Specifies the Ipv4 address to be used as the source for performing
an OAM ping operation when tmnxOamPingCtlTestMode has a value of
'mfibPing' in which case this parameter is required. If
tmnxOamPingCtlTestMode is different from 'mfibPing' this field is
ignored.
This object was obsoleted in release 4.0 and replaced with
InetAddress objects tmnxOamMfibPingCtlSrcAddrType and
tmnxOamMfibPingCtlSrcAddress.