Netgear/Vlans/Pfsense

r79c

ok here it is, from the client...

C:\WINDOWS\system32>arp -a

Interface: 192.68.5.50 --- 0x7
   Internet Address                       Physical Address                  Type
   192.168.1.125                          b0-be-76-b7-cf-8c                  dynamic
   192.168.1.201                          78-bd-bc-34-d0-f3                  dynamic
   192.168.1.202                          08-84-9d-87-b5-d3                 dynamic
   192.168.5.1                              6d-b3-11-1c-6c-77                  dynamic
   192.168.5.255                          ff-ff-ff-ff-ff-ff                                static
   224.0.0.22                                 01-00-5e-00-00-16                 static
   224.0.0.251                               01-00-5e-00-00-fb                  static
   224.0.0.252                               01-00-5e-00-00-fc                  static
   239.255.255.250                      01-00-5e-7f-ff-fa                      static
   255.255.255.255                      ff-ff-ff-ff-ff-ff                                static

BORKED! LOL

johnpoz

Yup that is BORKED

You should not be seeing 192.168.1 address if your in vlan 5.. So your switch is clearly not setup correctly. or its not doing what it should be doing.. If you were in vlan 5 it would not be possible for you to get arp answers for anything in 192.168.1

r79c

@johnpoz said in Netgear/Vlans/Pfsense:

This is switch setup
pfsense - 1U,5T --- switch --- 5U --- vlan 5 client

If you could look at the following pictures they show the netgear switch setup as it is at the moment.

https://ibb.co/0ft99fJ
https://ibb.co/D9W0ZXV
https://ibb.co/wy401MF
https://ibb.co/z7Rv26Z

Pfsense is plugged in to port 2

VLAN5 PC Client is plugged in to port 1

Everything else is plugged into port 3

johnpoz

that looks correct yes..

But its not working if your seeing mac of devices in 192.168.1..

Clear your arp table... Do they come back? trying pinging one of those 192.168.1 address from your client after you clear your arp.

BTW your rules on vlan 5 are WRONG!!! source would NEVER be pfsense on vlan 5 address.. Source would be vlan 5 net..

What did you set netgears IP too? You said you changed it.

What is the hardware of your pfsense box?
6DB311

That doesn't resolve as maker of networking gear..

r79c

@johnpoz said in Netgear/Vlans/Pfsense:

Clear your arp table

cleared and not returned

cannot ping any 192.168.1 or 192.168.5

i have the following arp entries now

192.168.5.1
192.168.5.255
224.0.0.22
224.0.0.251
224.0.0.252
239.255.255.250
255.255.255.255

johnpoz

Ok that is better!

So simple test is sniff on pfsense vlan interface while you ping it from the client.. Do you see the ping?

BTW what hardware is the nic on pfsense? that mac doesn't resolve to anyone..

r79c

@johnpoz said in Netgear/Vlans/Pfsense:

Do you see the ping?

16:37:10.374829 IP 192.168.5.50 > 192.168.5.1: ICMP echo request, id 1, seq 36, length 40
16:37:15.321366 IP 192.168.5.50 > 192.168.5.1: ICMP echo request, id 1, seq 37, length 40
16:37:20.337599 IP 192.168.5.50 > 192.168.5.1: ICMP echo request, id 1, seq 38, length 40
16:37:25.318515 IP 192.168.5.50 > 192.168.5.1: ICMP echo request, id 1, seq 39, length 40
16:37:26.442815 IP 192.168.5.50.53865 > 239.255.255.250.1900: UDP, length 174
16:37:27.009842 IP 192.168.5.50.60396 > 192.168.5.1.53: UDP, length 46
16:37:27.463007 IP 192.168.5.50.53865 > 239.255.255.250.1900: UDP, length 174
16:37:28.011221 IP 192.168.5.50.60396 > 192.168.5.1.53: UDP, length 46
16:37:28.465757 IP 192.168.5.50.53865 > 239.255.255.250.1900: UDP, length 174
16:37:29.013961 IP 192.168.5.50.60396 > 192.168.5.1.53: UDP, length 46
16:37:29.468473 IP 192.168.5.50.53865 > 239.255.255.250.1900: UDP, length 174
16:37:31.022413 IP 192.168.5.50.60396 > 192.168.5.1.53: UDP, length 46
16:37:32.811702 ARP, Request who-has 192.168.5.1 (6c:b3:11:1c:6c:77) tell 192.168.5.50, length 46
16:37:32.811707 ARP, Reply 192.168.5.1 is-at 6c:b3:11:1c:6c:77, length 28
16:37:35.033636 IP 192.168.5.50.60396 > 192.168.5.1.53: UDP, length 46

johnpoz

@r79c said in Netgear/Vlans/Pfsense:

16:37:10.374829 IP 192.168.5.50 > 192.168.5.1: ICMP echo request, id 1, seq 36, length 40
16:37:15.321366 IP 192.168.5.50 > 192.168.5.1: ICMP echo request, id 1, seq 37, length 40

Yup... So lets see your rules on on vlan 5 again... And do you have any rules in floating?

r79c

https://ibb.co/rs4tG8r

https://ibb.co/zVDwqW4

johnpoz

So your blocking it with pfblocker... Disable those rules on floating as test!

That firehol list contains rfc1918 address space!!

r79c

Ok I disabled those rules and disabled pfblocker for the time being.

I set those rules up when I set up pfblocker but I was never 100% competent on how it is setup, I only set it up about two weeks ago....

johnpoz

And - are you pinging?

r79c

@johnpoz said in Netgear/Vlans/Pfsense:

And - are you pinging?

no

johnpoz

Well your firewall rule that allows all of IPv4 show hits... And your seeing the traffic actually hit pfsense vlan interface... You were sniffing on the vlan interface right!! not lan..

So lets see your routing table..

Unless you where not sniffing on vlan 5 interface it makes no sense to be honest..

Is pfsense a VM? Or this is a physical box... What is the nic of this box? Why does the mac of the 5.1 not show as known company?

r79c

@johnpoz said in Netgear/Vlans/Pfsense:

You were sniffing on the vlan interface right!!

yes

routing table

Destination	Gateway	Flags	Use	Mtu	Netif	Expire
0.0.0.0/1	10.8.2.1	UGS	2057	1500	ovpnc3	
default	192.168.10.1	UGS	112	1500	igb0	
10.8.2.0/24	10.8.2.1	UGS	0	1500	ovpnc3	
10.8.2.1	link#10	UH	7060	1500	ovpnc3	
10.8.2.19	link#10	UHS	0	16384	lo0	
10.8.3.1	link#8	UH	7074	1500	ovpnc1	
10.8.3.10	link#8	UHS	0	16384	lo0	
10.8.8.0/24	10.8.8.1	UGS	0	1500	ovpnc2	
10.8.8.1	link#9	UH	7078	1500	ovpnc2	
10.8.8.4	link#9	UHS	0	16384	lo0	
127.0.0.1	link#4	UH	1350047	16384	lo0	
128.0.0.0/1	10.8.2.1	UGS	57242	1500	ovpnc3	
192.168.1.0/24	link#2	U	815693	1500	igb1	
192.168.1.1	link#2	UHS	0	16384	lo0	
192.168.5.0/24	link#7	U	1927	1500	igb1.5	
192.168.5.1	link#7	UHS	0	16384	lo0	
192.168.10.0/24	link#1	U	0	1500	igb0	
192.168.10.1	6c:b3:11:1c:6c:76	UHS	53316	1500	igb0	
192.168.10.3	link#1	UHS	0	16384	lo0	
217.146.82.191/32	192.168.10.1	UGS	24899	1500	igb0

johnpoz

Well that looks correct.. you have 192.168.5 and using the interface..

And it was seeing traffic - your not running any sort of IPS are you?

Can you post output of

cat /tmp/rules.debug

r79c

@johnpoz said in Netgear/Vlans/Pfsense:

your not running any sort of IPS are you?

snort

johnpoz

Dude!!!! you need to give this info.... Disable it!!! What do its logs say..

r79c

@johnpoz said in Netgear/Vlans/Pfsense:

So maybe its just an issue with this nic and vlans

perhaps the card that I bought off Amazon does not support VLAN's, although I presumed it did. Also I saw that pfsense only shows interfaces that VLAN's can be created on so if the card didn't support VLAN's it should not show in the pfsense drop down.

igb0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	options=6400bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
	ether 6c:b3:11:1c:6c:76
	hwaddr 6c:b3:11:1c:6c:76
	inet6 fe80::6eb3:11ff:fe1c:6c76%igb0 prefixlen 64 scopeid 0x1
	inet6 fdc0:13c1:78f1:0:6eb3:11ff:fe1c:6c76 prefixlen 64 autoconf
	inet 192.168.10.3 netmask 0xffffff00 broadcast 192.168.10.255
	nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
	media: Ethernet autoselect (1000baseT <full-duplex>)
	status: active
igb1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	options=6500bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
	ether 6c:b3:11:1c:6c:77
	hwaddr 6c:b3:11:1c:6c:77
	inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
	inet6 fe80::1:1%igb1 prefixlen 64 scopeid 0x2
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
	media: Ethernet autoselect (1000baseT <full-duplex>)
	status: active
enc0: flags=0<> metric 0 mtu 1536
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
	groups: enc
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
	options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
	inet6 ::1 prefixlen 128
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
	inet 127.0.0.1 netmask 0xff000000
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
	groups: lo
pflog0: flags=100<PROMISC> metric 0 mtu 33160
	groups: pflog
pfsync0: flags=0<> metric 0 mtu 1500
	groups: pfsync
	syncpeer: 224.0.0.240 maxupd: 128 defer: on
	syncok: 1
igb1.5: flags=88843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,STATICARP> metric 0 mtu 1500
	options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
	ether 6c:b3:11:1c:6c:77
	inet6 fe80::6eb3:11ff:fe1c:6c77%igb1.5 prefixlen 64 scopeid 0x7
	inet 192.168.5.1 netmask 0xffffff00 broadcast 192.168.5.255
	nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
	media: Ethernet autoselect (1000baseT <full-duplex>)
	status: active
	vlan: 5 vlanpcp: 0 parent interface: igb1
	groups: vlan
ovpnc1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500
	options=80000<LINKSTATE>
	inet6 fe80::6eb3:11ff:fe1c:6c76%ovpnc1 prefixlen 64 scopeid 0x8
	inet 10.8.3.10 --> 10.8.3.1 netmask 0xffffff00
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
	groups: tun openvpn
	Opened by PID 7054
ovpnc2: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500
	options=80000<LINKSTATE>
	inet6 fe80::6eb3:11ff:fe1c:6c76%ovpnc2 prefixlen 64 scopeid 0x9
	inet 10.8.8.4 --> 10.8.8.1 netmask 0xffffff00
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
	groups: tun openvpn
	Opened by PID 82209
ovpnc3: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500
	options=80000<LINKSTATE>
	inet6 fe80::6eb3:11ff:fe1c:6c76%ovpnc3 prefixlen 64 scopeid 0xa
	inet 10.8.2.19 --> 10.8.2.1 netmask 0xffffff00
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
	groups: tun openvpn
	Opened by PID 33738

dotdash

You've made a lot of changes, I suggest you reboot the firewall to make sure the pfb/snort is off.