No DHCP on pfSense VLAN with Cisco Smart Switch

Cannondale

@mvikman Thanks for the confirmation.
As a test, I disabled the pfSense VLAN10 interface on igb2.
I also removed VLAN10 from port 23 on the switch.
This left only VLAN20 on my igb1 (pfSense lan) interface.
Unfortunately, the test failed. It didn't make a difference in getting an IP on VLAN20 from DHCP.

pete35

@Cannondale
Somehow your switch configs are a miracle. Can you post your the routing table / standard gateway of that switch? Is routing disabled/enabled?

Pls show all the firewall rules, not in edit mode.... also the floating rules just to see how the rules are in the rows.

Cannondale

@pete35

Can you post your the routing table

#show ip route
Maximum Parallel Paths: 1 (1 after reset)
IP Forwarding: disabled
Codes: > - best, C - connected, S - static

D   0.0.0.0/0 [1/2] via 192.168.0.201, 47:42:32, vlan 1                    
C   192.168.0.0/24 is directly connected, vlan 1

Is routing disabled/enabled?
What is the cli command to confirm?

Pls show all the firewall rules, not in edit mode.... also the floating rules just to see how the rules are in the rows.

vl20 rules.png

floating rules.png

johnpoz

@Cannondale the rules have zero to do with dhcp.. Once you enable dhcp the hidden rules would allow it..

So your saying is when you have tagged 10 and 20 on igb2 with no native untagged nework on this interface both 10 and 20 work.

But if you put 10 and 20 tagged on igb1 that has a native network on it - the tagged vlans don't work?

Post the output of your ifconfig on pfsense..

example here is mine..

igb2: flags=8863<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        description: WLAN
        options=4e120bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,WOL_MAGIC,VLAN_HWFILTER,RXCSUM_IPV6,TXCSUM_IPV6,NOMAP>
        ether 00:08:a2:0c:e6:20
        inet6 fe80::208:a2ff:fe0c:e620%igb2 prefixlen 64 scopeid 0x3
        inet 192.168.2.253 netmask 0xffffff00 broadcast 192.168.2.255
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>

igb2.4: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        description: W_PSK
        options=4600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6,NOMAP>
        ether 00:08:a2:0c:e6:20
        inet6 fe80::208:a2ff:fe0c:e620%igb2.4 prefixlen 64 scopeid 0xb
        inet 192.168.4.253 netmask 0xffffff00 broadcast 192.168.4.255
        groups: vlan
        vlan: 4 vlanproto: 802.1q vlanpcp: 0 parent interface: igb2
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
igb2.6: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        description: W_Guest
        options=4600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6,NOMAP>
        ether 00:08:a2:0c:e6:20
        inet6 fe80::208:a2ff:fe0c:e620%igb2.6 prefixlen 64 scopeid 0xc
        inet 192.168.6.253 netmask 0xffffff00 broadcast 192.168.6.255
        groups: vlan
        vlan: 6 vlanproto: 802.1q vlanpcp: 0 parent interface: igb2
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>

I am curious to the options you have set on the parent interface mostly.

if you do a pcap with tcpdump on ig2 do you see the tags with the -e flag, but when you do that on igb1 you dont?

Cannondale

@johnpoz

So your saying is when you have tagged 10 and 20 on igb2 with no native untagged nework on this interface both 10 and 20 work.

Correct

But if you put 10 and 20 tagged on igb1 that has a native network on it - the tagged vlans don't work?

Actually, what I tried first was vlan10 on igb2 and vlan20 on ibg1, In this config, only vlan10 works.

Second test was vlan10 and vlan20 on igb2. Both work.

Third test was disable vlan10 and put vlan20 on igb1. This does not work. Similar to first test.

How do I display the pfSense ifconfig? Don't see it in the menu.

Cannondale

@johnpoz

Post the output of your ifconfig on pfsense

Found it.

igb0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
	description: WAN
	options=e100bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWFILTER,RXCSUM_IPV6,TXCSUM_IPV6>
	ether 00:1b:21:b7:50:30
	inet6 fe80::21b:21ff:feb7:5030%igb0 prefixlen 64 scopeid 0x1
	inet 71.46.127.170 netmask 0xfffff000 broadcast 255.255.255.255
	media: Ethernet autoselect (1000baseT <full-duplex>)
	status: active
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
igb1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
	description: Lan1
	options=e100bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWFILTER,RXCSUM_IPV6,TXCSUM_IPV6>
	ether 00:1b:21:b7:50:31
	inet6 fe80::21b:21ff:feb7:5031%igb1 prefixlen 64 scopeid 0x2
	inet 192.168.0.201 netmask 0xffffff00 broadcast 192.168.0.255
	media: Ethernet autoselect (1000baseT <full-duplex>)
	status: active
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
igb2: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
	description: WiFiUAP
	options=e100bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWFILTER,RXCSUM_IPV6,TXCSUM_IPV6>
	ether 00:1b:21:b7:50:34
	inet6 fe80::21b:21ff:feb7:5034%igb2 prefixlen 64 scopeid 0x3
	media: Ethernet autoselect (1000baseT <full-duplex>)
	status: active
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>

igb2.10: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
	description: VLAN10
	options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
	ether 00:1b:21:b7:50:34
	inet6 fe80::21b:21ff:feb7:5034%igb2.10 prefixlen 64 scopeid 0xf
	inet 192.168.10.1 netmask 0xffffff00 broadcast 192.168.10.255
	groups: vlan
	vlan: 10 vlanpcp: 0 parent interface: igb2
	media: Ethernet autoselect (1000baseT <full-duplex>)
	status: active
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
igb1.20: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	description: VLAN20
	options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
	ether 00:1b:21:b7:50:31
	inet6 fe80::21b:21ff:feb7:5031%igb1.20 prefixlen 64 scopeid 0x10
	inet 192.168.20.1 netmask 0xffffff00 broadcast 192.168.20.255
	groups: vlan
	vlan: 20 vlanpcp: 0 parent interface: igb1
	media: Ethernet autoselect (1000baseT <full-duplex>)
	status: active
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>

johnpoz

@Cannondale your not testing this with AP are you.. Your putting actual devices on the ports that are in access mode.. I see a description of wifiUAP..

Cannondale

@johnpoz

your not testing this with AP are you.

No. I'm plugging in a Linux workstation to vlan20.

johnpoz

@Cannondale so this lan1, you don't have it in a bridge or something do you?

This makes zero sense really.. There should be nothing in the switch that should care if there a native untagged network on the port..

the only thing that jumps out at me as different from your options is mine has NOMAP - but not exactly sure what that option is, can not seem to find any info on it in quick google.

edit:
Why do you not have?

vlan: 6 vlanproto: 802.1q vlanpcp: 0 parent interface: igb2

See where mine shows 802.1q??

Cannondale

@johnpoz

so this lan1, you don't have it in a bridge or something do you?

No bridge unless it is a factory default. I reset the switch before configuring anything.

I did notice differences in the following ifconfig output lines:

vlan: 20 vlanpcp: 0 parent interface: igb1
vlan: 4 vlanproto: 802.1q vlanpcp: 0 parent interface: igb2

johnpoz

@Cannondale I just sent a message to Steve.. @stephenw10 maybe he can see something I am missing..

But it sure shouldn't matter if pfsense is using a native untagged on the interface along with tags..

What version of pfsense are you running - what nic specific do you have? I mean its igb should be the same..

I have been running vlans on pfsense since really pfsense came out, have never seen a issue with them on any hardware or any switches..

mvikman

@johnpoz
"vlan: 20 vlanproto: 802.1q vlanpcp: 0 parent interface: ixl0"
I also have that vlanproto in ifconfig output, so I'd say that there has to be something we are missing in Cannondale's pfSense config.

johnpoz

@mvikman but what? And that would matter if there was a native vlan or not.. The native is what wouldn't use any tagging..

@stephenw10 answered me back - so hoping he is reading over this long thread now and will chime in and make us all feel stupid ;)

Cannondale

@johnpoz

I just sent a message to Steve.. @stephenw10 maybe he can see something I am missing

Great!

What version of pfsense are you running

v2.6

@johnpoz said in No DHCP on pfSense VLAN with Cisco Smart Switch:

what nic specific do you have

Currently, the NIC in the pfSense box is a Dell / Intel HM9JY.
I have also tested with NIC Dell / Intel YT674.
The server board is a Supermicro X10SLH-F, which also has two Intel NICs.
I have tested with the second onboad NIC with the same results on the SG250.

mvikman

Looks like both HM9JY and YT674 are Intel Pro 1000VT Quad Port Nics that use Intel 82575GB chip.
Supermicro board has Intel I210-AT chip.

Cannondale

@mvikman

Looks like both HM9JY and YT674 are Intel Pro 1000VT Quad Port Nics that use Intel 82575GB chip.

If I remember correctly, the YT674 is a VT card with the 82575B controller while the HM9JY is an ET card and has the 82576 controller, which has slightly better capabilities.

mvikman

@Cannondale Yeah, you're right the other one is an ET card. It adds support for SR-IOV and IPSec offload over VT card.