diff --git a/roles/network/templates/network/dhcpcd.conf.j2 b/roles/network/templates/network/dhcpcd.conf.j2
index e1a1b57e5..aaec0ad19 100644
--- a/roles/network/templates/network/dhcpcd.conf.j2
+++ b/roles/network/templates/network/dhcpcd.conf.j2
@@ -66,11 +66,11 @@ static domain_name_servers={{ wan_nameserver }}
 
 {% if wan_try_dhcp_then_static_ip == "true" %}
 interface {{ iiab_wan_iface }}
-{% if wan_ipv4ll == "false" %}
-arping 192.0.2.1
-fallback {{ wan_gateway }}
+{% if wan_link_local == "false" %}
+arping 192.0.2.1    # Set Ethernet IP per "cablemodem" DHCP, if DHCP's on wire (after arp request to non-existent IP 192.0.2.1 intentionally fails, per RFC5737)
+fallback {{ wan_gateway }}    # If DHCP not detected after <dhcp_timeout> seconds, set Ethernet Static IP per "profile <wan_gateway>"
 {% else %}
-arping {{ wan_gateway }}
+arping {{ wan_gateway }}    # Perform up to 3 steps: 1. arp <wan_gateway> (if detected, set Ethernet Static IP per "profile <wan_gateway>") 2. Set Ethernet IP per "cablemodem" DHCP, if DHCP's on wire 3. If nec, set Ethernet IP to a link-local address (169.254.x.y)
 {% endif %}
 {% endif %}
 {% endif %}