With the OMNI_HOSTS environment parameter it is possible to route traffic through a specific interface on a multi-homed Data Protector client. The parameter is documented in the omnirc template file.

# OMNI_HOSTS=<hostname ip mapping values>
# Default: <none>
# OMNI_HOSTS defines which IP address should be used for a host in a
# multi-lan configuration. Use comma as a separator.
# Example:
# OMNI_HOSTS=celeia.domain.com:111.22.3.10,emona.domain.com:111.22.3.20

This could be particularly handy if there's a need to separate control and data communication paths. For example, to be sure the communication between disk agent and media agent is done over a dedicated LAN for data traffic, it's possible to set the correct IP for the media agent with a OMNI_HOSTS entry on the disk agent client. This will override the default resolving specifically on the disk agent client and specifically for DP only. This way the cell server would still contact the client using the standard resolving and the control communication could be done over another network.

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