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    <title>topic Maestro Host Access - Best Practice in Hyperscale Firewall (Maestro)</title>
    <link>https://community.checkpoint.com/t5/Hyperscale-Firewall-Maestro/Maestro-Host-Access-Best-Practice/m-p/258767#M3667</link>
    <description>&lt;P&gt;Maestro operates with predefined&amp;nbsp;&lt;A href="https://sc1.checkpoint.com/documents/Appliances/GSG_Maestro/EN/Topics/Internal-IP-Addresses.htm" target="_self"&gt;Internal IP Addresses&lt;/A&gt;.&lt;BR /&gt;&lt;BR /&gt;In order to allow connections between SGMs and MHOs, like the &lt;A href="https://sc1.checkpoint.com/documents/R82/WebAdminGuides/EN/CP_R82_ScalablePlatforms_AdminGuide/Content/Topics-SPG/CLI/member.htm" target="_self"&gt;member&lt;/A&gt; command, it's required to add these IPs to the &lt;A href="https://sc1.checkpoint.com/documents/R82/WebAdminGuides/EN/CP_R82_Gaia_AdminGuide/Content/Topics-GAG/Host-Access.htm" target="_self"&gt;Gaia Host Access&lt;/A&gt; list, in addition to monitoring probes and your Firewall Management DMZ that manages your Check Point security infrastructure.&lt;BR /&gt;&lt;BR /&gt;A typical Gaia Host Access list on Maestro security groups would look like this:&lt;/P&gt;
&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="image.png" style="width: 489px;"&gt;&lt;img src="https://community.checkpoint.com/t5/image/serverpage/image-id/31591iF8D10876A5663428/image-size/large?v=v2&amp;amp;px=999" role="button" title="image.png" alt="image.png" /&gt;&lt;/span&gt;&lt;/P&gt;
&lt;TABLE border="1"&gt;
&lt;TBODY&gt;
&lt;TR&gt;
&lt;TD height="25px" style="background-color: #ff91af;"&gt;&lt;STRONG&gt;Type&lt;/STRONG&gt;&lt;/TD&gt;
&lt;TD height="25px" style="background-color: #ff91af;"&gt;&lt;STRONG&gt;IP / Netmask&lt;/STRONG&gt;&lt;/TD&gt;
&lt;TD height="25px" style="background-color: #ff91af;"&gt;&lt;STRONG&gt;Description&lt;/STRONG&gt;&lt;/TD&gt;
&lt;/TR&gt;
&lt;TR&gt;
&lt;TD width="25%" height="25px"&gt;Host&lt;/TD&gt;
&lt;TD width="25%" height="25px"&gt;&lt;CODE&gt;127.0.0.1&lt;/CODE&gt;&lt;/TD&gt;
&lt;TD width="50%" height="25px"&gt;Localhost&lt;/TD&gt;
&lt;/TR&gt;
&lt;TR&gt;
&lt;TD width="25%" height="25px"&gt;Network&lt;/TD&gt;
&lt;TD width="25%" height="25px"&gt;&lt;CODE&gt;192.0.2.0 /24&lt;/CODE&gt;&lt;/TD&gt;
&lt;TD width="50%" height="25px"&gt;Maestro Internal Sync Network&lt;/TD&gt;
&lt;/TR&gt;
&lt;TR&gt;
&lt;TD width="25%" height="25px"&gt;Network&lt;/TD&gt;
&lt;TD width="25%" height="25px"&gt;&lt;CODE&gt;198.51.101.0 /24&lt;/CODE&gt;&lt;/TD&gt;
&lt;TD width="50%" height="25px"&gt;CIN (&lt;STRIKE&gt;Chassis&lt;/STRIKE&gt; Maestro Internal Network)&lt;/TD&gt;
&lt;/TR&gt;
&lt;TR&gt;
&lt;TD width="25%" height="25px"&gt;Network&lt;/TD&gt;
&lt;TD width="25%" height="25px"&gt;&lt;CODE&gt;203.0.113.0 /24&lt;/CODE&gt;&lt;/TD&gt;
&lt;TD width="50%" height="25px"&gt;Maestro Inter-Site Sync Network&lt;/TD&gt;
&lt;/TR&gt;
&lt;/TBODY&gt;
&lt;/TABLE&gt;
&lt;P&gt;&lt;BR /&gt;Depending on the number of security groups, there could also be additional Maestro CIN networks, such as:&lt;BR /&gt;198.51.10&lt;CODE&gt;2&lt;/CODE&gt;.0 / 24,&amp;nbsp;198.51.10&lt;CODE&gt;3&lt;/CODE&gt;.0 / 24&amp;nbsp;and so on, as &lt;A href="https://sc1.checkpoint.com/documents/Appliances/GSG_Maestro/EN/Topics/Internal-IP-Addresses.htm" target="_self"&gt;described here&lt;/A&gt;.&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;Note&lt;/STRONG&gt;: Check Point may hide some of these networks in Gaia WebUI, verify them in GClish via: &lt;CODE&gt;show configuration allowed-client&lt;/CODE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;Let's discuss how the Gaia Host Access list should be configured on Maestro HyperScale Orchestrators (MHO).&lt;/STRONG&gt;&lt;BR /&gt;&lt;BR /&gt;---&lt;BR /&gt;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/1967"&gt;@Lari_Luoma&lt;/a&gt;&amp;nbsp;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/4113"&gt;@Anatoly&lt;/a&gt;&amp;nbsp;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/2895"&gt;@Tom_Kendrick&lt;/a&gt;&amp;nbsp;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/1009"&gt;@Laszlo_Csosza&lt;/a&gt;&amp;nbsp;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/5357"&gt;@Jochen_Hoechner&lt;/a&gt;&amp;nbsp;&lt;/P&gt;</description>
    <pubDate>Thu, 13 Nov 2025 09:31:28 GMT</pubDate>
    <dc:creator>Danny</dc:creator>
    <dc:date>2025-11-13T09:31:28Z</dc:date>
    <item>
      <title>Maestro Host Access - Best Practice</title>
      <link>https://community.checkpoint.com/t5/Hyperscale-Firewall-Maestro/Maestro-Host-Access-Best-Practice/m-p/258767#M3667</link>
      <description>&lt;P&gt;Maestro operates with predefined&amp;nbsp;&lt;A href="https://sc1.checkpoint.com/documents/Appliances/GSG_Maestro/EN/Topics/Internal-IP-Addresses.htm" target="_self"&gt;Internal IP Addresses&lt;/A&gt;.&lt;BR /&gt;&lt;BR /&gt;In order to allow connections between SGMs and MHOs, like the &lt;A href="https://sc1.checkpoint.com/documents/R82/WebAdminGuides/EN/CP_R82_ScalablePlatforms_AdminGuide/Content/Topics-SPG/CLI/member.htm" target="_self"&gt;member&lt;/A&gt; command, it's required to add these IPs to the &lt;A href="https://sc1.checkpoint.com/documents/R82/WebAdminGuides/EN/CP_R82_Gaia_AdminGuide/Content/Topics-GAG/Host-Access.htm" target="_self"&gt;Gaia Host Access&lt;/A&gt; list, in addition to monitoring probes and your Firewall Management DMZ that manages your Check Point security infrastructure.&lt;BR /&gt;&lt;BR /&gt;A typical Gaia Host Access list on Maestro security groups would look like this:&lt;/P&gt;
&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="image.png" style="width: 489px;"&gt;&lt;img src="https://community.checkpoint.com/t5/image/serverpage/image-id/31591iF8D10876A5663428/image-size/large?v=v2&amp;amp;px=999" role="button" title="image.png" alt="image.png" /&gt;&lt;/span&gt;&lt;/P&gt;
&lt;TABLE border="1"&gt;
&lt;TBODY&gt;
&lt;TR&gt;
&lt;TD height="25px" style="background-color: #ff91af;"&gt;&lt;STRONG&gt;Type&lt;/STRONG&gt;&lt;/TD&gt;
&lt;TD height="25px" style="background-color: #ff91af;"&gt;&lt;STRONG&gt;IP / Netmask&lt;/STRONG&gt;&lt;/TD&gt;
&lt;TD height="25px" style="background-color: #ff91af;"&gt;&lt;STRONG&gt;Description&lt;/STRONG&gt;&lt;/TD&gt;
&lt;/TR&gt;
&lt;TR&gt;
&lt;TD width="25%" height="25px"&gt;Host&lt;/TD&gt;
&lt;TD width="25%" height="25px"&gt;&lt;CODE&gt;127.0.0.1&lt;/CODE&gt;&lt;/TD&gt;
&lt;TD width="50%" height="25px"&gt;Localhost&lt;/TD&gt;
&lt;/TR&gt;
&lt;TR&gt;
&lt;TD width="25%" height="25px"&gt;Network&lt;/TD&gt;
&lt;TD width="25%" height="25px"&gt;&lt;CODE&gt;192.0.2.0 /24&lt;/CODE&gt;&lt;/TD&gt;
&lt;TD width="50%" height="25px"&gt;Maestro Internal Sync Network&lt;/TD&gt;
&lt;/TR&gt;
&lt;TR&gt;
&lt;TD width="25%" height="25px"&gt;Network&lt;/TD&gt;
&lt;TD width="25%" height="25px"&gt;&lt;CODE&gt;198.51.101.0 /24&lt;/CODE&gt;&lt;/TD&gt;
&lt;TD width="50%" height="25px"&gt;CIN (&lt;STRIKE&gt;Chassis&lt;/STRIKE&gt; Maestro Internal Network)&lt;/TD&gt;
&lt;/TR&gt;
&lt;TR&gt;
&lt;TD width="25%" height="25px"&gt;Network&lt;/TD&gt;
&lt;TD width="25%" height="25px"&gt;&lt;CODE&gt;203.0.113.0 /24&lt;/CODE&gt;&lt;/TD&gt;
&lt;TD width="50%" height="25px"&gt;Maestro Inter-Site Sync Network&lt;/TD&gt;
&lt;/TR&gt;
&lt;/TBODY&gt;
&lt;/TABLE&gt;
&lt;P&gt;&lt;BR /&gt;Depending on the number of security groups, there could also be additional Maestro CIN networks, such as:&lt;BR /&gt;198.51.10&lt;CODE&gt;2&lt;/CODE&gt;.0 / 24,&amp;nbsp;198.51.10&lt;CODE&gt;3&lt;/CODE&gt;.0 / 24&amp;nbsp;and so on, as &lt;A href="https://sc1.checkpoint.com/documents/Appliances/GSG_Maestro/EN/Topics/Internal-IP-Addresses.htm" target="_self"&gt;described here&lt;/A&gt;.&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;Note&lt;/STRONG&gt;: Check Point may hide some of these networks in Gaia WebUI, verify them in GClish via: &lt;CODE&gt;show configuration allowed-client&lt;/CODE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;Let's discuss how the Gaia Host Access list should be configured on Maestro HyperScale Orchestrators (MHO).&lt;/STRONG&gt;&lt;BR /&gt;&lt;BR /&gt;---&lt;BR /&gt;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/1967"&gt;@Lari_Luoma&lt;/a&gt;&amp;nbsp;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/4113"&gt;@Anatoly&lt;/a&gt;&amp;nbsp;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/2895"&gt;@Tom_Kendrick&lt;/a&gt;&amp;nbsp;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/1009"&gt;@Laszlo_Csosza&lt;/a&gt;&amp;nbsp;&lt;a href="https://community.checkpoint.com/t5/user/viewprofilepage/user-id/5357"&gt;@Jochen_Hoechner&lt;/a&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Thu, 13 Nov 2025 09:31:28 GMT</pubDate>
      <guid>https://community.checkpoint.com/t5/Hyperscale-Firewall-Maestro/Maestro-Host-Access-Best-Practice/m-p/258767#M3667</guid>
      <dc:creator>Danny</dc:creator>
      <dc:date>2025-11-13T09:31:28Z</dc:date>
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