The table below provides a summary of the hardware load balancer affinity requirements:

Client/user location

External web services FQDN affinity requirements

Internal web services FQDN affinity requirements

Lync web access (internal and external users)

Mobile device (internal and external users)

None required

Source address affinity

Lync web access (external users only)

Mobile device (internal and external users)

None required

Source address affinity

Lync web access (internal and external users)

Mobile device (not deployed)

None required

Source address affinity