One possible option:
Configure the router with a separate /32 subnet and interface with device A plugged into it.
(Assuming router described is Mikrotik, Probably just remove ETH1 from the bridge)
This subnet/interface is added as a member of the LAN interface list.
(And removed from WAN interface list membership if necessary)
The new subnet/interface IP address will be 192.168.100.xxx/32 network 192.168.100.230/32
The main LAN/bridge interface has 192.168.100.0/24 configured on it (presumably as current)
Both interfaces have an IP addresses (different) in the 192.168.100.0/24 range assigned to them.
Both interfaces have proxy arp enabled. (Important)
Then create a new dst-NAT rule:
Traffic from 192.168.100.230 to 192.168.100.100 is dst-natted to 192.168.100.235
With luck that might enough to work.
Configure the router with a separate /32 subnet and interface with device A plugged into it.
(Assuming router described is Mikrotik, Probably just remove ETH1 from the bridge)
This subnet/interface is added as a member of the LAN interface list.
(And removed from WAN interface list membership if necessary)
The new subnet/interface IP address will be 192.168.100.xxx/32 network 192.168.100.230/32
The main LAN/bridge interface has 192.168.100.0/24 configured on it (presumably as current)
Both interfaces have an IP addresses (different) in the 192.168.100.0/24 range assigned to them.
Both interfaces have proxy arp enabled. (Important)
Then create a new dst-NAT rule:
Traffic from 192.168.100.230 to 192.168.100.100 is dst-natted to 192.168.100.235
With luck that might enough to work.
Statistics: Posted by rplant — Thu May 23, 2024 6:42 am