Yes, MikroTik RouterOS is capable of load balancing for IPv6, although the process may be a little more complex compared to IPv4 due to some inherent differences in traffic management and routing capabilities.

Load balancing on IPv6 networks can significantly improve connection efficiency and redundancy by distributing traffic across multiple network links.

We explain how it can be configured:

1. Using ECMP (Equal Cost Multi-Path Routing)

ECMP is a technique that allows MikroTik RouterOS to distribute traffic equally across multiple paths that have the same route cost. This is particularly useful in scenarios where you have multiple internet connections available.

ECMP configuration for IPv6:

1. Defines IPv6 routes with the same cost in the routing table. This is done by adding IPv6 routes through IPv6 -> Routes in RouterOS.
2. Set routes with the same destination prefix, but different gateways.
3. Make sure to select ECMP as the routing method for those routes.

2. NTH Load Balancing

The NTH method allows for more customized load distribution, where you can define rules that specify how traffic should be directed across multiple links based on a numerical sequence of packets or connections.

Configuring NTH Rolling for IPv6:

1. Go to IPv6 -> Firewall -> Mangle and create rules that mark packets or connections for different links.
2. Use the option nth to specify how often the route should be changed.
3. Create routing rules based on established flags, directing traffic through the different interfaces or gateways.

3. PCC (Per Connection Classifier)

PCC is a more advanced load balancing technique that classifies traffic based on selected parameters, such as IP addresses and source and destination ports, allowing granular distribution of traffic across multiple lines.

PCC configuration for IPv6:

1. Set the PCC in the section Mangle of the firewall to classify the connections.
2. Defines the rules that distribute traffic according to PCC classification. You can assign different connections to different interfaces based on these criteria.
3. Set specific routes for each classification to direct traffic through the desired interfaces.

Important considerations

• Testing and monitoring: Due to the complexity of load balancing, especially in IPv6, it is crucial to perform extensive testing and performance monitoring to ensure that traffic is distributed as expected.
• Safety: Be sure to review and adjust security policies to avoid any exposure or vulnerabilities that may be introduced by multiple paths and connections.

Implementing IPv6 load balancing with MikroTik can deliver significant improvements in network capacity and redundancy, but requires careful configuration and a clear understanding of IPv6 networking technologies.