any label "block bogon networks from WAN"
                      antispoof for le1

                      block anything from private networks on interfaces with the option set

                      antispoof for $WAN
                      block in log quick on $WAN from 10.0.0.0/8 to any label "block private networks from wan block 10/8"
                      block in log quick on $WAN from 127.0.0.0/8 to any label "block private networks from wan block 127/8"
                      block in log quick on $WAN from 172.16.0.0/12 to any label "block private networks from wan block 172.16/12"
                      block in log quick on $WAN from 192.168.0.0/16 to any label "block private networks from wan block 192.168/16"
                      antispoof for le0

                      allow access to DHCP server on LAN

                      anchor "dhcpserverLAN"
                      pass in on $LAN proto udp from any port = 68 to 255.255.255.255 port = 67 label "allow access to DHCP server"
                      pass in on $LAN proto udp from any port = 68 to 192.168.2.2 port = 67 label "allow access to DHCP server"
                      pass out on $LAN proto udp from 192.168.2.2 port = 67 to any port = 68 label "allow access to DHCP server"
                      anchor "spoofing"

                      loopback

                      anchor "loopback"
                      pass in on $loopback all label "pass loopback"
                      pass out on $loopback all label "pass loopback"

                      anchor "firewallout"

                      let out anything from the firewall host itself and decrypted IPsec traffic

                      pass out all keep state label "let out anything from firewall host itself"

                      make sure the user cannot lock himself out of the webConfigurator or SSH

                      anchor "anti-lockout"
                      pass in quick on le0 from any to (le0) keep state label "anti-lockout rule"

                      NAT Reflection rules

                      package manager late specific hook

                      anchor "packagelate"

                      SSH lockout

                      block in log quick proto tcp from <sshlockout>to any port 222 label "sshlockout"
                      anchor "ftp-proxy/*"

                      enable ftp-proxy

                      User-defined aliases follow

                      User-defined rules follow

                      block  in  quick  on $LAN  proto { tcp udp }  from 192.168.2.0/24 to any  port $netbios  label "USER_RULE: block netbios"
                      pass  in  quick  on $LAN  from 192.168.2.0/24 to any keep state  label "USER_RULE: Default allow LAN to any rule"
                      pass  in  quick  on $LAN  from {  192.168.1.0/24 } to 192.168.2.2 keep state  label "USER_RULE"

                      VPN Rules

                      anchor "limitingesr"

                      IMSpector

                      anchor "imspector"

                      uPnPd

                      anchor "miniupnpd"</sshlockout></bogons></bogons></virusprot></virusprot></snort2c></snort2c></snort2c></sshlockout>

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                      • S
                        sullrich
                        last edited by

                        Not sure what ermal is after but no state only appears on rules that are added when "Bypass firewall rules for traffic on the same interface" is checked in System -> Advanced.

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                        • C
                          cmb
                          last edited by

                          the bypass rules aren't even being added anymore in 2.0.

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                          • D
                            dlstrout
                            last edited by

                            @sullrich:

                            Not sure what ermal is after but no state only appears on rules that are added when "Bypass firewall rules for traffic on the same interface" is checked in System -> Advanced.

                            That is what I understood to be the case, and for these tests I don't have that option checked.

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                            • D
                              databeestje
                              last edited by

                              They should be added again after checking it.

                              1 Reply Last reply Reply Quote 0
                              • D
                                dlstrout
                                last edited by

                                I just updated to the latest SNAP:

                                2.0-ALPHA-ALPHA
                                built on Tue Nov 25 14:59:09 EST 2008
                                FreeBSD 7.1-PRERELEASE

                                and the issue still exists.  As before tests one and two pass fine but then I get stopped dead at test three (SSH) and four (VNC test).

                                Here's the logging output …..

                                Nov 27 10:11:56     LAN     192.168.22.22:5900     192.168.1.20:18340     TCP

                                The rule that triggered this action is:

                                @3 block drop in log all label "Default deny rule"
                                @30 anchor "spoofing" all
                                @31 anchor "loopback" all
                                @32 pass in on lo0 all flags S/SA keep state label "pass loopback"
                                @33 pass out on lo0 all flags S/SA keep state label "pass loopback"
                                @34 anchor "firewallout" all
                                @35 pass out all flags S/SA keep state label "let out anything from firewall host itself"
                                @36 anchor "anti-lockout" all
                                @37 pass in quick on le0 from any to (le0:2) flags S/SA keep state label "anti-lockout rule"
                                @38 anchor "packagelate" all
                                @39 block drop in log quick proto tcp from sshlockout:0to any port = rsh-spx label "sshlockout"</sshlockout:0>

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