Question: When utilizing IKE over pure IPv6 in a telecom network, what challenge may arise due to typical MTU sizes, impacting packet transmission?
Option 1: Increased latency due to mandatory header compression
Option 2: Reduced security due to the inability to use larger keys
Option 3: Difficulty with packet routing through certain firewalls
Option 4: Necessity for fragmentation of long packets, potentially causing interoperability issues with some VPN gateways
Explanation: In pure IPv6 environments, typical MTU sizes do not increase, meaning long IKE packets (e.g., those containing multiple certificates) will still need to be fragmented. This can lead to interoperability issues with VPN gateways that do not support IKE packet fragmentation, highlighting a significant challenge in maintaining seamless network operations.