In the meantime i found a solution.
The problem is, that a priori only the target IP is known, but not the interface index, so one can not construct the necessary oid for one arp entry
but as one wants to ask the gateway for this arp entry,
one has anyway to guess the gateway IP (probably something like ip1....
If you have a VLAN that is trunked between switches, then you have one layer 2 domain across all the switches. Unless you have some special cases, all devices on that VLAN would use the same gateway, which would be one SVI on only one of the switches. All devices on the VLAN will use that one gateway.
One exception to this is the use of a First Hop ...