Microsoft® Lync Server 2010 Unleashed

Straddling the Internal Firewall

Another firewall that, unfortunately, is used too often is where the internal interface of the Edge Server does not pass through any firewall. Instead, it straddles the firewall by being connected directly to the internal network. Administrators still secure the external adapter in this scenario. However, instead of creating the appropriate rules for the internal adapter, they just place it on the internal network.

Figure 27.7 Lync Server Firewall Straddling

There is not much benefit to straddling a firewall with the internal adapter because, just like the previous scenario, several risks are associated with placing ...