updating the doc with anyconnect vpn conflicting software

[komal-hashi]

Description

Tested the issue - ICU-17183 for Cisco Anyconnect VPN and have documented the findings and workaround as part of this PR.

PCI review checklist

• I have documented a clear reason for, and description of, the change I am making.
• If applicable, I've documented a plan to revert these changes if they require more than reverting the pull request.
• If applicable, I've documented the impact of any changes to security controls.
  Examples of changes to security controls include using new access control methods, adding or removing logging pipelines, etc.

[hashicorp-cla-app]

Thank you for your submission! We require that all contributors sign our Contributor License Agreement ("CLA") before we can accept the contribution. Read and sign the agreement

Learn more about why HashiCorp requires a CLA and what the CLA includes

_{Have you signed the CLA already but the status is still pending? Recheck it.}

[hashicorp-cla-app]

Thank you for your submission! We require that all contributors sign our Contributor License Agreement ("CLA") before we can accept the contribution. Read and sign the agreement

Learn more about why HashiCorp requires a CLA and what the CLA includes

_{Have you signed the CLA already but the status is still pending? Recheck it.}

[johanbrandhorst]

This looks great, thank you Komal! Lets just remove one unnecessary sentence.

[johanbrandhorst]

I think we can remove this line

Suggested change

This configuration was tested successfully and resolved the issue.

[Dan-Heath]

Thank you for this update! I think it makes sense and reads well. I added some suggestions per our style guidelines. Please let me know if you have any questions or if I can be of any help.

[Dan-Heath]

Suggested change

**Root cause**:

[Dan-Heath]

I think these paragraphs are short and easy enough to understand that we don't need additional headings here.

[Dan-Heath]

Suggested change

	The Boundary Client Agent runs on the default IPv4 range `100.x.x.x`. Cisco AnyConnect VPN treats this range as a *secured range*, which forces DNS queries to resolve through the VPN instead of the Boundary Client Agent. As a result, Boundary aliases cannot be resolved.
	The Boundary Client Agent runs on the default IPv4 range `100.x.x.x`. Cisco AnyConnect VPN treats this range as a **secured range**, which forces DNS queries to resolve through the VPN instead of the Boundary Client Agent. As a result, Boundary aliases cannot be resolved.

[Dan-Heath]

We use bold for emphasis instead of italics because italics can be difficult for some people to see.

[Dan-Heath]

Suggested change

**Workaround**:

[Dan-Heath]

Suggested change

	You can configure the Boundary Client Agent to use a different IPv4 prefix by setting the `v4_prefix` option in the client configuration file. This overrides the default `100.x.x.x` range and avoids the conflict with Cisco AnyConnect VPN.
	You can configure the Boundary Client Agent to use a different IPv4 prefix by setting the `v4_prefix` option in the client configuration file. This setting overrides the default `100.x.x.x` range and avoids the conflict with Cisco AnyConnect VPN.

[Dan-Heath]

Minor rewrite to make it more clear what "This" refers to.

[Dan-Heath]

Suggested change

	<Note>
	The `v4_prefix` can be set to any valid RFC1918 private IPv4 range, as long as it does not overlap with ranges secured by the VPN. Common options include:
	- `10.0.0.0/8`
	- `172.16.0.0/12`
	Choose a range that best fits your environment.
	</Note>
	<Note>
	You can set the `v4_prefix` to any valid RFC1918 private IPv4 range, as long as it does not overlap with ranges secured by the VPN. Common options include:
	- `10.0.0.0/8`
	- `172.16.0.0/12`
	Choose a range that best fits your environment.
	</Note>

[Dan-Heath]

Minor rewrite to use active voice instead of passive ("You can set...").

I added a line space before the bulleted list so it renders correctly. I also added a line space after the opening Note and before the closing Note to ensure that your Markdown renders correctly.

[johanbrandhorst]

Thanks!