Netgate SG-3100 LAN ports cannot go through LAN Gateway.

[mmajian]

@stephenw10 I connect one of the Win10 computer to LAN1 port and Switch setting is here:

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It's getting correct IP address from LAN DHCP 192.168.1.115, but is't offline
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I started Packet capture on LAN interface for IPv4 only.
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Looks like LAN can receive from Win10 computer but never reply.

[johnpoz]

Ok that is good info, now lets see your actual switch config.

[mmajian]

@johnpoz Sorry I am new to pfSense. What is actual switch config and how to view it? Thanks.

[Derelict]

@mmajian said in Netgate SG-3100 LAN ports cannot go through LAN Gateway.:

@Derelict Great, thank you. I created a BLOCK rule and it's working.
Now I am backing LAN ports can't reach LAN gateway problem. Looks like fixing problems with WirelessNetwork doesn't fix LAN net.

Yet another victim.

Someday people will listen.

[johnpoz]

See that tab you showing the ports - hit the vlan tab.. lets make sure nothing messed up there

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That is the default settings, from one of my 3100s

You don't have any rules in in your floating tab do you? And for good measure lets see the routes.. under diag..

[mmajian]

@johnpoz Yes, my VLANs setting are same as yours. And I don't have rules in floating tab. And here is the routes:
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[johnpoz]

Have you tried reloading the firewall rules? Or I take it you have tried rebooting it? ;)
Try changing the IP to say 192.168.2.1/24 on the lan interface?

Everything looks right..

Are you seeing any errors on the interface, in the interface status?

LAN Interface (lan, igb0)

Status
    up
MAC Address
    00:08:a2:0c:e6:24 - ADI Engineering
IPv4 Address
    192.168.9.253
Subnet mask IPv4
    255.255.255.0
IPv6 Link Local
    fe80::208:a2ff:fe0c:e624%igb0
IPv6 Address
    2001:470:snipped::253
Subnet mask IPv6
    64
MTU
    1500
Media
    1000baseT <full-duplex>
In/out packets
    461831409/992950006 (321.12 GiB/1.27 TiB)
In/out packets (pass)
    461831409/992950006 (321.12 GiB/1.27 TiB)
In/out packets (block)
    8743/0 (506 KiB/0 B)
In/out errors
    0/0
Collisions
    0	

You tried a different port?

[stephenw10]

Looks like you have pfBlocker installed. Let's see the floating firewall rules. You maybe need to edit them to see all the info.

That can block and not log traffic in LAN if it;s not configured correctly.

Steve

[johnpoz]

He stated he has no rules on floating.

You didn't setup any port forward rules did you?

I would like to see the full output of the rules to be honest
https://docs.netgate.com/pfsense/en/latest/firewall/viewing-the-full-pf-ruleset.html

[mmajian]

@johnpoz No, zero errors on LAN interface and I did tried different ports. And I did tried change LAN IP to 192.168.10.1/24, still not working.

[mmajian]

@stephenw10 I disabled pfBlocker but no luck.

[mmajian]

@johnpoz No port forward rules. No errors on LAN interface:
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Here are all rules
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[Derelict]

@mmajian said in Netgate SG-3100 LAN ports cannot go through LAN Gateway.:

Yes, my VLANs setting are same as yours.

Please post them.

It's not rules (though it looks like you are still using a ! LAN net rule for some inexplicable reason.)

[mmajian]

@Derelict Sure, here is my VLAN:
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Here are ports:
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And I disabled all firewall rule here:
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I uninstalled pfBlocker and disabled OpenVPN. Then reboot the firewall but still no luck.
Next thing I am going to try is reset to factory default.
But if that still not working I think it might be the hardware problem.

[stephenw10]

Disabling pf will, as it says there, disable NAT so you will be unable to connect to any public IPs from any internal interface.
You should still be able to connect to LAN though...

It seems unlikely to be a hardware issue since clients on LAN are still able to pull a DHCP address, traffic is able to flow both ways for that to happen.

Do you see the connected LAN client in the ARP table? (Diag > ARP)

Steve

[johnpoz]

@stephenw10 said in Netgate SG-3100 LAN ports cannot go through LAN Gateway.:

Do you see the connected LAN client in the ARP table? (Diag > ARP)

That is a very good point... Do you maybe have anything with static arp setup?

When you ping pfsense, from you pc... What does pfsense show in its arp table for this client IP.. Does the mac in the table match?

where is that block ! mvneta1 inet from 192.168.1.0/24 to any coming from?

Make sure you remove any ! rules...

[stephenw10]

@johnpoz said in Netgate SG-3100 LAN ports cannot go through LAN Gateway.:

where is that block ! mvneta1 inet from 192.168.1.0/24 to any coming from?

That's a system default rule. It blocks traffic from an assigned subnet arriving on any other interface.

[stephenw10]

When DHCP works but nothing else does my first thought is a missing firewall rule. But those rules look good. And with pf disabled you should always be able to reach the LAN IP.
Also you should be able to ping out to a client on LAN with no rules in place.

So then why is it not replying... a bad route perhaps or subnet conflct. But those also look good.

So then we have mystery disappearing packets and that is usually either the IPSec daemon grabbing them or captive portal blocking that traffic in ipfw.
Do you have either IPSec or Captive Portal configured?

Steve

[mmajian]

@johnpoz @stephenw10 No I don't see connected LAN client in the ARP table. I only the LAN itself.
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[johnpoz]

Well that going to be kind of problem answering something... But how did you sniff, you should of seen arp go out if pfsense did not know what it was..