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Can't forward port

2K views 20 replies 3 participants last post by  GentleArrow 
#1 ·
Hello guys,
I have a big issue. I'm trying to forward port on a VM but I even cant on my computer... Canyouseeme sais timout ! I tried 5858 but also 80, id didnt work.
I have disabled my firewall in computer and in VM and I opened TCP/UPD 5858 on my router box panel.:banghead:
Help please thanks :smile::flowers::cry::popcorn:
 
#3 ·
Thanks :)
I have a Livebox (from Orange France), I dont know where is the model...
What are the rules ? I am using TCP/UDP !
Here is the tracert yahoo.com :
Code:
Tracing route to yahoo.com [2001:4998:c:a06::2:4008]
over a maximum of 30 hops:

  1     2 ms     2 ms     1 ms  livebox.home [2a01:cb04:447:d200:ba26:6cff:fe44:72b2]
  2    21 ms    10 ms    15 ms  2a01cb08a00402010193025300740078.ipv6.abo.wanadoo.fr [2a01:cb08:a004:201:193:253:74:78] 
  3     8 ms     8 ms     8 ms  2a01:cfc4:0:300::b
  4    16 ms    13 ms     8 ms  2a01:cfc4:0:300::9
  5     *        *        *     Request timed out.
  6    16 ms    15 ms    16 ms  gi1-0-0.loncr1.London.opentransit.net [2001:688:0:2:5::ca]
  7     *        *        *     Request timed out.
  8   124 ms   119 ms   124 ms  10ge15-1.core1.dub1.he.net [2001:470:0:d0::2]
  9   131 ms   129 ms   131 ms  xe-0-0-9.pat2.iry.yahoo.com [2001:7f8:18::65]
 10   130 ms   132 ms   130 ms  2a00:1288:f020::
 11   196 ms   197 ms   196 ms  2001:4998:f01c:f::
 12   216 ms   212 ms   215 ms  2001:4998:f00d:3::
 13   231 ms   231 ms   226 ms  ae-8.pat2.dnx.yahoo.com [2001:4998:f00d:4::1]
 14   251 ms   255 ms   250 ms  ae-6.pat2.gqb.yahoo.com [2001:4998:f00f:200::]
 15   268 ms   247 ms     *     et-18-1-0.msr2.gq1.yahoo.com [2001:4998:f00f:209::1]
 16   251 ms   254 ms   243 ms  et-1-0-0.clr1-a-gdc.gq1.yahoo.com [2001:4998:c:fc20::1]
 17   258 ms   256 ms   260 ms  v6.et-18-1.fab3-1-gdc.gq1.yahoo.com [2001:4998:c:fa37::1]
 18   249 ms   256 ms   253 ms  2001:4998:c:ee06::1
 19   257 ms   256 ms   256 ms  ir1.fp.vip.gq1.yahoo.com [2001:4998:c:a06::2:4008]

Trace complete.
 
#4 ·
First, it looks like you have IPv6 enabled. Can you disable that and repeat the trace?

"I opened TCP/UPD 5858 on my router box panel."

Did you open the port or forward it? Forwarding it means directing it to a specific IP on your computer. See here for instructions.

What are you actually trying to do? Get Teamspeak to work? What do you need 5858 for?
 
#6 ·
How do you know IPv4 is not enabled? Not saying you are wrong, just curios. I assumed if it was disabled he wouldn't have been able to get online to run the port scan to begin with. Very few sites work on IPv6 only. I think Windows 7 and after does a IPv6 query for the domain first, since that is higher in the IP stack. That is why it's a good idea to disable IPv6 if your ISP doesn't support it, since the IPv6 request has to go through and be denied before it tries IPv4.
 
#8 ·
Thanks guys. I'm actually studying cybersecurity, I will use remote administration tools. I need to understand how ports work.

There is in the conf panel : "Ouverture de port(s) dans le firewall IPv6" that means : OPEN ports.

Sorry, I still don't understand the difference between port forwarding and opening, do you have concrete cases please ? I searched on Google and didnt understand :/

Still with IPv6 :
Code:
C:\Users\Theo>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : LAPTOP-RLG6C9UQ
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : home

Wireless LAN adapter Local Area Connection* 2:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
   Physical Address. . . . . . . . . : 44-85-00-D8-62-48
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter VMware Network Adapter VMnet1:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet1
   Physical Address. . . . . . . . . : 00-50-56-C0-00-01
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::a99d:d0e8:88a4:2ca4%30(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.213.1(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Monday, February 20, 2017 8:45:37 PM
   Lease Expires . . . . . . . . . . : Monday, February 20, 2017 9:45:37 PM
   Default Gateway . . . . . . . . . :
   DHCP Server . . . . . . . . . . . : 192.168.213.254
   DHCPv6 IAID . . . . . . . . . . . : 503337046
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-0E-F5-8E-44-85-00-D8-62-47
   DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                       fec0:0:0:ffff::2%1
                                       fec0:0:0:ffff::3%1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VMware Network Adapter VMnet8:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet8
   Physical Address. . . . . . . . . : 00-50-56-C0-00-08
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::79ed:c85c:c0fb:c097%31(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.220.1(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Monday, February 20, 2017 8:45:37 PM
   Lease Expires . . . . . . . . . . : Monday, February 20, 2017 9:45:38 PM
   Default Gateway . . . . . . . . . :
   DHCP Server . . . . . . . . . . . : 192.168.220.254
   DHCPv6 IAID . . . . . . . . . . . : 520114262
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-0E-F5-8E-44-85-00-D8-62-47
   DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                       fec0:0:0:ffff::2%1
                                       fec0:0:0:ffff::3%1
   Primary WINS Server . . . . . . . : 192.168.220.2
   NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wi-Fi:

   Connection-specific DNS Suffix  . : home
   Description . . . . . . . . . . . : Intel(R) Dual Band Wireless-AC 8260
   Physical Address. . . . . . . . . : 44-85-00-D8-62-47
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2a01:cb04:447:d200:d5e0:d3c3:ed41:ff47(Preferred)
   Temporary IPv6 Address. . . . . . : 2a01:cb04:447:d200:2806:a45:4486:f0a8(Preferred)
   Link-local IPv6 Address . . . . . : fe80::d5e0:d3c3:ed41:ff47%17(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.21(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Monday, February 20, 2017 8:47:11 PM
   Lease Expires . . . . . . . . . . : Tuesday, February 21, 2017 8:47:11 PM
   Default Gateway . . . . . . . . . : fe80::ba26:6cff:fe44:72b2%17
                                       192.168.1.1
   DHCP Server . . . . . . . . . . . : 192.168.1.1
   DHCPv6 IAID . . . . . . . . . . . : 105153792
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-0E-F5-8E-44-85-00-D8-62-47
   DNS Servers . . . . . . . . . . . : 192.168.1.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.home:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : home
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{78197538-65E2-4D5B-BC04-9A2200659D99}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{AE63C1FC-C55E-4CB6-8CF5-CEE8CD0CA685}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
When I stop IPv6 :
Code:
C:\Users\Theo>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : LAPTOP-RLG6C9UQ
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : home

Wireless LAN adapter Local Area Connection* 2:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
   Physical Address. . . . . . . . . : 44-85-00-D8-62-48
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter VMware Network Adapter VMnet1:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet1
   Physical Address. . . . . . . . . : 00-50-56-C0-00-01
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::a99d:d0e8:88a4:2ca4%30(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.213.1(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Monday, February 20, 2017 8:45:37 PM
   Lease Expires . . . . . . . . . . : Monday, February 20, 2017 10:00:37 PM
   Default Gateway . . . . . . . . . :
   DHCP Server . . . . . . . . . . . : 192.168.213.254
   DHCPv6 IAID . . . . . . . . . . . : 503337046
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-0E-F5-8E-44-85-00-D8-62-47
   DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                       fec0:0:0:ffff::2%1
                                       fec0:0:0:ffff::3%1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VMware Network Adapter VMnet8:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet8
   Physical Address. . . . . . . . . : 00-50-56-C0-00-08
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::79ed:c85c:c0fb:c097%31(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.220.1(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Monday, February 20, 2017 8:45:37 PM
   Lease Expires . . . . . . . . . . : Monday, February 20, 2017 10:00:38 PM
   Default Gateway . . . . . . . . . :
   DHCP Server . . . . . . . . . . . : 192.168.220.254
   DHCPv6 IAID . . . . . . . . . . . : 520114262
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-0E-F5-8E-44-85-00-D8-62-47
   DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                       fec0:0:0:ffff::2%1
                                       fec0:0:0:ffff::3%1
   Primary WINS Server . . . . . . . : 192.168.220.2
   NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wi-Fi:

   Connection-specific DNS Suffix  . : home
   Description . . . . . . . . . . . : Intel(R) Dual Band Wireless-AC 8260
   Physical Address. . . . . . . . . : 44-85-00-D8-62-47
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Temporary IPv6 Address. . . . . . : 2a01:cb04:447:d200:2806:a45:4486:f0a8(Deprecated)
   IPv6 Address. . . . . . . . . . . : 2a01:cb04:447:d200:d5e0:d3c3:ed41:ff47(Deprecated)
   Link-local IPv6 Address . . . . . : fe80::d5e0:d3c3:ed41:ff47%17(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.21(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Monday, February 20, 2017 8:47:11 PM
   Lease Expires . . . . . . . . . . : Tuesday, February 21, 2017 8:47:11 PM
   Default Gateway . . . . . . . . . : 192.168.1.1
   DHCP Server . . . . . . . . . . . : 192.168.1.1
   DHCPv6 IAID . . . . . . . . . . . : 105153792
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-0E-F5-8E-44-85-00-D8-62-47
   DNS Servers . . . . . . . . . . . : 192.168.1.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.home:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : home
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{78197538-65E2-4D5B-BC04-9A2200659D99}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{AE63C1FC-C55E-4CB6-8CF5-CEE8CD0CA685}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
The tracert with IPv6 disabled :
Code:
C:\Users\Theo>tracert yahoo.com

Tracing route to yahoo.com [98.139.183.24]
over a maximum of 30 hops:

  1     3 ms     1 ms     1 ms  livebox.home [192.168.1.1]
  2    19 ms     7 ms     7 ms  80.10.235.137
  3    35 ms    37 ms    40 ms  ae115-0.ncidf204.Paris.francetelecom.net [193.253.81.202]
  4    12 ms     7 ms     7 ms  ae41-0.niidf202.Paris.francetelecom.net [193.252.98.177]
  5    36 ms     9 ms     7 ms  193.252.137.74
  6     *        *        *     Request timed out.
  7     *        *        *     Request timed out.
  8    99 ms   101 ms   103 ms  YAHOO-INC.ear3.NewYork1.Level3.net [4.15.212.174]
  9   114 ms   105 ms   106 ms  et-19-0-0.pat1.bfz.yahoo.com [216.115.97.103]
 10   101 ms   101 ms   101 ms  et-0-0-0.msr2.bf1.yahoo.com [74.6.227.137]
 11    94 ms    97 ms    94 ms  et-19-0-0.clr2-a-gdc.bf1.yahoo.com [74.6.122.37]
 12    96 ms    94 ms    96 ms  po8.fab3-1-gdc.bf1.yahoo.com [72.30.22.37]
 13   107 ms   111 ms   133 ms  po-11.bas2-7-prd.bf1.yahoo.com [98.139.129.179]
 14   105 ms    98 ms    96 ms  ir2.fp.vip.bf1.yahoo.com [98.139.183.24]

Trace complete.
 
#10 ·
thanks,
sry I dont understand ?
what message ?
What does " Your not trying to get anything to work?" mean please?

I ve already send to you in my preview post some console stuff with IPv6 disabled.

I really don't understand, what firewall ? Do I have firewall for each IP ? Maybe its off because ip6 is disabled.
 
#13 ·
Your OP sounded like you were forwarding a specific port for a reason. Where did the port 5858 come from? Just something off the top of your head?

In order to explain what ports are, something you don't know, I first need to know what you DO know. Do you have any networking experience? Do you have a understanding on how IP and DNS works? I don't mind answering questions, but I need to know where to start and how to word my answers.
 
#14 ·
Thanks a lot :)
Yes I just invented it :grin: Because in the remote administration tool I can set whatever I want, 5858 was nothing used by default (like 21, 80 etc...) so I took it.

I did learn Networks basics at School (based on Cisco program) but I didn't understand much... I dont know how DNS works. I dont understand why IP is a protocol... For me it is like MAC, IP might be an adress the computer give to the router to identify... idk :ermm:

I totaly do not understand what is a port and what it is used for... I know I use 21 for FTP :angel:

Networks are a dark topic for me, because I think this is abstract, I need concrete things to understand but the lessons do not explains from scratch I meen what physically happen, so Im lost. And I need to know why before how to understand things...
 
#15 ·
One way to think of port forwarding is like office phone system. In that office, there is a receptionist that answers the phone and directs the calls to the phone extensions for the specific offices. If someone calls and asks for Bob, then they forward the call to ext. 101. This is because they have a list of people's names and their extensions. Port forwarding works in a similar way. The router acts as the receptionist, separating the local network from the public network, AKA the internet. Instead of a list of people's name and extensions, it connects different internet traffic types with the IP of the computer the router should forward it to. Forwarding the port is like saying every time someone calls for Bob, to ONLY transfer it to his office. A port trigger is like saying every time someone calls for Jill, the supervisor, the call rings every phone until Jill picks up from what ever office she happens to be in.

To use this example, lets say someone was setting up a security web camera on their network. The public IP(68.x.x.x) your router gets from the ISP is like the phone number of the business and the private 192.x.x.x IP of the camera gets from the router is like a office exstention. So to forward the port, you set the router to direct any request for specific traffic to the private IP of the camera. The type of traffic is determined by the port number.

You seem to already know that ports are broken into 3 groups; well known, registered, and private ports. Well known ports are like TCP port 80 for HTTP, AKA the protocol used by browsers to see websites. Registered ports are like well known ports where the protocols and the port are usually the same, but registered ports CAN be used for something else if configured that way. For example, port 8080 is typically used for remote access, however it can also be configured for a alternate port for HTTP, where port 80 can NOT be configured to receive POP3(AKA email).
 
#16 ·
:popcorn:


Thanks alotalotalot :dance:


it connects different internet traffic types with the IP of the computer the router should forward it to
How does it do that ?

The IP is the phone number of the external caller which want to call FTP ? And it sais in the packet I want to call FTP (with 21) so the router knows ?
And what doest "connects different internet traffic" mean ?

Why we are obliged to do that ? Why it is not automated ? Can the information in packets be mingled (confused with other) ?

Who is Jill in networks ?

ISP "is" a phone number like FTP was previously ?

So to forward the port, you set the router to direct any request for specific traffic to the private IP of the camera.
I understand !! :thumb: So it means I have to put IP + port in the router. Then open port is not that at all because I have to put only the port hum ? But why do I need to put ip and port ? Why is it not automatic... if I send packet with the port to request ... I dont understand... Ive never forwarded anything to use my FTP on 21, HTTP on 80 etc... Fillezilla ask me witch port I use and so that I presume it sends a packet to the rooter.

Nope I didnt know the 3 groups, Ive never paid attention to that.

where the protocols and the port are usually the same
I dont understand.

And what happen if I use the remote on 21 or 80 ?
 
#19 ·
Just fix my questions then :whistling:

This is different than you going to a remote secure server. In that case you would put the wan ip address and the port number the remote service has been configured to use in this form: 100.10.1.1:8080 which is the target ip address and the port configured for the remote access service.

It takes a running program using a particular port or ports for those ports to be reported as open [test program/port checker gets a response when testing the port (are you there? yes I am)].
I think I need this. So I need to open, thats why I used the opening features of my Livebox. Sorry for the title guys.


Thx for the link.

Why do you say no internet for VMs ?
 
#18 · (Edited)
Forwarding is inbound only not outbound as in you forward a port or ports to the game you are hosting on your pc for remote friends to access and play on. On their end they just put in your wan ip into the game to connect to the game server.

This is different than you going to a remote secure server. In that case you would put the wan ip address and the port number the remote service has been configured to use in this form: 100.10.1.1:8080 which is the target ip address and the port configured for the remote access service.

It takes a running program using a particular port or ports for those ports to be reported as open [test program/port checker gets a response when testing the port (are you there? yes I am)]. Most ports are not open by default.

To learn more go to portforward.com and review their tutorials or google port forwarding basics.

BTW your VMs have no gateways no internet so no port forwarding
 
#20 ·
I was leaving the door open for someone else's input, which came, because I have difficulty communicating what I know in layman's terms. I rely on metaphors, which don't work well for something as detail rich as packet headers and NAT. If you ask me specific questions, I can try to explain, but without a goal to focus the discussion, I don't know where to begin. :3coffee:
 
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