Random kernel panic and restart on 2.7.2

EdoFede

Here the crash dump and some information, in the hope that some of you can help me understand what is happening.

Thanks in advance!
Bye

version.txt

FreeBSD 14.0-CURRENT amd64 1400094 #1 RELENG_2_7_2-n255948-8d2b56da39c: Wed Dec  6 20:45:47 UTC 2023
    root@freebsd:/var/jenkins/workspace/pfSense-CE-snapshots-2_7_2-main/obj/amd64/StdASW5b/var/jenkins/workspace/pfSense-CE-snapshots-2_7_2-main/sources/FreeBSD-src-RELENG_2_7_2/amd64.amd64/sys/pfSense

config.txt

options	CONFIG_AUTOGENERATED
ident	pfSense
machine	amd64
cpu	HAMMER
makeoptions	WITH_CTF=1
makeoptions	DEBUG=-g
options	RSS
options	RATELIMIT
options	MROUTING
options	MSGTQL=2048
options	MSGSSZ=32
options	MSGSEG=512
options	MSGMNI=40
options	MSGMNB=8192
options	ALTQ_CODEL
options	ALTQ_NOPCC
options	ALTQ_FAIRQ
options	ALTQ_PRIQ
options	ALTQ_HFSC
options	ALTQ_RIO
options	ALTQ_RED
options	ALTQ_CBQ
options	ALTQ
options	IPSEC
options	TCP_SIGNATURE
options	NETGRAPH_PRED1
options	NETGRAPH_DEFLATE
options	NETGRAPH_CAR
options	NETGRAPH_PIPE
options	NETGRAPH_TCPMSS
options	NETGRAPH_TEE
options	NETGRAPH_HOLE
options	NETGRAPH_FRAME_RELAY
options	NETGRAPH_ASYNC
options	NETGRAPH_ECHO
options	NETGRAPH_CISCO
options	NETGRAPH_BRIDGE
options	NETGRAPH_ONE2MANY
options	NETGRAPH_LMI
options	NETGRAPH_KSOCKET
options	NETGRAPH_VJC
options	NETGRAPH_UI
options	NETGRAPH_MPPC_ENCRYPTION
options	NETGRAPH_TTY
options	NETGRAPH_SOCKET
options	NETGRAPH_RFC1490
options	NETGRAPH_PPTPGRE
options	NETGRAPH_PPPOE
options	NETGRAPH_PPP
options	NETGRAPH_EIFACE
options	NETGRAPH_IFACE
options	NETGRAPH_ETHER
options	NETGRAPH_BPF
options	NETGRAPH_L2TP
options	NETGRAPH_VLAN
options	NETGRAPH
options	IPSTEALTH
options	IPFIREWALL_VERBOSE
options	IPFIREWALL_DEFAULT_TO_ACCEPT
options	ALQ
options	NULLFS
options	GEOM_BDE
options	GEOM_ELI
options	GEOM_UZIP
options	GEOM_MIRROR
options	IICHID_SAMPLING
options	EVDEV_SUPPORT
options	XENHVM
options	ATH_ENABLE_11N
options	AH_AR5416_INTERRUPT_MITIGATION
options	IEEE80211_SUPPORT_MESH
options	SC_PIXEL_MODE
options	PPS_SYNC
options	COMPAT_LINUXKPI
options	PCI_IOV
options	PCI_HP
options	IOMMU
options	SMP
options	NETGDB
options	NETDUMP
options	DEBUGNET
options	ZSTDIO
options	GZIO
options	EKCD
options	VERBOSE_SYSINIT=0
options	GDB
options	DDB
options	KDB
options	RCTL
options	RACCT_DEFAULT_TO_DISABLED
options	RACCT
options	INCLUDE_CONFIG_FILE
options	DDB_CTF
options	KDTRACE_HOOKS
options	KDTRACE_FRAME
options	CAPABILITIES
options	CAPABILITY_MODE
options	AUDIT
options	HWPMC_HOOKS
options	KBD_INSTALL_CDEV
options	PRINTF_BUFR_SIZE=128
options	_KPOSIX_PRIORITY_SCHEDULING
options	SYSVSEM
options	SYSVMSG
options	SYSVSHM
options	STACK
options	KTRACE
options	SCSI_DELAY=5000
options	COMPAT_FREEBSD13
options	COMPAT_FREEBSD12
options	COMPAT_FREEBSD11
options	COMPAT_FREEBSD10
options	COMPAT_FREEBSD9
options	COMPAT_FREEBSD32
options	EFIRT
options	GEOM_LABEL
options	GEOM_RAID
options	TMPFS
options	PSEUDOFS
options	PROCFS
options	CD9660
options	MSDOSFS
options	NFS_ROOT
options	NFSLOCKD
options	NFSD
options	NFSCL
options	MD_ROOT
options	QUOTA
options	UFS_GJOURNAL
options	UFS_DIRHASH
options	UFS_ACL
options	SOFTUPDATES
options	FFS
options	KERN_TLS
options	SCTP_SUPPORT
options	TCP_RFC7413
options	TCP_HHOOK
options	TCP_BLACKBOX
options	TCP_OFFLOAD
options	FIB_ALGO
options	ROUTE_MPATH
options	IPSEC_SUPPORT
options	INET6
options	INET
options	VIMAGE
options	PREEMPTION
options	NUMA
options	SCHED_ULE
options	NETLINK
options	NEW_PCIB
options	CC_CUBIC
options	GEOM_PART_GPT
options	GEOM_PART_MBR
options	GEOM_PART_EBR
options	GEOM_PART_BSD
options	EARLY_AP_STARTUP
options	DDB
options	TMPFS
options	PPS_SYNC
options	COMPAT_LINUXKPI
device	isa
device	mem
device	io
device	uart_ns8250
device	cpufreq
device	acpi
device	smbios
device	pci
device	fdc
device	ahci
device	ata
device	mvs
device	siis
device	ahc
device	ahd
device	hptiop
device	isp
device	mpt
device	mps
device	mpr
device	sym
device	isci
device	ocs_fc
device	pvscsi
device	scbus
device	ch
device	da
device	sa
device	cd
device	pass
device	ses
device	arcmsr
device	ciss
device	ips
device	smartpqi
device	tws
device	aac
device	aacp
device	aacraid
device	ida
device	mfi
device	mlx
device	mrsas
device	nvme
device	nvd
device	vmd
device	atkbdc
device	atkbd
device	psm
device	kbdmux
device	vga
device	splash
device	sc
device	vt
device	vt_vga
device	vt_efifb
device	vt_vbefb
device	agp
device	cbb
device	cardbus
device	uart
device	ppc
device	ppbus
device	lpt
device	ppi
device	puc
device	iflib
device	em
device	igc
device	ix
device	ixv
device	ixl
device	iavf
device	ice
device	vmx
device	axp
device	bxe
device	le
device	ti
device	mlx5
device	mlxfw
device	mlx5en
device	miibus
device	ae
device	age
device	alc
device	ale
device	bce
device	bfe
device	bge
device	cas
device	dc
device	et
device	fxp
device	gem
device	jme
device	lge
device	msk
device	nfe
device	nge
device	re
device	rl
device	sge
device	sis
device	sk
device	ste
device	stge
device	vge
device	vr
device	xl
device	wlan
device	wlan_wep
device	wlan_ccmp
device	wlan_tkip
device	wlan_amrr
device	ath
device	ath_hal
device	ath_rate_sample
device	ipw
device	iwi
device	iwn
device	malo
device	mwl
device	ral
device	wpi
device	crypto
device	loop
device	padlock_rng
device	rdrand_rng
device	ether
device	vlan
device	tuntap
device	md
device	gif
device	firmware
device	xz
device	bpf
device	uhci
device	ohci
device	ehci
device	xhci
device	usb
device	ukbd
device	umass
device	sound
device	snd_cmi
device	snd_csa
device	snd_emu10kx
device	snd_es137x
device	snd_hda
device	snd_ich
device	snd_via8233
device	mmc
device	mmcsd
device	sdhci
device	virtio
device	virtio_pci
device	vtnet
device	virtio_blk
device	virtio_scsi
device	virtio_balloon
device	kvm_clock
device	hyperv
device	xenefi
device	xenpci
device	xentimer
device	netmap
device	evdev
device	uinput
device	hid
device	wlan_rssadapt
device	wlan_xauth
device	wlan_acl
device	iwm
device	iwmfw
device	iwifw
device	ipwfw
device	wpifw
device	iwnfw
device	uath
device	ralfw
device	ural
device	urtw
device	rum
device	mwlfw
device	zyd
device	upgt
device	udav
device	axe
device	axge
device	aue
device	cue
device	kue
device	mos
device	rsu
device	rsufw
device	rtwn
device	rtwnfw
device	rtwn_pci
device	rtwn_usb
device	run
device	runfw
device	rue
device	bwn
device	bwi
device	ufoma
device	ucom
device	uslcom
device	uplcom
device	umct
device	uvisor
device	uark
device	uftdi
device	uvscom
device	umodem
device	u3g
device	cdce
device	uhid
device	firewire
device	sbp
device	gre
device	if_bridge
device	carp
device	lagg
device	vte
device	enc
device	pf
device	pflog
device	pfsync
device	rndtest
device	speaker
device	mxge
device	cxgb
device	cxgbe
device	oce
device	mlx4
device	mlx4en
device	qlxgb
device	bnxt
device	virtio_console

panic.txt

double fault

EdoFede

msgbuf.txt

ddb.txt

Thanks!

stephenw10

Hmm, that backtrace is huge:

db:0:kdb.enter.default>  bt
Tracing pid 0 tid 100008 td 0xfffffe0020516000
kdb_enter() at kdb_enter+0x32/frame 0xfffffe002036acd0
vpanic() at vpanic+0x163/frame 0xfffffe002036ae00
panic() at panic+0x43/frame 0xfffffe002036ae60
dblfault_handler() at dblfault_handler+0x1ce/frame 0xfffffe002036af20
Xdblfault() at Xdblfault+0xd7/frame 0xfffffe002036af20
--- trap 0x17, rip = 0xffffffff80f6bc74, rsp = 0xfffffe001d7d2000, rbp = 0xfffffe001d7d2000 ---
ipsec6_checkpolicy() at ipsec6_checkpolicy+0x4/frame 0xfffffe001d7d2000
ipsec6_common_output() at ipsec6_common_output+0x28/frame 0xfffffe001d7d2040
ip6_output() at ip6_output+0x102/frame 0xfffffe001d7d2260
pf_refragment6() at pf_refragment6+0x1ab/frame 0xfffffe001d7d22c0
pf_test6() at pf_test6+0x153b/frame 0xfffffe001d7d2490
pf_check6_out() at pf_check6_out+0x43/frame 0xfffffe001d7d24c0
pfil_mbuf_out() at pfil_mbuf_out+0x38/frame 0xfffffe001d7d24f0
enc_hhook() at enc_hhook+0x262/frame 0xfffffe001d7d2530
hhook_run_hooks() at hhook_run_hooks+0x61/frame 0xfffffe001d7d25a0
ipsec_run_hhooks() at ipsec_run_hhooks+0x6d/frame 0xfffffe001d7d25c0
ipsec6_perform_request() at ipsec6_perform_request+0x76/frame 0xfffffe001d7d2660
ipsec_transmit() at ipsec_transmit+0x170/frame 0xfffffe001d7d26c0
ip6_output_send() at ip6_output_send+0xe3/frame 0xfffffe001d7d2700
ip6_output() at ip6_output+0x1d57/frame 0xfffffe001d7d2920
pf_refragment6() at pf_refragment6+0x1ab/frame 0xfffffe001d7d2980
pf_test6() at pf_test6+0x153b/frame 0xfffffe001d7d2b50
pf_check6_out() at pf_check6_out+0x43/frame 0xfffffe001d7d2b80
pfil_mbuf_out() at pfil_mbuf_out+0x38/frame 0xfffffe001d7d2bb0
enc_hhook() at enc_hhook+0x262/frame 0xfffffe001d7d2bf0
hhook_run_hooks() at hhook_run_hooks+0x61/frame 0xfffffe001d7d2c60
ipsec_run_hhooks() at ipsec_run_hhooks+0x6d/frame 0xfffffe001d7d2c80
ipsec6_perform_request() at ipsec6_perform_request+0x76/frame 0xfffffe001d7d2d20
ipsec_transmit() at ipsec_transmit+0x170/frame 0xfffffe001d7d2d80
ip6_output_send() at ip6_output_send+0xe3/frame 0xfffffe001d7d2dc0
ip6_output() at ip6_output+0x1d57/frame 0xfffffe001d7d2fe0
pf_refragment6() at pf_refragment6+0x1ab/frame 0xfffffe001d7d3040
pf_test6() at pf_test6+0x153b/frame 0xfffffe001d7d3210
pf_check6_out() at pf_check6_out+0x43/frame 0xfffffe001d7d3240
pfil_mbuf_out() at pfil_mbuf_out+0x38/frame 0xfffffe001d7d3270
enc_hhook() at enc_hhook+0x262/frame 0xfffffe001d7d32b0
hhook_run_hooks() at hhook_run_hooks+0x61/frame 0xfffffe001d7d3320
ipsec_run_hhooks() at ipsec_run_hhooks+0x6d/frame 0xfffffe001d7d3340
ipsec6_perform_request() at ipsec6_perform_request+0x76/frame 0xfffffe001d7d33e0
ipsec_transmit() at ipsec_transmit+0x170/frame 0xfffffe001d7d3440
ip6_output_send() at ip6_output_send+0xe3/frame 0xfffffe001d7d3480
ip6_output() at ip6_output+0x1d57/frame 0xfffffe001d7d36a0
pf_refragment6() at pf_refragment6+0x1ab/frame 0xfffffe001d7d3700
pf_test6() at pf_test6+0x153b/frame 0xfffffe001d7d38d0
pf_check6_out() at pf_check6_out+0x43/frame 0xfffffe001d7d3900
pfil_mbuf_out() at pfil_mbuf_out+0x38/frame 0xfffffe001d7d3930
enc_hhook() at enc_hhook+0x262/frame 0xfffffe001d7d3970
hhook_run_hooks() at hhook_run_hooks+0x61/frame 0xfffffe001d7d39e0
ipsec_run_hhooks() at ipsec_run_hhooks+0x6d/frame 0xfffffe001d7d3a00
ipsec6_perform_request() at ipsec6_perform_request+0x76/frame 0xfffffe001d7d3aa0
ipsec_transmit() at ipsec_transmit+0x170/frame 0xfffffe001d7d3b00
ip6_output_send() at ip6_output_send+0xe3/frame 0xfffffe001d7d3b40
ip6_output() at ip6_output+0x1d57/frame 0xfffffe001d7d3d60
pf_refragment6() at pf_refragment6+0x1ab/frame 0xfffffe001d7d3dc0
pf_test6() at pf_test6+0x153b/frame 0xfffffe001d7d3f90
pf_check6_out() at pf_check6_out+0x43/frame 0xfffffe001d7d3fc0
pfil_mbuf_out() at pfil_mbuf_out+0x38/frame 0xfffffe001d7d3ff0
enc_hhook() at enc_hhook+0x262/frame 0xfffffe001d7d4030
hhook_run_hooks() at hhook_run_hooks+0x61/frame 0xfffffe001d7d40a0
ipsec_run_hhooks() at ipsec_run_hhooks+0x6d/frame 0xfffffe001d7d40c0
ipsec6_perform_request() at ipsec6_perform_request+0x76/frame 0xfffffe001d7d4160
ipsec_transmit() at ipsec_transmit+0x170/frame 0xfffffe001d7d41c0
ip6_output_send() at ip6_output_send+0xe3/frame 0xfffffe001d7d4200
ip6_output() at ip6_output+0x1d57/frame 0xfffffe001d7d4420
pf_refragment6() at pf_refragment6+0x1ab/frame 0xfffffe001d7d4480
pf_test6() at pf_test6+0x153b/frame 0xfffffe001d7d4650
pf_check6_out() at pf_check6_out+0x43/frame 0xfffffe001d7d4680
pfil_mbuf_out() at pfil_mbuf_out+0x38/frame 0xfffffe001d7d46b0
enc_hhook() at enc_hhook+0x262/frame 0xfffffe001d7d46f0
hhook_run_hooks() at hhook_run_hooks+0x61/frame 0xfffffe001d7d4760
ipsec_run_hhooks() at ipsec_run_hhooks+0x6d/frame 0xfffffe001d7d4780
ipsec6_perform_request() at ipsec6_perform_request+0x76/frame 0xfffffe001d7d4820
ipsec_transmit() at ipsec_transmit+0x170/frame 0xfffffe001d7d4880
ip6_output_send() at ip6_output_send+0xe3/frame 0xfffffe001d7d48c0
ip6_output() at ip6_output+0x1d57/frame 0xfffffe001d7d4ae0
pf_refragment6() at pf_refragment6+0x1ab/frame 0xfffffe001d7d4b40
pf_test6() at pf_test6+0x153b/frame 0xfffffe001d7d4d10
pf_check6_out() at pf_check6_out+0x43/frame 0xfffffe001d7d4d40
pfil_mbuf_out() at pfil_mbuf_out+0x38/frame 0xfffffe001d7d4d70
enc_hhook() at enc_hhook+0x262/frame 0xfffffe001d7d4db0
hhook_run_hooks() at hhook_run_hooks+0x61/frame 0xfffffe001d7d4e20
ipsec_run_hhooks() at ipsec_run_hhooks+0x6d/frame 0xfffffe001d7d4e40
ipsec6_perform_request() at ipsec6_perform_request+0x76/frame 0xfffffe001d7d4ee0
ipsec_transmit() at ipsec_transmit+0x170/frame 0xfffffe001d7d4f40
ip6_output_send() at ip6_output_send+0xe3/frame 0xfffffe001d7d4f80
ip6_output() at ip6_output+0x1d57/frame 0xfffffe001d7d51a0
pf_refragment6() at pf_refragment6+0x1ab/frame 0xfffffe001d7d5200
pf_test6() at pf_test6+0x153b/frame 0xfffffe001d7d53d0
pf_check6_out() at pf_check6_out+0x43/frame 0xfffffe001d7d5400
pfil_mbuf_out() at pfil_mbuf_out+0x38/frame 0xfffffe001d7d5430
enc_hhook() at enc_hhook+0x262/frame 0xfffffe001d7d5470
hhook_run_hooks() at hhook_run_hooks+0x61/frame 0xfffffe001d7d54e0
ipsec_run_hhooks() at ipsec_run_hhooks+0x6d/frame 0xfffffe001d7d5500
ipsec6_perform_request() at ipsec6_perform_request+0x76/frame 0xfffffe001d7d55a0
ipsec_transmit() at ipsec_transmit+0x170/frame 0xfffffe001d7d5600
ip6_forward() at ip6_forward+0x99c/frame 0xfffffe001d7d5700
pf_refragment6() at pf_refragment6+0x18d/frame 0xfffffe001d7d5760
pf_test6() at pf_test6+0x153b/frame 0xfffffe001d7d5930
pf_check6_out() at pf_check6_out+0x43/frame 0xfffffe001d7d5960
pfil_mbuf_fwd() at pfil_mbuf_fwd+0x38/frame 0xfffffe001d7d5990
ip6_forward() at ip6_forward+0x3fd/frame 0xfffffe001d7d5a90
ip6_input() at ip6_input+0xa57/frame 0xfffffe001d7d5b70
netisr_dispatch_src() at netisr_dispatch_src+0x22c/frame 0xfffffe001d7d5bc0
ether_demux() at ether_demux+0x149/frame 0xfffffe001d7d5bf0
ether_nh_input() at ether_nh_input+0x36e/frame 0xfffffe001d7d5c50
netisr_dispatch_src() at netisr_dispatch_src+0xaf/frame 0xfffffe001d7d5ca0
ether_input() at ether_input+0x69/frame 0xfffffe001d7d5d00
iflib_rxeof() at iflib_rxeof+0xc46/frame 0xfffffe001d7d5e00
_task_fn_rx() at _task_fn_rx+0x72/frame 0xfffffe001d7d5e40
gtaskqueue_run_locked() at gtaskqueue_run_locked+0x14e/frame 0xfffffe001d7d5ec0
gtaskqueue_thread_loop() at gtaskqueue_thread_loop+0xc2/frame 0xfffffe001d7d5ef0
fork_exit() at fork_exit+0x7f/frame 0xfffffe001d7d5f30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe001d7d5f30
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---

Do the crashes always show that? Or at least very similar to that?

It looks similar to this: https://redmine.pfsense.org/issues/14431 Though I'd expect to see something logged due to an interface or link going down. You didn't remove anything from the msgbuf output?

Steve

EdoFede

@stephenw10 except for PIDs, they are near identical from one crash to another.

I'll take a look at your link.
Thank you!

stephenw10

I would guess it's triggered by an IPSec tunnel carrying IPv6 if you have that?

Of course that should not panic...

EdoFede

Well, it seems that the issue can be related to the bug...!!

I provide some context for better understanding.
This is my home-office firewall.
I do a lot of remote work as IT manager for some customers, and I connect to the internet via a dual 4G setup (using two different providers and pointing different BTS), since I live in a remote location (not a great choice for an IT guy, but hey... ).

So I've setted up many IPSec VPNs with dual tunnel for every customer using router VTI and BGP dynamic routing via FRR.
With this setup, I can continue to work even when one of my WANs goes down or loss packets (which is quite common).
All this on IPv4 world. (no IPv6 connectivity from mobile providers here)

But I've also the same connection schema to a location with IPv6 from which I take a /64 subnet to my house for experimental purposes.
So one of the two tunnel on this location is routing also this IPv6 subnet to my house on a second Phase 2 IPSec.

The whole system worked very fine, but after learning about this bug, it could be that during a connection drop, even a brief one, there is some IPv6 traffic trying to pass through the offline ipsec interface...

This setup has actually been working for more than 1 year, but I previously tunneled via OpenVPN and only recently switched this IPv6 routing to IPSec.

I'll try shutting down the IPv6 stack entirely and see if that fixes it.

Thank you!

stephenw10

Yeah, that seems likely from that backtrace. If it always happens ai less than 12hrs that should be easy enough to test.

I've never been able to replicate that panic locally which means it's far more difficult to pin down.

EdoFede

Pretty frequent, so I think we'll know by tomorrow

Feb 8 17:36:18	root	26063	Bootup complete
Feb 8 16:49:44	root	428	Bootup complete
Feb 8 14:47:03	root	21766	Bootup complete
Feb 8 13:45:17	root	93044	Bootup complete
Feb 8 07:10:15	root	60172	Bootup complete
Feb 8 00:14:39	root	77642	Bootup complete
Feb 7 15:36:30	root	45258	Bootup complete
Feb 7 14:53:23	root	98846	Bootup complete
Feb 7 13:40:11	root	15021	Bootup complete
Feb 7 12:38:21	root	49059	Bootup complete
Feb 7 10:34:49	root	34494	Bootup complete
Feb 7 10:16:51	root	75312	Bootup complete
Feb 7 08:35:36	root	62958	Bootup complete
Feb 7 07:53:43	root	54954	Bootup complete
Feb 6 23:09:37	root	60224	Bootup complete
Feb 6 22:28:15	root	96734	Bootup complete
Feb 6 21:22:09	root	802	Bootup complete

carter69

I am curious as to what I can search through / look for in my crash dumps as I have been crashing pretty regularly on 2.7.2 to see if this is similar. Or what files would someone like to view ?

stephenw10

The most telling line in the backtrace is probably: ip6_output()
Though that doesn't always appear as you can see in the bug report where is happens on ppp links.

EdoFede

Uptime: 15h 44m

I'll keep an eye on it today too, but it seems that disabling IPv6 subnet tunneling solved the problem, so it's probably the same anomaly.

Do you know if there is a planned fix for this problem also on pfSense CE?

As a workaround on my specific problem, I could try to restore that routing on OpenVPN tunnels as before (which had never given this problem), but it would be nice if it were solved.

Thanks,
Edoardo

stephenw10

@EdoFede said in Random kernel panic and restart on 2.7.2:

I could try to restore that routing on OpenVPN tunnels as before

That would be a good test. I would expect both VPN types to go down at the same time so IPv6 sessions over both should behave similarly. So if it doesn't panic over OpenVPN then it's handling that differently which could be a clue.

EdoFede

I'm trying to replicate the setup of IPv6 routing on OpenVPN, but something doesn't work as expected.
I'm not doing the exact same way as before (that worked...both IPv4 and IPv6 tunneling) because I've already setted up IPv4 over IPSec + BGP for this site and don't want to brake the whole setup.

I'm trying to route only IPv6 traffic over the OpenVPN tunnel (that has IPv4 endpoints as before), but something is wrong, I think on routing.
I'm able to ping6 google from the "remote" firewall via the tunnel, but not on the internal "remote" IPv6 network.

I'll investigate and let you know if I can reproduce the issue even on OpenVPN.
I don't think that will happen anyway, because nothing like this has ever happened to me before with IPv6 and OpenVPN.

Bye!
Edo

stephenw10

Sounds like a missing iroute at the server end.

EdoFede

yeah, missing iroute!
Now fixed, thanks!

Now I'll monitor the system and let you know if the issue happens also on OpenVPN.

Bye,
Edo

EdoFede

it seems to be stable on OpenVPN... no reboots/crash at the moment.

The only setup difference with the IPSec configuration is that on IPSec I had to manually enter the default route (route -6 add default <tunnel endpoint>) because for some strange reason it was not set automatically (even if I selected the gateway as default in the routing menu).

I'll write if it happens again, but I would say that the problem only seems to be present on IPSec.