Unable to connect between lan1 and lan2
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@sutha ^that, start small and work your way up.
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@SteveITS Thanks!
I'm a bit confused, so just to clarify.
When I remove the second interface, how will communication occur from 192.168.50.x to 192.168.60.x ? Typically, for communication within a network, devices need to be on the same network with a unique IP range. For example:PC1:
IP: 192.168.50.100
Subnet: 255.255.255.0
Gateway: 192.168.50.1PC2:
IP: 192.168.60.50
Subnet: 255.255.255.0
Gateway: 192.168.60.1When I want to communicate from PC1 to PC2, I need another IP within the range of PC2. Therefore, I have added another network card to PC1 and assigned the following IP to it:
PC1 - 2nd network card:
IP: 192.168.60.100
Subnet: 255.255.255.0
Gateway: 192.168.60.1 (This is optional)Current situation, I'm able to ping from pfsense diagnostic both devices(Lan1 and Lan2).
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@sutha said in Unable to connect between lan1 and lan2:
how will communication occur from 192.168.50.x to 192.168.60.x
How exactly do you think you communicate with any IP off your network, like google or this forum? it gets routed by your gateway, in the case of the internet your gateway (pfsense) says oh I am not connected to that network, but hey my default route (your isp) I will send the traffic there, and he can figure out how to route it to get where its going.
In the case where its just also attached to pfsense, pfsense say oh you want to go to 192.168.60.x - hey I am attached to that network I will send the traffic to that IP out my interface attached to that network..
Pfsense will say I am attached to 192.168.60/24 - this 192.168.60.x falls into that network, let me arp for that 192.168.60.x address - oh he is at mac address abc.. Send the traffic to that mac address.
I am a bit confused how anyone setting up a router/firewall and adding multiple networks to it doesn't understand that it can route between them?
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@johnpoz
Don't take me wrong, it's my silly question.Normally, I install E-Pos system and connect card machines. Typically, all E-Pos systems have an IP like 192.x.x.100, while card machines have their own IP range like 10.x.x.x.
When I want to connect the card machine, I add an additional IP to my E-Pos system within the range 10.x.x.100 and subnet. This setup usually works fine.
However, in my current situation, I'm unable to add a gateway to route my traffic to the 192.168.60.x network. Pfsense wouldn't allow to create a gateway.
This is where I'm stuck. -
@sutha pfSense doesn’t need a gateway for an internal network. It “knows” where they are.
.60 sends traffic for .50 to its gateway, pfSense, which sends it onto the .50 network.
Broadcast/multicast are different things but ping/tcp/udp work fine.
Edit: you can do it with multiple IPs or NICs but the traffic wouldn’t go through pfSense. And there’s nothing in your scenario to prevent a Pc from adding an IP for the card network.
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@sutha said in Unable to connect between lan1 and lan2:
I add an additional IP to my E-Pos system within the range 10.x.x.100 and subnet.
That only works when both subnets are using the same netwok segment. That isn't the case here, you have two segments with pfSense between them. Also two subnets on one segment is generally considered a bad idea!
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This is my ping result from pfsense diagnostics.
Lan1:
Lan2:
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@sutha that seems fine. Are these networks on different switches?
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@sutha yeah you expect that... Now do the simple sniff test I did to validate pfsense sends the traffic on..
Can almost promise you its a host firewall issue.. If both devices use pfsense as their gateway. And your firewall rule allows client on A to talk to network B, or even just client Bs address then it will send it on.. If you do not get an answer it just SCREAMS!!! that device did not answer..
A simple 10 second test will prove that to you..
Another possible problem is your masks are wrong on the clients.. If say client A is using a /16 mask vs /24, then it would think 192.168.60.x is local and never send the traffic to pfsense. Or even if client A mask puts the 192.168.60.x address on a different network and sends it to pfsense, and pfsense sends it on.. If client Bs mask think 192.168.50.x is on its local network - it will never send its answer back to pfsense.
pfsense would prevent you from creating 2 networks that overlap like that - but maybe you set the IPs manually on the devices and using the wrong mask?
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@SteveITS Yes, They are on different switch. Switch a connected to lan1 and switch b connected to lan2. Therfore, I have opened a rule on both lan "Any to Any".
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@johnpoz Do you think, if I have disabled my total firewall on my system can block anything.
Everyone talking about sniff test, how do I do it. Any instruction. -
@sutha got to packet capture under the diagnostic menu.. pick your interface (destination network interface) and any filters you want to put in like icmp or the IP of one of the devices.. Click start..
Now send your ping from your client in network A to your IP in network B.
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@johnpoz This is my result:
Something is not right.
After sniffing with packet capture, I'm able to capture packets between pfsense only.
My pfsense is on 192.168.50.1, I'll get traffic captured if I send anything to this ip.
Packet capture:
These are my ping result from lan1:
If try my lan2 network, nothing happend.Pfsense:
18:17:41.297565 IP 192.168.50.100 > 192.168.50.1: ICMP echo request, id 1, seq 114, length 40
18:17:41.297603 IP 192.168.50.1 > 192.168.50.100: ICMP echo reply, id 1, seq 114, length 40
18:17:42.316326 IP 192.168.50.100 > 192.168.50.1: ICMP echo request, id 1, seq 115, length 40
18:17:42.316343 IP 192.168.50.1 > 192.168.50.100: ICMP echo reply, id 1, seq 115, length 40
18:17:43.332647 IP 192.168.50.100 > 192.168.50.1: ICMP echo request, id 1, seq 116, length 40
18:17:43.332661 IP 192.168.50.1 > 192.168.50.100: ICMP echo reply, id 1, seq 116, length 40
18:17:44.345138 IP 192.168.50.100 > 192.168.50.1: ICMP echo request, id 1, seq 117, length 40
18:17:44.345153 IP 192.168.50.1 > 192.168.50.100: ICMP echo reply, id 1, seq 117, length 40ISP:
18:17:53.333221 IP 192.168.50.100 > 192.168.1.1: ICMP echo request, id 1, seq 118, length 40
18:17:53.333890 IP 192.168.1.1 > 192.168.50.100: ICMP echo reply, id 1, seq 118, length 40
18:17:54.346585 IP 192.168.50.100 > 192.168.1.1: ICMP echo request, id 1, seq 119, length 40
18:17:54.347073 IP 192.168.1.1 > 192.168.50.100: ICMP echo reply, id 1, seq 119, length 40
18:17:55.362542 IP 192.168.50.100 > 192.168.1.1: ICMP echo request, id 1, seq 120, length 40
18:17:55.363027 IP 192.168.1.1 > 192.168.50.100: ICMP echo reply, id 1, seq 120, length 40
18:17:56.375135 IP 192.168.50.100 > 192.168.1.1: ICMP echo request, id 1, seq 121, length 40
18:17:56.375467 IP 192.168.1.1 > 192.168.50.100: ICMP echo reply, id 1, seq 121, length 40Google:
18:18:28.443341 IP 192.168.50.100 > 142.250.187.195: ICMP echo request, id 1, seq 126, length 40
18:18:28.445510 IP 142.250.187.195 > 192.168.50.100: ICMP echo reply, id 1, seq 126, length 40
18:18:29.459627 IP 192.168.50.100 > 142.250.187.195: ICMP echo request, id 1, seq 127, length 40
18:18:29.461912 IP 142.250.187.195 > 192.168.50.100: ICMP echo reply, id 1, seq 127, length 40
18:18:30.478792 IP 192.168.50.100 > 142.250.187.195: ICMP echo request, id 1, seq 128, length 40
18:18:30.481679 IP 142.250.187.195 > 192.168.50.100: ICMP echo reply, id 1, seq 128, length 40
18:18:31.498252 IP 192.168.50.100 > 142.250.187.195: ICMP echo request, id 1, seq 129, length 40
18:18:31.501290 IP 142.250.187.195 > 192.168.50.100: ICMP echo reply, id 1, seq 129, length 40
18:20:27.374903 IP 192.168.50.100 > 192.168.50.1: ICMP 192.168.50.100 udp port 52048 unreachable, length 286 -
@sutha These all ping belongs to lan1 port, even if I try to ping another pc on the same network. I'll get a ping result on command prompt but nothing will be captured.
Lan2 port got nothing captured. -
If you are trying to ping something on LAN2 from 192.168.50.100 and it doesn't appear in that capture then the client is not sending it to the gateway.
It would only do that if it has a bad route to that subnet. So if it has the wrong subnet mask. Or if it is still dual homed with a second IP in that subnet.
What error is shown on on the host when it fails?
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@sutha So sniffing on the lan interface, this is where the 192.168.50.x box is and pfsense is IP is 192.168.50.1 and you ping 192.168.60.50 and you get nothing?
Lets see the output of your ipconfig /all
You sure you turned off this boxes 192.168.60 interface you said it had, or did you just remove the gateway from the interface?
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@johnpoz Sorry for the late reply. I'll try to disable my tunnel tomorrow and let you know the outcome.
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@sutha said in Unable to connect between lan1 and lan2:
I'll try to disable my tunnel tomorrow
tunnel? No freaking wonder your not seeing anything.. Its going out your vpn.. uggghhhh - you have wasted everyones time not stating that in post 1..
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@johnpoz Actually, that's not true. When I trace the ping, only the tunnel IP goes through the tunnel. Everything else showing the local system ip with the message unreachable.
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@sutha dude turn off your vpn client on this box and your issues will go away!!
A vpn client will route traffic not set to the local network out the vpn.. So yeah trying to go to 192.168.60 vs 192.168.50 will go your vpn client tunnel... Pfsense can not route traffic its never seeing.. Ie your sniff on your lan not showing any traffic when trying to go to 192.168.60 because its being routed out your tunnel
