Final answer:
The drawback of using NLB multicast is that it relies on Multicast IP addresses, which can cause issues with network configuration and infrastructure. Configuring and troubleshooting NLB multicast can be complex, and it may not be supported by all network devices and operating systems.
Step-by-step explanation:
The drawback of using NLB multicast is that it relies on Multicast IP addresses, which can encounter issues with network configuration and infrastructure. Multicast traffic may be blocked or restricted by routers, firewalls, and other network devices. This can result in a lack of connectivity and communication between nodes.
Another drawback is the complexity of configuring and troubleshooting NLB multicast. Setting up NLB multicast requires configuring parameters such as multicast addresses and MAC addresses, which can be challenging for inexperienced users. Troubleshooting multicast issues can also be difficult due to the distributed nature of the technology.
Furthermore, NLB multicast may not be supported by all network devices and operating systems. The compatibility of NLB multicast can vary depending on the specific hardware and software used in the network infrastructure. This can limit the availability and effectiveness of NLB multicast in certain environments.