Best practices
WAN optimization and explicit proxy best practices include:
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WAN optimization tunnel sharing is recommended for similar types of WAN optimization traffic. However, tunnel sharing for different types of traffic is not recommended. For example, aggressive and non-aggressive protocols should not share the same tunnel.
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Active-passive HA is the recommended HA configuration for WAN optimization.
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Configure WAN optimization authentication with specific peers. Accepting any peer is not recommended as this can be less secure.