[Jool-list] netfilter mode question or bug

Mon Dec 23 01:01:06 CST 2019

Hi Alberto

I tested. Works well, but we need more information in log for better trace.
Because jool siit and jool have same instance name. For example Default.
I can't see which one instance matched.

Dec 23 09:35:40 2019 kernel: : [263288.781040] Jool: INSTANCE:default 
PROTO:IPv4/ICMP SRC:10.200.200.220 DST:10.100.100.11 TYPE:8 CODE:0
Dec 23 09:35:40 2019 kernel: : [263288.781401] Jool: INSTANCE:default 
PROTO:IPv6/ICMP SRC:2001:db8:a::a64:640b DST:2001:db8:a::ac8:c8dc 
TYPE:129 CODE:0
Dec 23 09:35:41 2019 kernel: : [263289.573935] Jool: INSTANCE:default 
PROTO:IPv4/TCP SRC:10.200.200.1#43196 DST:10.200.200.16#22
Dec 23 09:35:41 2019 kernel: : [263289.805122] Jool: INSTANCE:default 
PROTO:IPv4/ICMP SRC:10.200.200.220 DST:10.100.100.11 TYPE:8 CODE:0
Dec 23 09:35:41 2019 kernel: : [263289.805456] Jool: INSTANCE:default 
PROTO:IPv6/ICMP SRC:2001:db8:a::a64:640b DST:2001:db8:a::ac8:c8dc 
TYPE:129 CODE:0
Dec 23 09:35:42 2019 kernel: : [263290.574131] Jool: INSTANCE:default 
PROTO:IPv4/TCP SRC:10.200.200.1#43196 DST:10.200.200.16#22
Dec 23 09:35:43 2019 kernel: : [263291.574381] Jool: INSTANCE:default 
PROTO:IPv4/TCP SRC:10.200.200.1#43196 DST:10.200.200.16#22
Dec 23 09:35:43 2019 kernel: : [263291.777504] Jool: INSTANCE:default 
PROTO:IPv6/ICMP SRC:2001:db8:a::a64:640b DST:fe80::48d8:2aff:fe8b:4a27 
TYPE:136 CODE:0
Dec 23 09:35:43 2019 kernel: : [263291.885362] Jool: INSTANCE:default 
PROTO:IPv6/ICMP SRC:fe80::fc26:33ff:fe79:5b74 DST:2001:db8:a::a64:6402 
TYPE:135 CODE:0
Dec 23 09:35:44 2019 kernel: : [263292.574572] Jool: INSTANCE:default 
PROTO:IPv4/TCP SRC:10.200.200.1#43196 DST:10.200.200.16#22
Dec 23 09:35:45 2019 kernel: : [263293.574838] Jool: INSTANCE:default 
PROTO:IPv4/TCP SRC:10.200.200.1#43196 DST:10.200.200.16#22

# Stateful instances
+--------------------+-----------------+-----------+
|          Namespace |            Name | Framework |
+--------------------+-----------------+-----------+
|   ffffffff80e868c0 |         default | netfilter |
+--------------------+-----------------+-----------+

# Stateles instances
+--------------------+-----------------+-----------+
|          Namespace |            Name | Framework |
+--------------------+-----------------+-----------+
|   ffffffff80e868c0 |         default | netfilter |
+--------------------+-----------------+-----------+

JOOL:siit NAMESPACE:748484488 INSTANCE:default PROTO:IPv6/ICMP 
SRC:fe80::fc26:33ff:fe79:5b74 DST:2001:db8:a::a64:6402 TYPE:135 CODE:0
JOOL:nat64 NAMESPACE:748484488 INSTANCE:default PROTO:IPv6/ICMP 
SRC:fe80::fc26:33ff:fe79:5b74 DST:2001:db8:a::a64:6402 TYPE:135 CODE:0

More information if is possible.

JOOL:siit NAMESPACE:748484488 INSTANCE:default PROTO:IPv6/ICMP 
SRC:fe80::fc26:33ff:fe79:5b74 DST:2001:db8:a::a64:6402 TYPE:135 CODE:0 
action=nat46 nataddr=2001:db8::a mtu=1400 tos=3 eamt=no blacklist=no 
bib=no  .... other matched options

Maybe filter option can be add.

jool global update trace-filter [FILTER OPTIONS]
--src IPv4,IPv6
--dst IPv4,IPv6
--sport
--dport
--tcp
--udp
--icmp
--alg ftp|sip #future

thank you for your effort.

Fatih USTA

On 21.12.2019 02:31, Alberto Leiva wrote:
> First draft:
> https://nicmx.github.io/Jool/en/usr-flags-global.html#trace
>
> the flag can be found in the latest commit in the master branch:
> https://github.com/NICMx/Jool
>
> On Fri, Dec 20, 2019 at 1:01 PM Alberto Leiva <ydahhrk at gmail.com> wrote:
>> Please note that you might need to update that page in case your
>> browser cached it, because I just updated it.
>>
>> On Fri, Dec 20, 2019 at 1:00 PM Alberto Leiva <ydahhrk at gmail.com> wrote:
>>> Currently, there is no tracing configuration flag. If you want, I can add it.
>>>
>>> For now, the closest thing is enabling debugging:
>>> https://nicmx.github.io/Jool/en/logging.html
>>>
>>> On Fri, Dec 20, 2019 at 12:12 AM Fatih USTA <fatihusta86 at gmail.com> wrote:
>>>>
>>>> I rebooted my system and it worked. But I don't understand why?
>>>> One more question. How can I trace traffic inside jool like "iptables
>>>> TRACE" for debugging.
>>>>
>>>> BTW:
>>>> jool netfilter/iptables worked without reboot.
>>>>
>>>>
>>>> Thanks.
>>>>
>>>> Fatih USTA
>>>>
>>>> On 19.12.2019 19:11, Alberto Leiva wrote:
>>>>> Did you try printing stats?
>>>>> https://jool.mx/en/usr-flags-stats.html
>>>>>
>>>>> If Jool is the one dropping the packets, they should tell you why.
>>>>>
>>>>> On Thu, Dec 19, 2019 at 9:46 AM Alberto Leiva <ydahhrk at gmail.com> wrote:
>>>>>> I hate to be asking this question but, did you try rebooting and doing
>>>>>> a clean run?
>>>>>>
>>>>>> Because it works fine for me, even in my 32/64-bit hybrid...
>>>>>>
>>>>>> On Thu, Dec 19, 2019 at 4:54 AM Fatih USTA <fatihusta86 at gmail.com> wrote:
>>>>>>> Hi
>>>>>>>
>>>>>>> I'm following this(https://www.jool.mx/en/run-vanilla.html) guide.
>>>>>>> IPTables mode working, but netfilter mode doesn't work. What am I
>>>>>>> missing? or is this a bug?
>>>>>>>
>>>>>>>
>>>>>>> jool_siit -V
>>>>>>> 4.0.6.2 i386
>>>>>>>
>>>>>>> ip{6}tables -V
>>>>>>> v1.6.0 i386
>>>>>>>
>>>>>>> uname -rm
>>>>>>> 3.16.76-4.custom x86_64
>>>>>>>
>>>>>>>
>>>>>>> PC1[eth0] <=>[eth1]Tranlator[eth2]<=>[eth0]PC2
>>>>>>>
>>>>>>>
>>>>>>> #PC1
>>>>>>> ip addr add 10.200.200.220/23 dev eth0
>>>>>>> ip route add 10.100.100.0/24 via 10.200.200.16
>>>>>>>
>>>>>>> #Translator
>>>>>>> ip addr add 10.200.200.16/23 dev eth1
>>>>>>> ip addr add 2001:db8:a::10.100.100.2/120 dev eth2
>>>>>>>
>>>>>>> sysctl -w net.ipv4.conf.all.forwarding=1
>>>>>>> sysctl -w net.ipv6.conf.all.forwarding=1
>>>>>>>
>>>>>>>
>>>>>>> ethtool --offload eth1 gro off
>>>>>>> ethtool --offload eth2 gro off
>>>>>>>
>>>>>>> lro already fixed off by kernel.
>>>>>>>
>>>>>>>
>>>>>>> jool_siit instance add default --netfilter --pool6 2001:db8:a::/96
>>>>>>>
>>>>>>>
>>>>>>> #PC2
>>>>>>> ip add add 2001:db8:a::10.100.100.11/120 dev eth0
>>>>>>> ip route add 2001:db8:a::10.200.200.0/119 via 2001:db8:a::10.100.100.2
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> #Result of netfilter (on Translator)
>>>>>>>
>>>>>>> PC1>PC2
>>>>>>> 12:44:12.234494 IP 10.200.200.220 > 10.100.100.11: ICMP echo request, id
>>>>>>> 9806, seq 1, length 64
>>>>>>> 12:44:12.234647 IP 10.200.200.16 > 10.200.200.220: ICMP net
>>>>>>> 10.100.100.11 unreachable, length 92
>>>>>>> 12:44:13.255748 IP 10.200.200.220 > 10.100.100.11: ICMP echo request, id
>>>>>>> 9806, seq 2, length 64
>>>>>>> 12:44:13.255825 IP 10.200.200.16 > 10.200.200.220: ICMP net
>>>>>>> 10.100.100.11 unreachable, length 92
>>>>>>> 12:44:14.279628 IP 10.200.200.220 > 10.100.100.11: ICMP echo request, id
>>>>>>> 9806, seq 3, length 64
>>>>>>> 12:44:14.279704 IP 10.200.200.16 > 10.200.200.220: ICMP net
>>>>>>> 10.100.100.11 unreachable, length 92
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> -- Fatih USTA
>>>>>>> _______________________________________________
>>>>>>> Jool-list mailing list
>>>>>>> Jool-list at nic.mx
>>>>>>> https://mail-lists.nic.mx/listas/listinfo/jool-list
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