To set this up follow the SnapVault for SMVI User Guide to install SV-SMVI and setup you SnapVault relationships between base filers (vfiler0) as normal.
When you reach the section to setup the sv-smvi.cmd file you need to add an additional switch -svip and specifiy the base filers (vfiler0) ip address. See example below where Primary filers ip address is 10.1.1.1
"C:\Program Files\NetApp\sv-smvi\sv-smvi.exe" -svuser ****** -svpasswd ******* -svip 10.1.1.1
Also make sure options httpd.admin.enable on is set on primary and secondary filers.