In order to replicate with VVR, it must be installed on both machines.
Would strongly recommend you read the following documents to get a better understanding of how VVR works and what is required:
(links below are for VVR 5.1 on Solaris, if using a different version see http://vos.symantec.com/documents - html versions are also available here)
VVR 5.1 (Solaris) Administrator's Guide:
http://sfdoccentral.symantec.com/sf/5.1/solaris/pdf/vvr_admin.pdf
VVR 5.1 (Solaris) Planning and Tuning Guide:
http://sfdoccentral.symantec.com/sf/5.1/solaris/pdf/vvr_planning.pdf
If you still have questions after going through the above, then you can post more specific questions to follow up.