No link and flood of arpresolve: can't allocate llinfo for x.y.z.w on ix0

SG-net

Hi
I'm new here on this forum, while I use Pfsense for a while.
Right now I implement faillover gateway over LTE bridge and have some issues.

Setup:
Supermicro A2SDi-4C-HLN4F (Intel Atom Processor C3558) with 4 NICs
Mikrotik wAP ac LTE6
Network gears
Pfsense 2.4.5

Layout (U means untagged VLAN port, T means tagged)
[ Pfsense box ] ----- U [switch 1, VLAN11 ] T ----- VLAN 11 ------ T [switch 2, VLAN11 ]U ---- [Mikrotik ]

Mikrotik is in passthrough mode, so IP address from Mobile operator is assigned directly to the NIC on Pfsense box.
In general DHCP server in Mobile Operator network can assign IP address, mask and GW. One thing quite surprising me: lease time = 60s.
After successful IP setup there is no connectivity on this Pfsense interface. In the logs I got a flood of such lines

May 21 15:00:51	kernel		arpresolve: can't allocate llinfo for 10.177.0.1 on ix0
May 21 15:00:51	kernel		arpresolve: can't allocate llinfo for 10.177.0.1 on ix0
May 21 15:00:52	kernel		arpresolve: can't allocate llinfo for 10.177.0.1 on ix0
May 21 15:00:52	kernel		arpresolve: can't allocate llinfo for 10.177.0.1 on ix0
May 21 15:00:53	kernel		arpresolve: can't allocate llinfo for 10.177.0.1 on ix0
May 21 15:00:53	kernel		arpresolve: can't allocate llinfo for 10.177.0.1 on ix0

In the DHCP log i get:

May 21 15:57:20	dhclient		PREINIT
May 21 15:57:20	dhclient	97151	DHCPREQUEST on ix0 to 255.255.255.255 port 67
May 21 15:57:20	dhclient	97151	DHCPACK from 10.177.0.1
May 21 15:57:20	dhclient		REBOOT
May 21 15:57:20	dhclient		Starting add_new_address()
May 21 15:57:20	dhclient		ifconfig ix0 inet 100.69.39.141 netmask 255.255.255.255 broadcast 100.69.39.141
May 21 15:57:20	dhclient		New IP Address (ix0): 100.69.39.141
May 21 15:57:20	dhclient		New Subnet Mask (ix0): 255.255.255.255
May 21 15:57:20	dhclient		New Broadcast Address (ix0): 100.69.39.141
May 21 15:57:20	dhclient		New Routers (ix0): 10.177.0.1
May 21 15:57:20	dhclient		Adding new routes to interface: ix0
May 21 15:57:20	dhclient		Creating resolv.conf
May 21 15:57:20	dhclient	97151	bound to 100.69.39.141 -- renewal in 30 seconds.
May 21 15:57:50	dhclient	1565	DHCPREQUEST on ix0 to 10.177.0.1 port 67
May 21 15:57:52	dhclient	1565	DHCPREQUEST on ix0 to 10.177.0.1 port 67
May 21 15:57:54	dhclient	1565	DHCPREQUEST on ix0 to 10.177.0.1 port 67
May 21 15:57:57	dhclient	1565	DHCPREQUEST on ix0 to 10.177.0.1 port 67
May 21 15:58:04	dhclient	1565	DHCPREQUEST on ix0 to 10.177.0.1 port 67
May 21 15:58:16	dhclient	1565	DHCPREQUEST on ix0 to 255.255.255.255 port 67
May 21 15:58:16	dhclient	1565	DHCPACK from 10.177.0.1
May 21 15:58:16	dhclient		RENEW

When I try to connect Mikroik to Ubuntu, Windows 7 and Windows 10 machines I have no issues and it works fine (lease time is also 60s).
How to debug this? What can be wrong?

kiokoman

arpresolve: can't allocate llinfo ->This usually points to a misconfigured routing table. It can also occur if the kernel cannot allocate memory.
https://github.com/opnsense/src/blob/3c09b4c3de9c2ee3f14252864589a7f10b1e7ee1/sys/netinet/if_ether.c#L465-L475

check if you have the right subnet (/24 ? ) for all your interfaces

others thread say to try a ifconfig ix0 down / ifconfig ix0 up

SG-net

Software update on Mikrotik from 6.44.1 to 6.46.6 solved the problem.
Sounds like Pfsense is handling some things a little bit differently than client/consumer OSes and this was an issue for Mikrotik.
Thanks for help.