Configuring the virtual MAC address
The virtual MAC address is shared by the primary and secondary Citrix Gateway appliances in a high availability setup.
In a high availability setup, the primary Citrix Gateway owns all the floating IP addresses, such as the mapped IP address or the virtual IP address. It responds to address resolution protocol (ARP) requests for these IP addresses with its own MAC address. As a result, the ARP table of an external device (such as a router) is updated with the floating IP address and the primary Citrix Gateway MAC address. When a failover occurs, the secondary Citrix Gateway takes over as the new primary Citrix Gateway. It then uses gratuitous address resolution protocol (GARP) to advertise the floating IP addresses that it acquired from the primary appliance. The MAC address, which the new primary appliance advertises, is that of its own interface.
Some devices do not accept GARP messages generated by Citrix Gateway. As a result, some of the external devices retain the old IP-to-MAC mapping advertised by the old primary Citrix Gateway. This situation can cause a site to become unavailable. To resolve the problem, you configure a virtual MAC address on both Citrix Gateway appliances of a high availability pair. This configuration implies that both Citrix Gateway appliances have identical MAC addresses. As a result, when failover occurs, the MAC address of the secondary Citrix Gateway remains unchanged and ARP tables on the external devices do not need to be updated.
To create a virtual MAC address, create a virtual router identifier (ID) and bind it to an interface. In a high availability setup, the user needs to bind the ID to the interfaces on both the appliances.
When the virtual router ID is bound to an interface, the system generates a virtual MAC address with the virtual router ID as the last octet. An example of the generic virtual MAC address is 00:00:5e:00:01:<VRID>. For example, if you created a virtual router ID of value 60 and bind it to an interface, the resulting virtual MAC address is 00:00:5e:00:01:3c, where 3c is the hex representation of the virtual router ID. You can create 255 virtual router IDs ranging from 1 through 254.
You can configure virtual MAC addresses for IPv4 and IPv6.
The official version of this content is in English. Some of the Cloud Software Group documentation content is machine translated for your convenience only. Cloud Software Group has no control over machine-translated content, which may contain errors, inaccuracies or unsuitable language. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, suitability, or correctness of any translations made from the English original into any other language, or that your Cloud Software Group product or service conforms to any machine translated content, and any warranty provided under the applicable end user license agreement or terms of service, or any other agreement with Cloud Software Group, that the product or service conforms with any documentation shall not apply to the extent that such documentation has been machine translated. Cloud Software Group will not be held responsible for any damage or issues that may arise from using machine-translated content.
DIESER DIENST KANN ÜBERSETZUNGEN ENTHALTEN, DIE VON GOOGLE BEREITGESTELLT WERDEN. GOOGLE LEHNT JEDE AUSDRÜCKLICHE ODER STILLSCHWEIGENDE GEWÄHRLEISTUNG IN BEZUG AUF DIE ÜBERSETZUNGEN AB, EINSCHLIESSLICH JEGLICHER GEWÄHRLEISTUNG DER GENAUIGKEIT, ZUVERLÄSSIGKEIT UND JEGLICHER STILLSCHWEIGENDEN GEWÄHRLEISTUNG DER MARKTGÄNGIGKEIT, DER EIGNUNG FÜR EINEN BESTIMMTEN ZWECK UND DER NICHTVERLETZUNG VON RECHTEN DRITTER.
CE SERVICE PEUT CONTENIR DES TRADUCTIONS FOURNIES PAR GOOGLE. GOOGLE EXCLUT TOUTE GARANTIE RELATIVE AUX TRADUCTIONS, EXPRESSE OU IMPLICITE, Y COMPRIS TOUTE GARANTIE D'EXACTITUDE, DE FIABILITÉ ET TOUTE GARANTIE IMPLICITE DE QUALITÉ MARCHANDE, D'ADÉQUATION À UN USAGE PARTICULIER ET D'ABSENCE DE CONTREFAÇON.
ESTE SERVICIO PUEDE CONTENER TRADUCCIONES CON TECNOLOGÍA DE GOOGLE. GOOGLE RENUNCIA A TODAS LAS GARANTÍAS RELACIONADAS CON LAS TRADUCCIONES, TANTO IMPLÍCITAS COMO EXPLÍCITAS, INCLUIDAS LAS GARANTÍAS DE EXACTITUD, FIABILIDAD Y OTRAS GARANTÍAS IMPLÍCITAS DE COMERCIABILIDAD, IDONEIDAD PARA UN FIN EN PARTICULAR Y AUSENCIA DE INFRACCIÓN DE DERECHOS.
本服务可能包含由 Google 提供技术支持的翻译。Google 对这些翻译内容不做任何明示或暗示的保证，包括对准确性、可靠性的任何保证以及对适销性、特定用途的适用性和非侵权性的任何暗示保证。
このサービスには、Google が提供する翻訳が含まれている可能性があります。Google は翻訳について、明示的か黙示的かを問わず、精度と信頼性に関するあらゆる保証、および商品性、特定目的への適合性、第三者の権利を侵害しないことに関するあらゆる黙示的保証を含め、一切保証しません。
ESTE SERVIÇO PODE CONTER TRADUÇÕES FORNECIDAS PELO GOOGLE. O GOOGLE SE EXIME DE TODAS AS GARANTIAS RELACIONADAS COM AS TRADUÇÕES, EXPRESSAS OU IMPLÍCITAS, INCLUINDO QUALQUER GARANTIA DE PRECISÃO, CONFIABILIDADE E QUALQUER GARANTIA IMPLÍCITA DE COMERCIALIZAÇÃO, ADEQUAÇÃO A UM PROPÓSITO ESPECÍFICO E NÃO INFRAÇÃO.