albertogpz commented on a change in pull request #5766:
URL: https://github.com/apache/geode/pull/5766#discussion_r533197364
##########
File path:
geode-docs/topologies_and_comm/multi_site_configuration/setting_up_a_multisite_system.html.md.erb
##########
@@ -387,3 +387,51 @@ boglesbymac(ny-3:88715)<v4>:36808 | 5371 | 5
|["boglesbymac(ln-1:8865
boglesbymac(ny-4:88724)<v5>:52993 | 5247 | 6
|["boglesbymac(ln-1:88651)<v2>:48277","boglesbymac(ln-4:88681)<v5>:42784","boglesbymac(ln-2:88662)<v3>:12796","boglesbymac(ln-3:88672)<v4>:43675"]
```
+### <a
id="setting_up_a_multisite_system__section_E3A44F85359046C7ADD12861D261637C"
class="no-quick-link"></a>Configuring just one IP address and port to access
all gateway receivers in a site
+
+There could be WAN deployments in which we do not want to expose the IP
address and port of every gateway receiver to the other site but instead expose
just one IP address and port for all gateway receivers. This way, the internal
topology of the site is hidden to the other site. This case is quite common in
cloud deployments, in which a reverse proxy/load balancer distributes incoming
requests to the site (in our case, replication requests) among the available
servers (in our case, gateway receivers).
+
+<%=vars.product_name%> supports this configuration by means of a particular
use of the hostname-for-senders, start-port and end-port parameters of the
gateway receiver.
+
+In order to configure a WAN deployment that hides the gateway receivers behind
the same IP address and port, all the gateway receivers must have the same
value for the hostname-for-senders parameter (the hostname or IP address to be
used by clients to access them) and the same value in the start-port and
end-port parameters (the port to be used by clients to access them).
+
+As an example, a deployment in which all gateway receivers of a site are
accessed via the "gateway1.mycompany.com" hostname and port "1971", every
gateway receiver in that site must be configured as follows:
+
+``` pre
+gfsh> create gateway-receiver --hostname-for-senders="gateway1.mycompany.com"
--start-port=1971 --end-port=1971
+```
+
+The following output shows how the receiver side would look like after this
configuration if 4 gateway recievers were configured:
Review comment:
Good catch, Alberto! Thanks.
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