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Today's Topics:
1. Kea DHCP 1.3 issue (Mikhail Yagodin)
2. Re: Kea DHCP 1.3 issue (Francis Dupont)
----------------------------------------------------------------------
Message: 1
Date: Wed, 22 Nov 2017 14:53:41 +0700
From: Mikhail Yagodin <[email protected]>
To: [email protected]
Subject: [kea-dev] Kea DHCP 1.3 issue
Message-ID: <[email protected]>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi, everyone! My name is Mikhail.
Please help me to solve my problem that I've faced while migrating from
old dhcpd to Kea v1.3.
Quote from dhcpd.conf:
"class "xx.yy.zz class" {
? match if(
??? (binary-to-ascii(10, 8, ".", packet(12, 3)) = "xx.yy.zz")
? );
}
"
Here we compare part of source IP address with certain pattern.
How can I solve this issue? I suppose that I need to have at least two
functions "reverse" and "findfirst" to succeed, or may you please
suggest another solution?
Furthermore, if these functions do not exist, can I implement them to
contribute to this project?
Thanks.
Mikhail Yagodin
------------------------------
Message: 2
Date: Wed, 22 Nov 2017 09:24:05 +0000
From: Francis Dupont <[email protected]>
To: Mikhail Yagodin <[email protected]>
Cc: [email protected]
Subject: Re: [kea-dev] Kea DHCP 1.3 issue
Message-ID: <[email protected]>
Content-Type: text/plain; charset="us-ascii"
If I count well packet(12, 3) are the first 3 octets of the ciaddr
field so you should use the pkt4.ciaddr token. You have no
binary-to-ascii but you have IP address literals so you should
compare substring(<arg>, 0, 3) on each side so something like
"client-classes": [
{
"name": "xx.yy.zz class",
"test": "substring(pkt4.ciaddr, 0, 3) == substring(xx.yy.xx.0, 0, 3)"
}
]
BTW it is not the best idea to have spaces inside class names even a
priori only ' and \n should be forbidden. Note that currently only
the empty name is not allowed...
Thanks
Francis Dupont <[email protected]>
------------------------------
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End of kea-dev Digest, Vol 44, Issue 2
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