Can I redirect traffic at L3/L4 without NAT?

[senseivita]

Think an HTTP status code 301/302 but on layer 4...or an ICMP redirect (I think) but on an unrelated network on another public address.

By redirect I mean either point the client to go directly to the real address or route the traffic through on its behalf--hopefully symmetrically.

Is not possible, is it?

[viragomann]

@skilledinept
No way I can think of.
You can simply forward the traffic, but only with masquerading so that the destination sees your IP instead of the origin client.