On 10/31/2014 2:18 PM, Andrey V. Elsukov wrote:
On 31.10.2014 12:50, Hooman Fazaeli wrote:
Hi,
I my setup, I use a fwd rule to forward all udp traffic to my local proxy:
ipfw add 10 fwd localhost,7000 udp from any to any recv em1
The proxy needs to know the original destination address of forwarded
datagrams, but
there seems to be no way to obtain that address.
Using recvmsg with IP_RECVDSTADDR does not help because it returns
next-hop address
instead of original destination. This is because udp_input() overwrites
packet's destination
with next-hop address before doing ip_savecontrol.
Hi,
udp_input() doesn't overwrite destination address. Probably you have NAT
that does this.
There is no NAT stuff.
I checked that on 8.4 source:
http://fxr.watson.org/fxr/source/netinet/udp_usrreq.c?v=FREEBSD8#L461
--
Best regards.
Hooman Fazaeli
_______________________________________________
freebsd-net@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
