Firewall Port Requirements for Lync Online
Another important consideration with regard to planning the network for Lync Online is firewall port requirements. Lync Online does not have any port requirements for inbound traffic; however, many organizations use outbound filters or proxy servers to control the type of traffic that is permitted outbound. If outbound filtering is used, specific ports need to be opened on the firewall or proxy server to allow Lync outbound traffic, as shown in Table 28.4.
Table 28.4. Firewall Port Requirements for Lync Online
Tip
Not all ports listed in Table 28.4 are required for all Lync Online deployments. For ...
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