David wrote:
documentation that it could be easily solved with a new network device but I need another solution as installing a new network card is simply not possible.
It seems to those footers make people seem foolish, there is some doubt as to their efficacy, and they irritate people (think big sigs, and the longstanding guidelines on those). IMV if you send me something, it's just like real mail: it's mine to do with as I wish. Unless we have a prearranged agreement to the contrary. But, IANAL. Besides, no doubt law variies from country to country and with intercourse between countries. For creating multiple interfaces: ifconfig dummy0 ... ifconfig eth0:1 .... create a VPN (the interfaces are a side effect, but routing is exactlyt as if you have real wire between the endpoints).