[Jool-list] netfilter mode question or bug
Alberto Leiva
ydahhrk at gmail.com
Mon Mar 30 10:33:12 CDT 2020
Ok, but
Are you aware of debug logging?
https://jool.mx/en/logging.html
If trace is meant to happen more than once, then isn't it becoming a
redundant version of -DDEBUG? (I'd rather not have to maintain two
versions of the same thing...)
Here is everything -DDEBUG prints me during a successful ping translation:
Jool: ===============================================
Jool: Jool instance 'default': Received a v6 packet.
Jool: Packet addresses: 2001:db8::5->64:ff9b::c000:205
Jool: Step 1: Determining the Incoming Tuple
Jool: Tuple: 2001:db8::5#25567 -> 64:ff9b::c000:205#25567 (ICMP)
Jool: Done step 1.
Jool: Step 2: Filtering and Updating
Jool: BIB entry: 2001:db8::5#25567 - 192.0.2.2#2949 (ICMP)
Jool: Session entry: 2001:db8::5#25567 - 64:ff9b::c000:205#25567 |
192.0.2.2#2949 - 192.0.2.5#2949 (ICMP)
Jool: Done: Step 2.
Jool: Step 3: Computing the Outgoing Tuple
Jool: Tuple: 192.0.2.2#2949 -> 192.0.2.5#2949 (ICMP)
Jool: Done step 3.
Jool: Step 4: Translating the Packet
Jool: Done step 4.
Jool: Packet routed via device 'to_world_v4'.
Jool: Sending skb.
Jool: Success.
Admittedly, it's not printing the instance namespace, the instance
type (SIIT vs NAT64), the ICMP type nor the ICMP code. But that could
be added.
Do you reckon trace still needs to exist?
On Sun, Mar 29, 2020 at 11:51 PM Fatih USTA <fatihusta86 at gmail.com> wrote:
>
> Hi
>
> If we should chose one of them, I chose option c. But I will chose all
> of them, if it possible.
> Because; We are using trace for debug. So we may need trace every
> process(possible) in the jool.
>
> 1(ID1)>Received(a)
> 2(ID1)>Processing(b) - matched instance and rules
> 3(ID1)>Translated/NonTranslated(c)
> 4(ID1)>Send(d)
>
> Maybe this will be a trace level option.
>
>
> Fatih USTA
>
> On 28.03.2020 01:23, Alberto Leiva wrote:
> > Question:
> >
> > When is the ideal point in time in which should Jool print the trace?
> >
> > a) As soon as it receives a packet
> > b) Somewhere in the middle of a translation (when?)
> > c) After having translated successfully, right before sending the packet
> > d) After sending the packet
> >
> > The trace is currently being printed during a).
> > I think the answer depends on whether the trace is intended to show
> > all packets, or only the packets that will end up translated
> > successfully.
> >
> > On Mon, Jan 6, 2020 at 9:13 AM Alberto Leiva <ydahhrk at gmail.com> wrote:
> >> But TCP and UDP do not have ICMP identifiers. They have ports, which
> >> are being printed after the hash symbol of each corresponding IP
> >> address.
> >>
> >> eg.
> >> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv4/TCP
> >> SRC:10.200.200.220#80 DST:10.100.100.11#47230
> >>
> >> source address: 10.200.200.220
> >> destination address: 10.100.100.11
> >> TCP source port: 80
> >> TCP destination port: 47230
> >>
> >> On Mon, Jan 6, 2020 at 12:35 AM Fatih USTA <fatihusta86 at gmail.com> wrote:
> >>> I mean, ID only showing icmp packets. Is it possible for tcp or udp?
> >>>
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.480540] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv6/ICMP
> >>> SRC:fe80::fc26:33ff:fe79:5b74 DST:fe80::48d8:2aff:fe8b:4a27 TYPE:136
> >>> CODE:0 ID:16384
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.506080] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv6/TCP
> >>> SRC:2001:db8:a::a64:640b#47230 DST:2001:db8:a::ac8:c8dc#80
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.506413] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv4/TCP
> >>> SRC:10.200.200.220#80 DST:10.100.100.11#47230
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.506657] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv6/TCP
> >>> SRC:2001:db8:a::a64:640b#47230 DST:2001:db8:a::ac8:c8dc#80
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.506759] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv6/TCP
> >>> SRC:2001:db8:a::a64:640b#47230 DST:2001:db8:a::ac8:c8dc#80
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.507000] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv4/TCP
> >>> SRC:10.200.200.220#80 DST:10.100.100.11#47230
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.508352] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv4/TCP
> >>> SRC:10.200.200.220#80 DST:10.100.100.11#47230
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.508440] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv4/TCP
> >>> SRC:10.200.200.220#80 DST:10.100.100.11#47230
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.508720] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv6/TCP
> >>> SRC:2001:db8:a::a64:640b#47230 DST:2001:db8:a::ac8:c8dc#80
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.508825] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv6/TCP
> >>> SRC:2001:db8:a::a64:640b#47230 DST:2001:db8:a::ac8:c8dc#80
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.508903] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv6/TCP
> >>> SRC:2001:db8:a::a64:640b#47230 DST:2001:db8:a::ac8:c8dc#80
> >>> Jan 6 09:31:48 2020 kernel: : [1472656.509130] Jool:
> >>> INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv4/TCP
> >>> SRC:10.200.200.220#80 DST:10.100.100.11#47230
> >>>
> >>>
> >>> Fatih USTA
> >>>
> >>> On 1.01.2020 00:36, Alberto Leiva wrote:
> >>>> Sorry, I don't understand you. What do you mean "tcp4/6, udp4/6"?
> >>>>
> >>>> On Mon, Dec 30, 2019 at 12:43 AM Fatih USTA <fatihusta86 at gmail.com> wrote:
> >>>>> Hi
> >>>>>
> >>>>> It looks good.
> >>>>> TRACE: nat:PREROUTING:policy:1 IN=eth1 OUT=
> >>>>> MAC=4e:1e:08:4a:fd:68:9a:0d:a9:dd:aa:b5:08:00 SRC=10.200.200.220
> >>>>> DST=10.100.100.11 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=48678 DF
> >>>>> PROTO=ICMP TYPE=8 CODE=0 ID=2985 SEQ=1
> >>>>> Jool: INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv4/ICMP
> >>>>> SRC:10.200.200.220 DST:10.100.100.11 TYPE:8 CODE:0 ID:2985
> >>>>> ......
> >>>>> Jool: INSTANCE:SIIT/ffffffff80e868c0/default PROTO:IPv6/ICMP
> >>>>> SRC:2001:db8:a::a64:640b DST:2001:db8:a::ac8:c8dc TYPE:129 CODE:0 ID:2985
> >>>>> TRACE: mangle:POSTROUTING:policy:1 IN= OUT=eth1 SRC=10.100.100.11
> >>>>> DST=10.200.200.220 LEN=84 TOS=0x00 PREC=0x00 TTL=63 ID=21649 PROTO=ICMP
> >>>>> TYPE=0 CODE=0 ID=2985 SEQ=1
> >>>>>
> >>>>> I think that's enough but What do you think about the tcp4/6, udp4/6?
> >>>>>
> >>>>> Thanks.
> >>>>>
> >>>>> Fatih USTA
> >>>>>
> >>>>> On 30.12.2019 06:47, Alberto Leiva wrote:
> >>>>>> Hello
> >>>>>>
> >>>>>> Sorry I can't answer immediately.
> >>>>>> I just uploaded a commit adding instance stateness and namespace, as
> >>>>>> well as the ICMP ID for ICMP traces.
> >>>>>>
> >>>>>> How does it look?
> >>>>>>
> >>>>>> On Tue, Dec 24, 2019 at 12:52 AM Fatih USTA <fatihusta86 at gmail.com> wrote:
> >>>>>>> You're right, I can write the iptables trace rule. It's just an idea for a better trace in jool. If I have 1Gbit traffic when I enable trace, many logs will come. Actually not important.
> >>>>>>>
> >>>>>>> Last thing, it would be nice to have ID into log for package relation like iptables.
> >>>>>>>
> >>>>>>> TRACE: raw:PREROUTING:policy:2 IN=eth1 OUT= MAC=4e:1e:08:4a:fd:68:9a:0d:a9:dd:aa:b5:08:00 SRC=10.200.200.220 DST=10.100.100.11 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=23871 DF PROTO=ICMP TYPE=8 CODE=0 ID=13069 SEQ=1
> >>>>>>> TRACE: mangle:PREROUTING:policy:1 IN=eth1 OUT= MAC=4e:1e:08:4a:fd:68:9a:0d:a9:dd:aa:b5:08:00 SRC=10.200.200.220 DST=10.100.100.11 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=23871 DF PROTO=ICMP TYPE=8 CODE=0 ID=13069 SEQ=1
> >>>>>>> TRACE: nat:PREROUTING:policy:1 IN=eth1 OUT= MAC=4e:1e:08:4a:fd:68:9a:0d:a9:dd:aa:b5:08:00 SRC=10.200.200.220 DST=10.100.100.11 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=23871 DF PROTO=ICMP TYPE=8 CODE=0 ID=13069 SEQ=1
> >>>>>>>
> >>>>>>> Jool: INSTANCE:default PROTO:IPv4/ICMP SRC:10.200.200.220 DST:10.100.100.11 TYPE:8 CODE:0
> >>>>>>>
> >>>>>>> TRACE: mangle:POSTROUTING:policy:1 IN= OUT=eth2 SRC=2001:0db8:000a:0000:0000:0000:0ac8:c8dc DST=2001:0db8:000a:0000:0000:0000:0a64:640b LEN=104 TC=0 HOPLIMIT=63 FLOWLBL=0 PROTO=ICMPv6 TYPE=128 CODE=0 ID=13069 SEQ=1
> >>>>>>> TRACE: raw:PREROUTING:policy:2 IN=eth2 OUT= MAC=4a:d8:2a:8b:4a:27:fe:26:33:79:5b:74:86:dd SRC=2001:0db8:000a:0000:0000:0000:0a64:640b DST=2001:0db8:000a:0000:0000:0000:0ac8:c8dc LEN=104 TC=0 HOPLIMIT=64 FLOWLBL=983710 PROTO=ICMPv6 TYPE=129 CODE=0 ID=13069 SEQ=1
> >>>>>>> TRACE: mangle:PREROUTING:policy:1 IN=eth2 OUT= MAC=4a:d8:2a:8b:4a:27:fe:26:33:79:5b:74:86:dd SRC=2001:0db8:000a:0000:0000:0000:0a64:640b DST=2001:0db8:000a:0000:0000:0000:0ac8:c8dc LEN=104 TC=0 HOPLIMIT=64 FLOWLBL=983710 PROTO=ICMPv6 TYPE=129 CODE=0 ID=13069 SEQ=1
> >>>>>>>
> >>>>>>> Jool: INSTANCE:default PROTO:IPv6/ICMP SRC:2001:db8:a::a64:640b DST:2001:db8:a::ac8:c8dc TYPE:129 CODE:0
> >>>>>>>
> >>>>>>> TRACE: mangle:POSTROUTING:policy:1 IN= OUT=eth1 SRC=10.100.100.11 DST=10.200.200.220 LEN=84 TOS=0x00 PREC=0x00 TTL=63 ID=52293 PROTO=ICMP TYPE=0 CODE=0 ID=13069 SEQ=1
> >>>>>>>
> >>>>>>>
> >>>>>>> Fatih USTA
> >>>>>>>
> >>>>>>> On 24.12.2019 07:28, Alberto Leiva wrote:
> >>>>>>>
> >>>>>>> Adding filters complicates it a lot. I have a question: What's
> >>>>>>> stopping you from adding a TRACE target right before the Jool target?
> >>>>>>>
> >>>>>>> for example
> >>>>>>>
> >>>>>>> iptables -t raw -A PREROUTING <filters> -j TRACE
> >>>>>>> iptables -t raw -A PREROUTING <filters> -j JOOL (Jool arguments)
> >>>>>>>
> >>>>>>> That would trace all packets right before they reach Jool.
> >>>>>>>
> >>>>>>>
> >>>>>>> On Mon, Dec 23, 2019 at 1:01 AM Fatih USTA <fatihusta86 at gmail.com> wrote:
> >>>>>>>
> >>>>>>> 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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