** Description changed:
Hello. Because on Ubuntu 12.04 LTS an ArpON package is pretty outdated
(ver. 2.0-2.1) I've decided to use a version from a Vivid release - 2.7.
It seems that ArpON ver. 2.7 has a bug related to a DARPI anti Arp
- Poisoning techniques. Because, I am using a DHCP method to obtain an IP
+ Poisoning techniques. Because I am using a DHCP method to obtain an IP
address, I had to use a DARPI method (Dynamin Arp Inspect.) instead of
SARPI (Static Arp Inspect). After installation via 'apt-get' utility,
configuring "arpon" file from '/etc/default/' directory and uncomment
line responsible for a DARPI method, ArpON failed to start with a
following error:
$ sudo /etc/init.d/arpon start
* Starting anti ARP poisoning daemon arpon
20:38:55 PID = </var/run/arpon.pid>
/usr/bin/arpon: invalid option -- 'd' [fail]
- For a DARPI method a line in the '/etc/default/arpon' file looks this
- way:
+ By default a line responsible for a DARPI technique (in the
+ '/etc/default/arpon' file) looks this way:
DAEMON_OPTS="-q -f /var/log/arpon/arpon.log -g -d"
According to the Ubuntu manpage[1] '-g' flag stands for "Works in
logging mode", since '-d' flag means "Manages Arp Cache dynamically".
Everything should work okay, but it does not. I've tried many
possibilities, configurations etc., but nothing worked.
And it seems, that a new ArpON 2.7 version requires a '-D' flag instead
'-d'. At least in Ubuntu 12.04 LTS and it seems that in others flavors
(Xubuntu etc) also. Please see:
DAEMON_OPTS="-q -f /var/log/arpon/arpon.log -g -D"
After this small change everything started to work okay:
$ sudo /etc/init.d/arpon start
* Starting anti ARP poisoning daemon arpon
20:43:32 PID = </var/run/arpon.pid> [OK]
One more test, to be one hundred percent sure: status of anti ARP
poisoning daemon arpon is [OK] after running 'sudo /etc/init.d/arpon
status' command, . Here are some technical details:
* Ubuntu 3.2.0-98.138-generic-pae 3.2.75 ('cat /proc/version_signature'
command result)
* lsb_release -rd
Description: Ubuntu 12.04.5 LTS
Release: 12.04
* arpon: 2.7.2-1
By the way: ArpON sometimes crashing with "SIGSEGV in pthread_kill()"
(right after user login), but I have to create a new bug report.
Best regards.
_____________
[1] http://manpages.ubuntu.com/manpages/trusty/man8/arpon.8.html
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https://bugs.launchpad.net/bugs/1540807
Title:
ArpON ver. 2.7: the DARPI and -d (--darpi) flag bug.
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