Problem with NAT. Can't forward port from WAN to LAN.
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Thanks - I have fixed it after reading the 2.2 manual (worth every penny of the gold subscription by the way) - the problem appears to be solved by creating a Virtual IP assigned to the address that I wanted to NAT into the LAN. Deleting and then recreating the NAT rule gave me the option of using the VIP address as the WAN destination … and voila! It works!
Network wrangling is not my day job so my guess at what was happening may not be correct but I'll post what I think was happening...
The firewall was on 68.224.223.179 but I was trying to redirect 68.224.223.183 - the clue was that the firewall log never showed anything coming in - reading the manual I started to see that the pfSense address is just that, a single IP address and the packets that I wanted to NAT were never arriving on that address. So they never got logged of course.
My thinking originally was thrown off because I have OPT1 bridged with the pfSense WAN address and a server on OPT1 works fine - but then it's bridged on the WAN side so it would wouldn't it?
Thanks for taking the time to look at the problem - I appreciate all the help that I've received here.
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Thank you. Thank you. Thank you. Thank you. Thank you. Thank you.
You just solved my issue with the Virtual IP.
I've spent weeks trying to get this working. -
Sorry if I can't post my question here, but I have a similar problem. I'm using PFSense 2.1.5 and it working in all other sites with NAT, MultiWan, etc. But now we have a customer where it's not working.
"Yes, I had RTFM Port Forward Troubleshooting, but it is not helped.Tried google forum, wiki, etc., and my brain is overheated, but i cant find solution :c"
Cenario:
MODEM in Bridge Mode -> (WAN: VALID IP) PFSENSE (LAN: 192.168.10.252) -> LAN -> HOST (IP: 192.168.10.251)
NAT
Interface: WAN
Protocol: TCP/UDP
DST: WAN_Address
DST Port: 43390
Redirect: 192.168.10.251
Redirect Port: 3389
Create new associated filter ruleWAN
Pass
Interface: WAN
TCP/UDP
From: Any
DST: 192.168.10.251
DST Port: 3389LAN
Allow everything from LAN NET to ANY.===================
I tried with other NAT but no one works. VPN also don't work in this installation. I've tried with 2 different ISPs, one with Dynamic Address and other with fixed IP. All of them in bridge and not blocking services. I've tried with other Router and it works.
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I run a TCPDUMP in on of our PFsense where NAT is working and I have:
There are a return from PFSense IP when communication.
On this PFSense where NAT doesn't work the TCPDUMP shows:
tcpdump -ni igb0 | grep 43390
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on igb0, link-type EN10MB (Ethernet), capture size 96 bytes
22:55:12.593966 IP 177.143.120.78.35814 > 200.200.200.200.43390: Flags [ S ], seq 1345026210, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0
22:55:15.591285 IP 177.143.120.78.35814 > 200.200.200.200.43390: Flags [ S ], seq 1345026210, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0
22:55:21.585046 IP 177.143.120.78.35814 > 200.200.200.200.43390: Flags [ S ], seq 1345026210, win 8192, options [mss 1460,nop,nop,sackOK], length 0There are no return from host.
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I've tried everything. Inicially I'm using LoadBalance and two links, now I disabled the second link, delete LoadBalance and the problem persist.
Any help ?
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Check the default gateway on 192.168.10.251
Check the software firewall on 192.168.10.251 -
Thanks for fast reply.
I already did it. The gateway is pointing to 192.168.10.252 wich is the LAN IP of PFSense
Firewall Disabled.The RDP access work fine from LAN.
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Working from LAN means nothing. Check the firewall on the host to be sure it allows connections from OTHER THAN LAN.
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The Firewall on Host is disabled.
The Antivirus is disabled.
I also tried with other Windows Server on the network, same problem.
And tried with other service (DVR) in other host, same problem.
Thanks for helping !
Sorry for my poor english. -
Well, there's not much else to a port forward, so it has to be something. Does tcpdump on LAN show the SYNs going from 177.143.120.78 to 192.168.10.251:3389? What states are created? (Diagnostics > States).
Load sharing… Are you sure you have the port forward on the interface that has the IP specified? Are the clients connecting to the right interface?
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I'm new with PFSense and TCPDump, sorry if it's not what you ask.
I Run TCPDump and try to connect with RDP.
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em1 -> LAN[2.1.5-RELEASE][root@host]/root(14): tcpdump -ni em1 | grep 192.168.10.251.3389
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on em1, link-type EN10MB (Ethernet), capture size 96 bytes
23:36:44.807796 IP 177.143.120.78.45783 > 192.168.10.251.3389: Flags [ S ], seq 3165976847, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0
23:36:44.807877 IP 192.168.10.251.3389 > 177.143.120.78.45783: Flags [S.], seq 3448840707, ack 3165976848, win 16384, options [mss 1460,nop,wscale 0,nop,nop,sackOK], length 0
23:36:44.832998 IP 177.143.120.78.45783 > 192.168.10.251.3389: Flags [.], ack 1, win 4380, length 0
23:36:44.833113 IP 192.168.10.251.3389 > 177.143.120.78.45783: Flags [R], seq 3448840708, win 0, length 0
23:36:44.839389 IP 177.143.120.78.45783 > 192.168.10.251.3389: Flags [P.], ack 1, win 4380, length 19
23:36:44.839444 IP 192.168.10.251.3389 > 177.143.120.78.45783: Flags [R], seq 3448840708, win 0, length 0======================
[2.1.5-RELEASE][root@macfw001.macco.local]/root(12): tcpdump -ni em1 | grep 177.143.120.78
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on em1, link-type EN10MB (Ethernet), capture size 96 bytes
23:35:59.469877 IP 177.143.120.78.46898 > 192.168.10.251.3389: Flags [ S ], seq 1760568614, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0
23:35:59.469985 IP 192.168.10.251.3389 > 177.143.120.78.46898: Flags [S.], seq 408005352, ack 1760568615, win 16384, options [mss 1460,nop,wscale 0,nop,nop,sackOK], length 0
23:35:59.492434 IP 177.143.120.78.46898 > 192.168.10.251.3389: Flags [.], ack 1, win 4380, length 0
23:35:59.492551 IP 192.168.10.251.3389 > 177.143.120.78.46898: Flags [R], seq 408005353, win 0, length 0
23:35:59.505291 IP 177.143.120.78.46898 > 192.168.10.251.3389: Flags [P.], ack 1, win 4380, length 19
23:35:59.505347 IP 192.168.10.251.3389 > 177.143.120.78.46898: Flags [R], seq 408005353, win 0, length 0
23:36:00.260803 IP 177.143.120.78.33622 > 192.168.10.251.59387: UDP, length 97
23:36:00.289429 IP 177.143.120.78.33622 > 192.168.10.251.59387: UDP, length 40
23:36:00.289537 IP 192.168.10.251.59387 > 177.143.120.78.33622: UDP, length 52
23:36:05.662522 IP 177.143.120.78.39432 > 192.168.10.251.3389: Flags [ S ], seq 871328353, win 8192, options [mss 1460,nop,wscale 2,nop,nop,sackOK], length 0
23:36:05.662592 IP 192.168.10.251.3389 > 177.143.120.78.39432: Flags [S.], seq 939867809, ack 871328354, win 16384, options [mss 1460,nop,wscale 0,nop,nop,sackOK], length 0
23:36:05.684492 IP 177.143.120.78.39432 > 192.168.10.251.3389: Flags [.], ack 1, win 4380, length 0
23:36:05.684594 IP 192.168.10.251.3389 > 177.143.120.78.39432: Flags [R], seq 939867810, win 0, length 0
23:36:05.691017 IP 177.143.120.78.39432 > 192.168.10.251.3389: Flags [P.], ack 1, win 4380, length 19
23:36:05.691078 IP 192.168.10.251.3389 > 177.143.120.78.39432: Flags [R], seq 939867810, win 0, length 0
^C189 packets captured
191 packets received by filter
0 packets dropped by kernel=======================
There are just a LAN interface, it's connected in the LAN Switch and all Hosts are surfing ok, accessing PFSense as gateway and Proxy/Squid/SquidGuard is working fine.
STATES with 177.143.120.78 (Filtered)
tcp 200.200.200.200:40022 <- 177.143.120.78:48036 ESTABLISHED:ESTABLISHED
udp 177.143.120.78:33622 <- 192.168.10.251:59387 MULTIPLE:MULTIPLE
udp 192.168.10.251:59387 -> 200.200.200.200:30913 -> 177.143.120.78:33622 MULTIPLE:MULTIPLE
tcp 200.200.200.200:40443 <- 177.143.120.78:36373 TIME_WAIT:TIME_WAIT
tcp 200.200.200.200:40443 <- 177.143.120.78:42641 ESTABLISHED:ESTABLISHED
tcp 200.200.200.200:40443 <- 177.143.120.78:49046 TIME_WAIT:TIME_WAIT
tcp 200.200.200.200:40443 <- 177.143.120.78:46285 ESTABLISHED:ESTABLISHED -
Image with the Rule and NAT.
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I guess I give up. I could do the same port forward 1000 times and it would work every time.
Your network is in an extremely insecure state right now.
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It looks like the NAT is working, to me. No idea why you can't establish a session.
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I put the network in this open situation for testing this NAT problem.
Thanks a lot for you help. I think I'll try to reinstall PFSense.
Regards,
Wellington
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"23:35:59.492551 IP 192.168.10.251.3389 > 177.143.120.78.46898: Flags [R], seq 408005353, win 0, length 0"
Sure looks like box your trying to rdp to, and was correctly forwarded by pfsense is sending RESET
So what does that have to do with pfsense?? Why don't you download the sniff and open it in wireshark.. But you need to look on the box to see why its sending RESET!!
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Probably disallowing connections from foreign networks but he doesn't want to listen. "It works fine from LAN."
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Hi farion
Your dropbox-links are annoying, because they are no longer available - and therefore other users can not benefit from this post: your pictures are missing now :-(
It would help if you just attach pictures to your posts as other users are doing.
Thanks a lot in advance,
kind regards,
Tom