PfSense newbie configuration problem
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Good to know :)
In your opinion, is there any method I should follow to troubleshoot My issue?
Could you please drive me on what I should do to make it working?Thanks!
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One check you haven't mentioned is ping to a public IP address from the pFsense console. What response do you get? (Posting the actual response will probably be more informative than posting something like "it doesn't work".)
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If you don't need firewall in and you have your routing setup correctly, you can go to setup -> advanced -> firewall and disable the firewall.
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One check you haven't mentioned is ping to a public IP address from the pFsense console. What response do you get? (Posting the actual response will probably be more informative than posting something like "it doesn't work".)
Ok. Let me say that I am trying this setup in my office where I am in a very complex network environment that spreads around different countries.
Anyway, if I try to ping a public server (like google.com) I get the same behaviour that I get if I do the same from my host. That's it, ping does not work.
However, if I try to traceroute a public server I can see that somewhere it stops working, and the result is the same from the pfSense console or from my host console. Something like the following result:C:\>ping www.google.com Pinging www.google.com [173.194.35.146] with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for 173.194.35.146: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),This is the traceroute result
C:\>tracert www.google.com Tracing route to www.google.com [173.194.35.146] over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms 10.69.121.2 2 1 ms 1 ms 1 ms 10.72.33.57 3 2 ms 3 ms 2 ms 172.31.190.122 4 12 ms 12 ms 12 ms 172.31.1.250 5 12 ms 11 ms 13 ms 172.31.1.249 6 12 ms 12 ms 12 ms 10.254.141.244 7 11 ms 12 ms 12 ms 10.254.130.114 8 13 ms 13 ms 12 ms 10.254.36.62 9 * * * Request timed out. 10 * * * Request timed out. 11 ^C C:\>I have executed those commands from my host machine but, believe me, the results are the same if I do it from the pfSense console.
If you don't need firewall in and you have your routing setup correctly, you can go to setup -> advanced -> firewall and disable the firewall.
I have tried to disable the firewall going into the webConfigurator, System, Advanced, Firewall/NAT and then I have selected the checbox that says "Disable all packet filtering". Is that correct? In any case it does not work either. Please let me know if you want to know any further detail. Thanks.
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This is the traceroute result
I take it from the preceding text in your reply that the tracert output is taken from one of the VMs that can't reach the internet.
C:\>tracert www.google.com Tracing route to www.google.com [173.194.35.146] over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms 10.69.121.2 This is allegedly on a machine that is using pfSense as its default gateway and gets it IP address from DHCP server running on pfSense LAN interface. Therefore why is the nexthop address on a completely different subnet from the pfSense LAN interface (192.168.83.1/24)? In short, the information you have provided is horribly contradictory. Until you correct that I doubt I can help you. -
Traceroute in Windows (XP sp3 at least) gives the WAN gateway as the first hop:
Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\Steve>tracert google.com Tracing route to google.com [74.125.230.97] over a maximum of 30 hops: 1 5 ms 6 ms 7 ms 217.32.145.233 2 6 ms 5 ms 6 ms 217.32.146.30 3 10 ms 10 ms 10 ms 213.120.181.118 4 10 ms 10 ms 10 ms 217.41.169.203 5 10 ms 10 ms 10 ms 217.41.169.109 6 10 ms 10 ms 10 ms acc2-10GigE-9-2-0.sf.21cn-ipp.bt.net [109.159.251.221] 7 19 ms 18 ms 19 ms core1-te0-2-2-0.ilford.ukcore.bt.net [109.159.251.145] 8 18 ms 18 ms 18 ms peer1-xe3-1-0.telehouse.ukcore.bt.net [109.159.254.213] 9 19 ms 19 ms 19 ms 195.99.125.21 10 15 ms 16 ms 15 ms 209.85.252.188 11 17 ms 17 ms 17 ms 209.85.251.62 12 16 ms 16 ms 16 ms lhr14s01-in-f1.1e100.net [74.125.230.97] Trace complete. C:\Documents and Settings\Steve>ipconfig Windows IP Configuration Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : fire.box IP Address. . . . . . . . . . . . : 192.168.2.10 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.2.1rule 1/0(match): block in on em0: 10.169.121.X.137 > 10.169.121.255.137
This implies your WAN is in 10.169.121.* but that doesn't appear in the traceroute. However 10.69.121.* does, typo?
Steve
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This is allegedly on a machine that is using pfSense as its default gateway and gets it IP address from DHCP server running on pfSense LAN interface. Therefore why is the nexthop address on a completely different subnet from the pfSense LAN interface (192.168.83.1/24)?
In short, the information you have provided is horribly contradictory. Until you correct that I doubt I can help you.I did a mistake I am sorry.
In effect when doing traceroute form my HOST or from the pfSense VM the result is the one I have posted.
When doing traceroute from a VM of the virtual network I just see thisC:\>tracert google.com Tracing route to www.google.com [173.194.35.146] over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms harper.localdomain [192.168.83.1] 2 * * * Request timed out. 3 * * * Request timed out.I am sorry for the mistake…
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This implies your WAN is in 10.169.121.* but that doesn't appear in the traceroute. However 10.69.121.* does, typo?
Steve
I do not know how the network is made because it is very complex and spreads between multiple countries.
What I know for sure is that my IP address (the Host as well as the WAN in the pfSense) is in the family 10.69.121.* and if I traceroute to google I can see that the first hop is the gateway defined statically in the NIC configuration.
Why are you saying that it does'nt appear in traceroute? -
If you are not NATing, then you need to make sure that the upstream routers knows how to route the traffic back to the LAN side of your pfSense machine. If you don't have control of that, then you need to stick with NATing.
In all my traceroutes under 2.1 the LAN of my firewall is the first hop. In your case that should 192.168.83.1. In my traceroutes under 2.0.1, the WAN IP if the pfSense FW is the first. Strange!?.
If you have control over the downstream routers, I would check them to make sure the routing is correct and then test by pinging them. With firewall turned off, there is no rule or NAT problem that will affect packets getting to the destination, only routing issues.
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If you are not NATing, then you need to make sure that the upstream routers knows how to route the traffic back to the LAN side of your pfSense machine. If you don't have control of that, then you need to stick with NATing.
Ok. I am almost sure that I am not NATing.
I went to the webconfigurator, setup -> advanced -> Firewall/NAT
and it is so configured:-
Disable NAT reflection for port forward : Checked
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Reflection timeout: empty
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Disable NAT Reflection for 1:1 NAT: Checked
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Automatically create outbound NAT rules […] : Not Checked
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TFTP Proxy: I have selected the WAN interface and specified proxy params in the Miscellaneous TAB
If you have control over the downstream routers, I would check them to make sure the routing is correct and then test by pinging them. With firewall turned off, there is no rule or NAT problem that will affect packets getting to the destination, only routing issues.
It seems so easy to me to logically understand things that you are explaining :)
But unfortunately I am not able to troubleshoot routing issues :-[
Could you please drive me in applying your suggestion? Thanks -
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In all my traceroutes under 2.1 the LAN of my firewall is the first hop. In your case that should 192.168.83.1. In my traceroutes under 2.0.1, the WAN IP if the pfSense FW is the first. Strange!?
Indeed I thought it should show the pfSense machine as the first hop but it doesn't. :-\
Ok. I am almost sure that I am not NATing.
I went to the webconfigurator, setup -> advanced -> Firewall/NAT
and it is so configured:Automatically create outbound NAT rules […] : Not Checked
If you have turned off outbound NAT, and it looks like you have, then you will need to have all your routing tables correct or nothing knows where to go. Ping replies from your second hop do not have a route back your internal machines.
I suggest your turn Auto Outbound NAT back on unless you really need to have it disabled.
Steve
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If you are going to get NAT going, you need to uncheck the option to disable all firewall filtering. This will turn NAT back on so that you can use Automatic NAT.
The thing is that every router behind your public IP (which is doing the main NAT), is going to have to know how to route 192.168.83 to your pfSense machine. Without that, you are not going to get this working. (IF you are not NATing)
okay, so the main confusion is if you are going to NAT or not, firewall or not. Once you let us know, then we can help further. Otherwise, we are going to talk in generalities to help you make up your mind on NATing or not. It can be done either way, its just that the config is very different.
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The thing is that every router behind your public IP (which is doing the main NAT), is going to have to know how to route 192.168.83 to your pfSense machine. Without that, you are not going to get this working. (IF you are not NATing)
...Well… I thought to this very very long time, and at the end, came to the decision to use NAT (mainly because I cannot ask nobody to configure routers behind my WAN...)
Which parameters should I setup?:)
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Okay … in advanced setup -> uncheck the option to disable firewalling. Save and apply.
Then head to firewall -> advanced outbound NAT and select auto. Save and apply.
After that, head to firewall -> rules -> LAN. Setup a rule to allow any protocol with source LAN subnet to Any/Any. Save and apply.
Then go to Services -> DHCP and enable that on LAN. give is a range like 192.168.83.50-250. save and apply.
reboot the FW.Get on a machine behind the FW and trace route to www.google.com and see how far your get.
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Okay … in advanced setup -> uncheck the option to disable firewalling. Save and apply.
Done!
Then head to firewall -> advanced outbound NAT and select auto. Save and apply.
Do you mean the tab Firewall/NAT on the Advanced Setup page?
I went to System - > Advanced Setup and then to the Firewall/NAT tab.
These are my settings now
After that, head to firewall -> rules -> LAN. Setup a rule to allow any protocol with source LAN subnet to Any/Any. Save and apply.
Here it is!
Then go to Services -> DHCP and enable that on LAN. give is a range like 192.168.83.50-250. save and apply.
reboot the FW.Done!
Get on a machine behind the FW and trace route to www.google.com and see how far your get.
I have tried. Now i am able to traceroute any public server. I can see that, respect to traceroute when done from the HOST, now the first hop is the pfSense router itself. Very good. Unfortunately anyway I am not able to navigate on the internet. I have used Fiddler to see what's going on and I can see that the request terminate with HTTP 502 - Connection Failed.
I suspect that is the proxy server…
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Do you mean the tab Firewall/NAT on the Advanced Setup page?
Yes I do. Not the Advanced in system setup.
Error 502 does seem to be a proxy stopping the connection (lists as bad gateway).
Check your DNS settings on the FW to make sure you websites are resolving correctly. Can you get to a page that other Clients can get to as well?
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Do you mean the tab Firewall/NAT on the Advanced Setup page?
Yes I do. Not the Advanced in system setup.
Error 502 does seem to be a proxy stopping the connection (lists as bad gateway).
Check your DNS settings on the FW to make sure you websites are resolving correctly. Can you get to a page that other Clients can get to as well?
For other reasons this morning I was trying to install wget.
So from the pfSense box I've choosen "8 - Shell" and then:-
Went to /etc/csh.cshrc to setup http_proxy, https_proxy and ftp_proxy environment variables
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restarted the box
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Again to the shell I have tried to install wget with the command /usr/sbin/pkg_add -r wget
The result really surprised me.
Error: Unable to get to ftp://ftp.freebsd.org/......: No address record pkg_add: Unable to fetch 'ftp://ftp.freebsd.org/.....' by URLthis seems to be a nameserver problem. Right? my resolv.conf file seems to have right values anyway
domain localdomain nameserver 127.0.0.1 nameserver 10.182.209.132 nameserver 10.254.49.133 nameserver 8.8.8.8 nameserver 8.8.4.4I dont understand what the "domain" entry and the "nameserver 127.0.0.1" are for, but I guess their presence shall not be a problem….Do I am right?
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Ok here is the thing - you mention your in a large network right.
Large networks quite often do a few things for security reasons. 1 they normally only allow a proxy internet access, so to get to the internet you have to use that proxy. Direct internet access is blocked - only the proxy is allowed internet access.
2 they normally block dns, your local dns you point to - ie those 10.182 and 10.254 IPs more than likely don't even resolve public domains. quick enough to check, using nslookup or dig - do a query to them directly for outside something, www.google.com, ftp.freebsd.org, etc. Along with not allowing the local nameservers to resolve public domains they normally do not allow you to query outside dns, ie the those googledns you have there at 8.8.8.8
This is common practice for corp networks. Why you would need to run a router/firewall inside your corp network without support and details from corp IT is beyond me.
But unless you bounce off your corp proxy is more than likely your never getting off the corp network.
So does your workstation have internet access? If so look to see what proxy your browser is pointing to.
you state
"Now i am able to traceroute any public server"
Lets see this! And what are you using for your dns? You doing this from your PC or pfsense? Please post the details of where you doing this traceroute ip address, gateway and nameserves - along with the full trace to www.google.com – here is example
C:\Windows\system32>tracert www.google.com Tracing route to www.google.com [74.125.225.210] over a maximum of 30 hops: 1 2 ms <1 ms <1 ms pfsense.local.lan [192.168.1.253] 2 28 ms 28 ms 29 ms c-24-13-176-1.hsd1.il.comcast.net [24.13.176.1] 3 13 ms 10 ms 11 ms te-1-2-ur07.mtprospect.il.chicago.comcast.net [68.85.131.149] 4 11 ms 11 ms 9 ms te-8-4-ur08.mtprospect.il.chicago.comcast.net [68.86.187.202] 5 16 ms 15 ms 15 ms te-1-2-0-5-ar01.area4.il.chicago.comcast.net [68.87.230.53] 6 15 ms 23 ms 23 ms pos-3-10-0-0-cr01.350ecermak.il.ibone.comcast.net [68.86.93.181] 7 12 ms 14 ms 16 ms pos-1-8-0-0-pe01.350ecermak.il.ibone.comcast.net [68.86.87.166] 8 21 ms 12 ms 13 ms 66.208.228.202 9 13 ms 13 ms 28 ms 209.85.254.128 10 13 ms 13 ms 27 ms 72.14.237.130 11 25 ms 23 ms 24 ms 209.85.241.22 12 66 ms 33 ms 34 ms 72.14.239.49 13 32 ms 34 ms 37 ms 216.239.46.149 14 33 ms 33 ms 34 ms 209.85.251.111 15 34 ms 34 ms 33 ms den03s06-in-f18.1e100.net [74.125.225.210] Trace complete. -
For the record you can just use fetch instead of wget and it's already installed.
Also the pkg source location is now out of date for 2.0.1 so you have to specify the full path to the file. E.g.
pkg_add -r ftp://ftp-archive.freebsd.org/pub/FreeBSD-Archive/ports/i386/packages-8.1-release/Latest/wget.tbzAlso if ftp is blocked upstream you can use http instead:
pkg_add -r http://ftp-archive.freebsd.org/pub/FreeBSD-Archive/ports/i386/packages-8.1-release/Latest/wget.tbzSteve
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what johnpoz says is very true of corporate networks. I would use a DNS server other than corporate if I was going to try to get around security. Most likely they have it so that only certain IP or users can even get to the internet. Can you get to local web servers? They may even have a captive portal or something.
