Re: Mac address changed ??

2010-02-10 Thread James Smallacombe


Please disregard this...sleep deprication...the IP in questions (which I 
should have disfuised anyway) was not my server's IP, but that of the 
default gateway...the problem was external.


On Wed, 10 Feb 2010, James Smallacombe wrote:



This freaked me out a bit, so I'm just running it past the list to make sure 
this is just a hardware issue...I've never seen it before.


My dedicated server provider replaced my defective server that had been up 
for 6 months after it had apparent failures of a NIC and hard drives.  It had 
also recently been the victim of the Zen Cart exploits (I posted about this 
not long ago).


Tonight I lost connectivity to it, got in via KVM/IP and saw this in the 
syslog:


Feb 10 20:42:51 mail kernel: arp: 209.17.170.1 moved from 00:17:e0:4f:b9:c0 
to 00:13:e0:4f:b9:c0 on re0


My first reaction was that somebody else on the LAN had used my IP address, 
which would have explained the connectivity issues.  However, the IP couldn't 
be pinged and I also noticed that only one number in the address had 
changed...the odds of somebody else having it were long. ifconfig showed the 
I/F down, no carrier.


I rebooted and then it came up with yet a third MAC address, 
00:14:d1:3c:1e:31  Not really even close.  Still no carrier.  Provider swaps 
out the Realtek NIC for a new one and it's working (for now).


Questions that come to mind: could their be a DoS perhaps from a bot or 
c99shell I didn't find?  Even if their was, would it be possible for the 
www user, with no priveleges to even cause this kind of problem?  I had 
disabled suhosin after customers patched their Zen Carts, because it 
interfered with it.


Or...could this be a bug in the re0 driver?  It's just weird.

James Smallacombe PlantageNet, Inc. CEO and Janitor
u...@3.am   http://3.am
=



James Smallacombe PlantageNet, Inc. CEO and Janitor
u...@3.am   http://3.am
=
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Re: MAC address rc.conf

2005-06-21 Thread luke
a better solution to this is to call your isp and tell them your
network card died so you got a new one with MAC address of the freebsd
machine. they can reset the MAC they have on their end and you'll be
alright. also, sometimes the modem is storing the MAC so you can
either reset it if it has a switch or power it down for about 10
minutes to erase its memory. if you do this you'll have to reenter
your pppoe info though so make sure you have it. good luck.
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Re: MAC address rc.conf

2005-06-13 Thread Bob Bomar

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Peter wrote:
|Hi,
|My ISP have aauthorization by username, password AND mac address.
|I currently make PPPoE connection from my laptop(win XP) to them.
|However I want to put FreeBSD router in front of my laptop.
|That is why I will need to make MAC address of outgoing ethernet card
|same as my laptop.
|I plan to make bash script(ifconfig down, ifconfig up)  for that
|purpose.
|However I prefer a little bit cleaner solution ...
| is there any way I can set MAC address for the network card in
|rc.conf ?
|Thanks :-)))
|Kind regards,
|Pete
|

When the system boots, it will read rc.conf, and then
it will pass the ifconfig_inf=... to ifconfig, so
what I do is just to add ether aa:bb:cc:dd:ee:ff to
that line:

ifconfig_fxp0=inet 1.2.3.4 netmask 255.0.0.0 ether aa:bb:cc:dd:ee:ff



- --
Bob Bomar
[EMAIL PROTECTED]
http://www.bomar.us/~bob
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RE: MAC address rc.conf

2005-06-13 Thread John Brooks
just curious...

what happens when your 'router' and your 'laptop' both have the
same MAC address?

--
John Brooks
[EMAIL PROTECTED]

 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] Behalf Of Bob Bomar
 Sent: Monday, June 13, 2005 10:42 AM
 To: Peter; [EMAIL PROTECTED]
 Subject: Re: MAC address  rc.conf


 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1

 Peter wrote:
 |Hi,
 |My ISP have aauthorization by username, password AND mac address.
 |I currently make PPPoE connection from my laptop(win XP) to them.
 |However I want to put FreeBSD router in front of my laptop.
 |That is why I will need to make MAC address of outgoing ethernet card
 |same as my laptop.
 |I plan to make bash script(ifconfig down, ifconfig up)  for that
 |purpose.
 |However I prefer a little bit cleaner solution ...
 | is there any way I can set MAC address for the network card in
 |rc.conf ?
 |Thanks :-)))
 |Kind regards,
 |Pete
 |

 When the system boots, it will read rc.conf, and then
 it will pass the ifconfig_inf=... to ifconfig, so
 what I do is just to add ether aa:bb:cc:dd:ee:ff to
 that line:

 ifconfig_fxp0=inet 1.2.3.4 netmask 255.0.0.0 ether aa:bb:cc:dd:ee:ff



 - --
 Bob Bomar
 [EMAIL PROTECTED]
 http://www.bomar.us/~bob
 -BEGIN PGP SIGNATURE-
 Version: GnuPG v1.2.4 (Darwin)
 Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org

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 8m1uyAMjW8F1SW0E/HNYFBA=
 =d5HD
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Re: MAC address rc.conf

2005-06-13 Thread Peter

   I am also curios and I will found out :)
   Peter
   John Brooks wrote:

just curious...

what happens when your 'router' and your 'laptop' both have the
same MAC address?

--
John Brooks
[EMAIL PROTECTED]



-Original Message-
From: [EMAIL PROTECTED]
[[3]mailto:[EMAIL PROTECTED] Behalf Of Bob Bomar
Sent: Monday, June 13, 2005 10:42 AM
To: Peter; [EMAIL PROTECTED]
Subject: Re: MAC address  rc.conf


-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Peter wrote:
|Hi,
|My ISP have aauthorization by username, password AND mac address.
|I currently make PPPoE connection from my laptop(win XP) to them.
|However I want to put FreeBSD router in front of my laptop.
|That is why I will need to make MAC address of outgoing ethernet card
|same as my laptop.
|I plan to make bash script(ifconfig down, ifconfig up)  for that
|purpose.
|However I prefer a little bit cleaner solution ...
| is there any way I can set MAC address for the network card in
|rc.conf ?
|Thanks :-)))
|Kind regards,
|Pete
|

When the system boots, it will read rc.conf, and then
it will pass the ifconfig_inf=... to ifconfig, so
what I do is just to add ether aa:bb:cc:dd:ee:ff to
that line:

ifconfig_fxp0=inet 1.2.3.4 netmask 255.0.0.0 ether aa:bb:cc:dd:ee:ff



- --
Bob Bomar
[EMAIL PROTECTED]
[6]http://www.bomar.us/~bob
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References

   1. mailto:[EMAIL PROTECTED]
   2. mailto:[EMAIL PROTECTED]
   3. mailto:[EMAIL PROTECTED]
   4. mailto:[EMAIL PROTECTED]
   5. mailto:[EMAIL PROTECTED]
   6. http://www.bomar.us/~bob
   7. http://enigmail.mozdev.org/
   8. mailto:freebsd-questions@freebsd.org
   9. http://lists.freebsd.org/mailman/listinfo/freebsd-questions
  10. mailto:[EMAIL PROTECTED]
  11. mailto:freebsd-questions@freebsd.org
  12. http://lists.freebsd.org/mailman/listinfo/freebsd-questions
  13. mailto:[EMAIL PROTECTED]
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Re: MAC address rc.conf

2005-06-13 Thread Bob Bomar

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Peter wrote:
|I am also curios and I will found out :)
|Peter
|John Brooks wrote:
|
| just curious...
|
| what happens when your 'router' and your 'laptop' both have the
| same MAC address?
|
| --
| John Brooks
| [EMAIL PROTECTED]
|
|
|
| -Original Message-
| From: [EMAIL PROTECTED]
| [[3]mailto:[EMAIL PROTECTED] Behalf Of Bob Bomar
| Sent: Monday, June 13, 2005 10:42 AM
| To: Peter; [EMAIL PROTECTED]
| Subject: Re: MAC address  rc.conf
|
|
| Peter wrote:
| |Hi,
| |My ISP have aauthorization by username, password AND mac address.
| |I currently make PPPoE connection from my laptop(win XP) to them.
| |However I want to put FreeBSD router in front of my laptop.
| |That is why I will need to make MAC address of outgoing ethernet card
| |same as my laptop.
| |I plan to make bash script(ifconfig down, ifconfig up)  for that
| |purpose.
| |However I prefer a little bit cleaner solution ...
| | is there any way I can set MAC address for the network card in
| |rc.conf ?
| |Thanks :-)))
| |Kind regards,
| |Pete
| |
|
| When the system boots, it will read rc.conf, and then
| it will pass the ifconfig_inf=... to ifconfig, so
| what I do is just to add ether aa:bb:cc:dd:ee:ff to
| that line:
|
| ifconfig_fxp0=inet 1.2.3.4 netmask 255.0.0.0 ether aa:bb:cc:dd:ee:ff
|

Just add a similar line to the laptop, and change it by
one number i.e.:

00:11:22:33:44:55 Router
00:11:22:33:44:56 Laptop

- --
Bob Bomar
[EMAIL PROTECTED]
http://www.bomar.us/~bob
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Re: MAC Address

2005-01-28 Thread Hexren
AW I have a firewall running on a FreeBSD 4.10-STABLE with ipfw.

AW My firewall is working very well, but i started to log the rules and
AW somethig strange appears in the log

AW Jan 28 10:44:15 host /kernel: ipfw: 880 Accept MAC in via fxp1
AW Jan 28 10:44:15 host /kernel: ipfw: 880 Accept MAC in via fxp1
AW Jan 28 10:44:15 host /kernel: ipfw: 880 Accept MAC in via rl1
AW Jan 28 10:44:15 host /kernel: ipfw: 880 Accept MAC in via rl1
AW Jan 28 10:44:16 host /kernel: ipfw: 880 Accept MAC in via fxp1

AW what is it 
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-

Rule 880 is logging and says that it accepted a MAC in via an
interface.

Maybe it would help if you told us what rulle 880 actually is...

btw: you're right it is working very well if its purpose is to let MAC
in ;)

Regards
Hexren

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Re: Mac Address Spoofing(!)

2004-11-07 Thread Luke Kearney
On , 2004-11-07 at 06:58, eddie dandrades wrote:
 Hello guys,
 
  I've set out to spoof my gateway's mac address so that I can get a
 new ip address from my cable ISP without having to unplug my modem for
 24 hours as they suggested (and is understandable, thats how long
 their DHCP lease last). I've tried several things, one of which is
 following the instructions here
 http://ezine.daemonnews.org/200406/netgraph.html - I also tried doing:
 ifconfig xl0 hw ether 00:00:00:00:00 to no avail.
 
 I'm just wondering if anyone on this list knows of a way to do it
 successfully or can provide me with a link to some useful
 documentation.
 
 
 Thanks guys!
 
 
 gabriel

Just a thought but many around me have broadband modems from their ISP's
and they faced the same problem you describe and their ISP told them to
disconnect for 2 to 3 hrs but that is hardly workable. The solution was
to reboot the modem. The modem cached the MAC address on the client side
not the ISP's DHCP server. Would that work better in your situation
rather than trying to spoof MAC addresses ?

HTH

LukeK


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Re: Mac Address Spoofing(!)

2004-11-07 Thread gabriel
I tried the resetting for 24 hours (unplugging it from power), tried
to have my isp give me different modem configuration files, no go, my
modem just liked my mac, after following the instructions given I was
able to acquire a new ip address, so far, no harm done.

Cheers!

On Sun, 07 Nov 2004 21:14:23 +0900, Luke Kearney [EMAIL PROTECTED] wrote:
 On , 2004-11-07 at 06:58, eddie dandrades wrote:
 
 
  Hello guys,
 
   I've set out to spoof my gateway's mac address so that I can get a
  new ip address from my cable ISP without having to unplug my modem for
  24 hours as they suggested (and is understandable, thats how long
  their DHCP lease last). I've tried several things, one of which is
  following the instructions here
  http://ezine.daemonnews.org/200406/netgraph.html - I also tried doing:
  ifconfig xl0 hw ether 00:00:00:00:00 to no avail.
 
  I'm just wondering if anyone on this list knows of a way to do it
  successfully or can provide me with a link to some useful
  documentation.
 
 
  Thanks guys!
 
 
  gabriel
 
 Just a thought but many around me have broadband modems from their ISP's
 and they faced the same problem you describe and their ISP told them to
 disconnect for 2 to 3 hrs but that is hardly workable. The solution was
 to reboot the modem. The modem cached the MAC address on the client side
 not the ISP's DHCP server. Would that work better in your situation
 rather than trying to spoof MAC addresses ?
 
 HTH
 
 LukeK
 
 


-- 
gabriel,

Member of:
FreeBSD-Announce
FreeBSD-Hardware
FreeBSD-Multimedia
FreeBSD-questions
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RE: Mac Address Spoofing(!)

2004-11-07 Thread Ara
Hello
(BThere should be a file containing info about your network card. So if you vi
(Bthe file and change the Mac to the one you need, and reboot, then you should
(Bget the new ip. My isp is like yours, dhcp but based on mac address. I can't
(Bremember the location of file containing the network card configuration
(B
(B-Original Message-
(BFrom: [EMAIL PROTECTED]
(B[mailto:[EMAIL PROTECTED] On Behalf Of gabriel
(BSent: November 7, 2004 10:27 AM
(BTo: [EMAIL PROTECTED]
(BCc: [EMAIL PROTECTED]
(BSubject: Re: Mac Address Spoofing(!)
(B
(BI tried the resetting for 24 hours (unplugging it from power), tried
(Bto have my isp give me different modem configuration files, no go, my
(Bmodem just liked my mac, after following the instructions given I was
(Bable to acquire a new ip address, so far, no harm done.
(B
(BCheers!
(B
(BOn Sun, 07 Nov 2004 21:14:23 +0900, Luke Kearney [EMAIL PROTECTED] wrote:
(B On $BF|(B, 2004-11-07 at 06:58, eddie dandrades wrote:
(B 
(B 
(B  Hello guys,
(B 
(B   I've set out to spoof my gateway's mac address so that I can get a
(B  new ip address from my cable ISP without having to unplug my modem for
(B  24 hours as they suggested (and is understandable, thats how long
(B  their DHCP lease last). I've tried several things, one of which is
(B  following the instructions here
(B  http://ezine.daemonnews.org/200406/netgraph.html - I also tried doing:
(B  ifconfig xl0 hw ether 00:00:00:00:00 to no avail.
(B 
(B  I'm just wondering if anyone on this list knows of a way to do it
(B  successfully or can provide me with a link to some useful
(B  documentation.
(B 
(B 
(B  Thanks guys!
(B 
(B 
(B  gabriel
(B 
(B Just a thought but many around me have broadband modems from their ISP's
(B and they faced the same problem you describe and their ISP told them to
(B disconnect for 2 to 3 hrs but that is hardly workable. The solution was
(B to reboot the modem. The modem cached the MAC address on the client side
(B not the ISP's DHCP server. Would that work better in your situation
(B rather than trying to spoof MAC addresses ?
(B 
(B HTH
(B 
(B LukeK
(B 
(B 
(B
(B
(B-- 
(Bgabriel,
(B
(BMember of:
(BFreeBSD-Announce
(BFreeBSD-Hardware
(BFreeBSD-Multimedia
(BFreeBSD-questions
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Re: Mac Address Spoofing(!)

2004-11-06 Thread TM4526
In a message dated 11/6/04 4:59:05 PM Eastern Standard Time, 
[EMAIL PROTECTED] writes:
Hello guys,

I've set out to spoof my gateway's mac address so that I can get a
new ip address from my cable ISP without having to unplug my modem for
24 hours as they suggested (and is understandable, thats how long
their DHCP lease last). I've tried several things, one of which is
following the instructions here
http://ezine.daemonnews.org/200406/netgraph.html - I also tried doing:
ifconfig xl0 hw ether 00:00:00:00:00 to no avail.

I'm just wondering if anyone on this list knows of a way to do it
successfully or can provide me with a link to some useful
documentation.

It is YOUR gateway? Just use a different port, or swap out the ethernet
card. 
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Re: Mac Address Spoofing(!)

2004-11-06 Thread gabriel
Thank you, I'll try that. Sometimes I'm very hesitant to believe
things are so easy, but I'm sure this is gonna work now. Thank you!



On Sat, 06 Nov 2004 16:13:00 -0600, Ben [EMAIL PROTECTED] wrote:
 BSD
 
  1) Bring down the interface: ifconfig xl0 down
 
  2) Enter new MAC address: ifconfig xl0 link 00:00:00:AA:AA:AA
 
  3) Bring up the interface: ifconfig xl0 up
 
 That's all there is to it.
 
 Good luck,
 
 Ben
 
 
 
 eddie dandrades wrote:
 
 Hello guys,
 
  I've set out to spoof my gateway's mac address so that I can get a
 new ip address from my cable ISP without having to unplug my modem for
 24 hours as they suggested (and is understandable, thats how long
 their DHCP lease last). I've tried several things, one of which is
 following the instructions here
 http://ezine.daemonnews.org/200406/netgraph.html - I also tried doing:
 ifconfig xl0 hw ether 00:00:00:00:00 to no avail.
 
 I'm just wondering if anyone on this list knows of a way to do it
 successfully or can provide me with a link to some useful
 documentation.
 
 
 Thanks guys!
 
 
 gabriel
 Member of:
 FreeBSD-Announce
 FreeBSD-Hardware
 FreeBSD-Multimedia
 FreeBSD-questions
 ___
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 To unsubscribe, send any mail to [EMAIL PROTECTED]
 
 
 


-- 
gabriel,

Member of:
FreeBSD-Announce
FreeBSD-Hardware
FreeBSD-Multimedia
FreeBSD-questions
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Re: mac address

2004-01-26 Thread Daan Vreeken [PA4DAN]
On Tuesday 13 January 2004 14:31, Daan Vreeken [PA4DAN] wrote:
 On Tuesday 13 January 2004 13:54, Malik Blent wrote:
  hello
 
  i use freebsd5.1 and i want to reject some computers  whose according to
  Mac Addresses and i recompiled kernel with
  options IPFIREWALL
 
  then i made ipfw.sh with touch and wrote in ;
  ipfw add deny MAC 00:60:67:28:0c:1e any
  ipfw add deny MAC any 00:60:67:28:0c:1e
 
  but I couldn't reject above machine
  What shall i do ?

 You have to it first with a sysctl :
Oops, typo, should have been :
You have to enable it first with a sysctl

 # sysctl -w net.link.ether.ipfw=1

 grtz,
 Daan
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Re: mac address

2004-01-13 Thread Daan Vreeken [PA4DAN]
On Tuesday 13 January 2004 13:54, Malik Blent wrote:
 hello

 i use freebsd5.1 and i want to reject some computers  whose according to
 Mac Addresses and i recompiled kernel with
 options IPFIREWALL

 then i made ipfw.sh with touch and wrote in ;
 ipfw add deny MAC 00:60:67:28:0c:1e any
 ipfw add deny MAC any 00:60:67:28:0c:1e

 but I couldn't reject above machine
 What shall i do ?
You have to it first with a sysctl :
# sysctl -w net.link.ether.ipfw=1

grtz,
Daan
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Re: MAC address change?

2003-08-29 Thread Micheal Patterson
Yes. Especially if they swapped out IP's on a router or replaced a nic.

--

Micheal Patterson
Network Administration
Cancer Care Network
405-733-2230


- Original Message - 
From: Grant Peel [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, August 28, 2003 6:30 PM
Subject: MAC address change?


 Hi all,

 My colo location has recently done some software upgrades on thier routers
 and switches. Would this cause the following messages in my
 /var/log/messages file?

  Aug 27 05:48:17 enterprise /kernel: arp: 65.39.193.154 moved from
 00:0a:41:07:94:80 to 00:06:5b:ee:40:32 on fxp0


 TIA,

 -Grant

 Grant W. Peel
 Server Admin
 [EMAIL PROTECTED]
 http://thenetnow.com

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Re: MAC address change?

2003-08-29 Thread Kevin Stevens
On Thu, 28 Aug 2003, Grant Peel wrote:

 Hi all,

 My colo location has recently done some software upgrades on thier routers
 and switches. Would this cause the following messages in my
 /var/log/messages file?

  Aug 27 05:48:17 enterprise /kernel: arp: 65.39.193.154 moved from
 00:0a:41:07:94:80 to 00:06:5b:ee:40:32 on fxp0

Yes, it could, if that IP address is your next upstream hop.  That's
moving from a Cisco device to a Dell, BTW, not sure it's really an
upgrade...

KeS
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Re: MAC address trouble

2003-01-11 Thread Marcel Stangenberger
 I did an upgrade of my LAN this morning from 10Mbits to 100Mbits (full
 duplex). To do so i bought to Sitecom Fast Ethernet LAN cards (sitecom
 chipset).

 After installation i found out that freebsd gave both the cards the same
 MAC address (here is my arp output)

   192.168.0.2   08-00-08-00-08-00 dynamic
   192.168.0.3   08-00-08-00-08-00 dynamic

 i also found out that these are not the MAC adresses they are supposed to
 have (the DOS tool shows other MAC addresses).

 The driver both cards use is dc

 Can anyone tell me what is going on and if i can change the MAC of one of
 the cards during boot. I know i can change them using

 ifconfig dc0 lladdr newmac

 but i need to do this at boot cause having the same MAC address i lose
 contact to both servers.

I've resolved the issue currently using /etc/rc.local

i also found that this error is already discussed about on freebsd-stable

an explanation of the error can be found here.

http://groups.google.com/groups?hl=nllr=ie=UTF-8oe=UTF-8threadm=amjkrm%241ke4%241%40FreeBSD.csie.NCTU.edu.twrnum=4prev=/groups%3Fq%3DADM983%2B%252B%2Bfreebsd%26hl%3Dnl%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26selm%3Damjkrm%25241ke4%25241%2540FreeBSD.csie.NCTU.edu.tw%26rnum%3D4%26filter%3D0

Marcel

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Re: MAC address trouble

2003-01-11 Thread Marcel Stangenberger
 ifconfig dc0 lladdr newmac

 but i need to do this at boot cause having the same MAC address i lose
 contact to both servers.


friend of mine helped me out here, he found an eeprom tool to change the
MAC

one can download it here
http://www.admtek.com.tw/download/AN983B.htm

Marcel

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