Thank you for the confirmation, Andrei!
Best Regards,
Yu
From: Kea-users <kea-users-boun...@lists.isc.org> on behalf of Andrei Pavel
<and...@isc.org>
Date: Friday, March 1, 2024 at 5:04 AM
To: kea-users@lists.isc.org <kea-users@lists.isc.org>
Subject: Re: [Kea-users] [EXTERNAL] Re: Question regarding to HA for kea-dhcp6
VMs
Yes. That configuration is valid.
On 29/02/2024 23:14, Xiao, Yu (CCI-Atlanta) via Kea-users wrote:
Hi Victoria,
Thank you for your prompt response! But I don’t understand your answer. Are you
able to support the following config? Having two servers with IPv4 addresses
for HA use but serving as kea-dhcp6 servers?
"Dhcp6": {
"hooks-libraries": [
{
"library":
"/usr/lib/kea/hooks/libdhcp_lease_cmds.so<https://urldefense.com/v3/__http:/libdhcp_lease_cmds.so/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Zy0g8bQo$>",
"parameters": { }
},
{
"library":
"/usr/lib/kea/hooks/libdhcp_ha.so<https://urldefense.com/v3/__http:/libdhcp_ha.so/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7ZyoaWzky$>",
"parameters": {
"high-availability": [ {
"this-server-name": "server1",
"mode": "load-balancing",
"peers": [
{
"name": "server1",
"url":
http://192.168.56.33:8000/<https://urldefense.com/v3/__http:/192.168.56.33:8000/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Z2xRBC5P$>,
"role": "primary"
},
{
"name": "server2",
"url":
http://192.168.56.66:8000/<https://urldefense.com/v3/__http:/192.168.56.66:8000/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Z1dbwcxm$>,
"role": "secondary"
}
],
"state-machine": {
"states": [
{
"state": "waiting",
"pause": "once"
}
]
}
} ]
}
}
],
...
}
Best Regards,
Yu
From: Victoria Risk <vi...@isc.org><mailto:vi...@isc.org>
Date: Thursday, February 29, 2024 at 4:09 PM
To: Kea user's list <kea-users@lists.isc.org><mailto:kea-users@lists.isc.org>,
Xiao, Yu (CCI-Atlanta) <yu.x...@cox.com><mailto:yu.x...@cox.com>
Subject: [EXTERNAL] Re: [Kea-users] Question regarding to HA for kea-dhcp6 VMs
Xiao,
This is actually exactly why we implemented HA instead of DHCPv4 failover! So
that you can use the same mechanism for DHCPv6.
I am sorry if the documentation was misleading at all, I think the
documentation focuses on DHCPv4 because that is what most people are using.
Vicky
On Feb 29, 2024, at 4:04 PM, Xiao, Yu (CCI-Atlanta) via Kea-users
<kea-users@lists.isc.org><mailto:kea-users@lists.isc.org> wrote:
Greetings,
I have an interesting question for you esp for ISC developers. I want to only
use kea-dhcp6, which means I need VMs working as DHCP servers to provide IPv6
addresses to other devices so those clients can have IPv6 addresses. But I
don’t care or need that my kea-dhcp6 servers themselves have IPv6 addresses or
not.
But the problem is that in the documentation, I can see they give some examples
which all put the redundancy configurations under the Dhcp4 configuration
section. Does it imply that in order to use the HA feature for kea-dhcp6
servers, my DHCP servers themselves must be configured to have their own IPv6
addresses? I don’t think this makes any sense since in reality we only need the
connectivity between primary and secondary servers no matter this connectivity
is based on IPv4 or IPv6.
"Dhcp4": {
"hooks-libraries": [
{
"library":
"/usr/lib/kea/hooks/libdhcp_lease_cmds.so<https://urldefense.com/v3/__http:/libdhcp_lease_cmds.so/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Zy0g8bQo$>",
"parameters": { }
},
{
"library":
"/usr/lib/kea/hooks/libdhcp_ha.so<https://urldefense.com/v3/__http:/libdhcp_ha.so/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7ZyoaWzky$>",
"parameters": {
"high-availability": [ {
"this-server-name": "server1",
"mode": "load-balancing",
"peers": [
{
"name": "server1",
"url":
http://192.168.56.33:8000/<https://urldefense.com/v3/__http:/192.168.56.33:8000/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Z2xRBC5P$>,
"role": "primary"
},
{
"name": "server2",
"url":
http://192.168.56.66:8000/<https://urldefense.com/v3/__http:/192.168.56.66:8000/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Z1dbwcxm$>,
"role": "secondary"
}
],
"state-machine": {
"states": [
{
"state": "waiting",
"pause": "once"
}
]
}
} ]
}
}
],
...
}
May I ask can I configure my servers like this?
"Dhcp6": {
"hooks-libraries": [
{
"library":
"/usr/lib/kea/hooks/libdhcp_lease_cmds.so<https://urldefense.com/v3/__http:/libdhcp_lease_cmds.so/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Zy0g8bQo$>",
"parameters": { }
},
{
"library":
"/usr/lib/kea/hooks/libdhcp_ha.so<https://urldefense.com/v3/__http:/libdhcp_ha.so/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7ZyoaWzky$>",
"parameters": {
"high-availability": [ {
"this-server-name": "server1",
"mode": "load-balancing",
"peers": [
{
"name": "server1",
"url":
http://192.168.56.33:8000/<https://urldefense.com/v3/__http:/192.168.56.33:8000/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Z2xRBC5P$>,
"role": "primary"
},
{
"name": "server2",
"url":
http://192.168.56.66:8000/<https://urldefense.com/v3/__http:/192.168.56.66:8000/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Z1dbwcxm$>,
"role": "secondary"
}
],
"state-machine": {
"states": [
{
"state": "waiting",
"pause": "once"
}
]
}
} ]
}
}
],
...
}
Related section:
https://downloads.isc.org/isc/kea/2.5.5/doc/html/arm/hooks.html#hooks-high-availability<https://urldefense.com/v3/__https:/downloads.isc.org/isc/kea/2.5.5/doc/html/arm/hooks.html*hooks-high-availability__;Iw!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7Z_ukr4C_$>
Best Regards,
Yu
--
ISC funds the development of this software with paid support subscriptions.
Contact us at
https://www.isc.org/contact/<https://urldefense.com/v3/__https:/www.isc.org/contact/__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7ZxOQsxAh$>
for more information.
To unsubscribe visit
https://lists.isc.org/mailman/listinfo/kea-users<https://urldefense.com/v3/__https:/lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7ZziJLuAX$>.
Kea-users mailing list
Kea-users@lists.isc.org<mailto:Kea-users@lists.isc.org>
https://lists.isc.org/mailman/listinfo/kea-users<https://urldefense.com/v3/__https:/lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!06m2yzYaZYgAjWXnEV6uDsNyyqb1YedvAndIPn2eo6KzSrsYKWP56bTaCyTl-2p7ZziJLuAX$>
--
ISC funds the development of this software with paid support subscriptions.
Contact us at https://www.isc.org/contact/ for more information.
To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users.
Kea-users mailing list
Kea-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/kea-users
