Techniques are described for automatic provisioning of inter-control center communications protocol (ICCP) and automatic provisioning of virtual local area networks (VLANs) on an inter-chassis link (ICL) between multi-chassis link aggregation group (MC-LAG) peer devices. The MC-LAG peer devices may comprise two network devices included in an MC-LAG that is multi-homed to each of a plurality of MC-LAG client devices. In one example, the disclosed techniques enable detection of one or more VLANs configured on a multi-homed interface of the MC-LAG, and automatic provisioning of the detected VLANs on the ICL within the MC-LAG. In another example, the disclosed techniques enable determination of one or more ICCP parameters from MC-LAG configuration information, and automatic provisioning of ICCP over the ICL according to the determined ICCP parameters. The MC-LAG may be included within an enterprise switch of an enterprise network or within a data center switch of a data center network.