topic acp.[domain,netmask] secret decoder ring needed in ONTAP Discussions

acp.[domain,netmask] secret decoder ring needed

jaherring — Thu, 05 Jun 2025 07:01:43 GMT

I need to change the IP used by ACP. Unfortunately, in 7.3.5P1 at least, this seems annoyingly obscure. Specifically,

netapp1b*> options acp
acp.domain                   16099520
acp.enabled                  on
acp.netmask                  16580607
acp.port                     e4a

Exactly what version of Rosetta Stone do I need to understand what the 'acp.domain' and 'acp.netmask' are? Or, rather, how to put the one I want to use in this format?

When I first enabled the option it ran through a wizard, but I cannot seem to find a way to restart that wizard. "options acp.enabled off" and "options acp.enabled on" do not do the trick.

The IP/netmask used originally above was 192.168.254.0 and 255.255.252.0, but I want to change it.

Re: acp.[domain,netmask] secret decoder ring needed

aborzenkov — Sun, 23 Jan 2011 10:13:28 GMT

according to acp.domain, it is set to 192.168.245, not to 192.168.254. 192.168.254 would be 16689344.

Convert dotted-decimal to 32 bit integer by placing bytes right-to-left and you get option values. I.e. 192.168.254 == 0xc0.0xa8.0xfe => 0xfea8c0 == 16689344.

I do not know if it safe to play with these options. But of course we do need some official procedure to change ACP network.

Re: acp.[domain,netmask] secret decoder ring needed

Taylor_Riggan — Sun, 23 Jan 2011 14:36:25 GMT

You should be able to run the following commands, and it will run you back through the ACP setup process:

filer1> options acp.enabled off

filer1> options acp.enabled on

After re-enabling ACP, the setup process should prompt you on whether or not you want to make changes to the curent config.

Re: acp.[domain,netmask] secret decoder ring needed

t_depetris — Thu, 07 Apr 2011 08:53:17 GMT

This encoding is strange but it's works fine.

For 192.168.1.0, I use acp.domain = 16777215

For 255.255.255.0, I use acp.netmask = 108736

The official procedure from our technical account manager :

For Data ONTAP 7.3.x:

======

> options acp

acp.domain 69574

acp.enabled on

acp.netmask 16777215

acp.port e0b

> storage show acp

Alternate Control Path: Enabled

Ethernet Interface: e0b

ACP Status: Active

ACP IP Address: 198.15.1.165

ACP Domain: 198.15.1.0

ACP Netmask: 255.255.255.0

ACP Connectivity Status: Full Connectivity

Shelf Module Reset Cnt IP Address FW Version Module Type Status

----------------- ------------ --------------- ------------ ------------ -------

1a.02.A 000 198.15.1.217 01.20 IOM3 active

1a.02.B 000 198.15.1.28 01.20 IOM3 active

> options acp.domain 43200

ACP must be disabled and reenabled, using the acp.enabled option,

before this change takes effect.

> options acp.netmask 16580607

ACP must be disabled and reenabled, using the acp.enabled option,

before this change takes effect.

> options acp.enabled off

Wed Mar 9 22:52:29 GMT [netif.linkInfo:info]: Ethernet e0b: Link configured down.

> storage show acp

Alternate Control Path: Disabled

dasani*> options acp

acp.domain 43200

acp.enabled off

acp.netmask 16580607

acp.port e0b

> options acp.enabled on

ACP processing new configuration settings.

> storage show acp

Alternate Control Path: Enabled

Ethernet Interface: e0b

ACP Status: Active

ACP IP Address: 192.168.2.31

ACP Domain: 192.168.0.0

ACP Netmask: 255.255.252.0

ACP Connectivity Status: Full Connectivity

Shelf Module Reset Cnt IP Address FW Version Module Type Status

----------------- ------------ --------------- ------------ ------------ -------

1a.02.A 000 192.168.1.218 01.20 IOM3 active

1a.02.B 000 192.168.1.78 01.20 IOM3 active

Re: acp.[domain,netmask] secret decoder ring needed

IMAGINETISP — Wed, 25 Jul 2012 07:56:19 GMT

t_depetris wrote:

This encoding is strange but it's works fine.

For 192.168.1.0, I use acp.domain = 16777215

For 255.255.255.0, I use acp.netmask = 108736

A slight correction to the above, you got the domain and netmask numbers the wrong way around.

It should be:

for ACP domain: 192.168.1.0, use acp.domain 108736

for ACP netmask: 255.255.255.0, use acp.netmask 16777215

Below shows the change, of course this should be done to both controllers on your filer and it takes a minute or 2 for "ACP Connectivity Status: Full Connectivity" to be restored.

CtrlA> options acp

acp.domain 69574

acp.enabled on

acp.netmask 16777215

acp.port e0P

CtrlA*> storage show acp

Alternate Control Path: Enabled

Ethernet Interface: e0P

ACP Status: Active

ACP IP address: 198.15.1.204

ACP domain: 198.15.1.0

ACP netmask: 255.255.255.0

ACP Connectivity Status: Full Connectivity

Shelf Module Reset Cnt IP address FW Version Status

---------------------------------------------------------------------

0d.01.A 000 198.15.1.29 01.20 active

0d.01.B 000 198.15.1.59 01.20 active

CtrlA*> options acp.domain 108736

ACP must be disabled and reenabled, using the acp.enabled option,

before this change takes effect.

CtrlA*> options acp.netmask 16777215

ACP must be disabled and reenabled, using the acp.enabled option,

before this change takes effect.

CtrlA*> options acp.enabled off

CtrlA*> storage show acp

Alternate Control Path: Disabled

CtrlA*> options acp

acp.domain 108736

acp.enabled off

acp.netmask 16777215

acp.port e0P

CtrlA*> options acp.enabled on

CtrlA*> storage show acp

Alternate Control Path: Enabled

Ethernet Interface: e0P

ACP Status: Active

ACP IP address: 192.168.1.204

ACP domain: 192.168.1.0

ACP netmask: 255.255.255.0

ACP Connectivity Status: Full Connectivity

Shelf Module Reset Cnt IP address FW Version Status

---------------------------------------------------------------------

0d.01.A 000 192.168.1.29 01.20 active

0d.01.B 000 192.168.1.59 01.20 active