Jails and loopback interfaces

[No at SPAM at mgEDV.net]

well, i got your ideas, btw, could someone please clarify this for me:

i configured a separate interface for the jailed dns-server:

ifconfig lo5 plumb
ifconfig lo5 10.10.5.1 netmask 255.255.255.0 up

the nameserver listenes on 10.10.5.1#55053 (everything's fine there).

although the dns-server is bound to the specific ip-address, which
again is bound to a separate interface, i do not see just one packet
with tcpdump on this interface. even the loopback interface lo0 does
not show anything.

instead, the packets are generated from my lan-interface myk0, which
has a route to the forwarder.

why are the packets generated on an interface, that the server is not
bound to and there is no redirect for?