How can nginx supports more than 64511 concurrent backend connections?

[diogin]

Hello nginx fans,

I'm using nginx (with ngx_redis2 module) as a redis client, and would
like to establish more than 64511 keep alive connections with a redis
instance. The local port range of Linux is limited to 64511, so I'd like
to set up multiple ip addresses for nginx machine, but I don't know how
to tell nginx to bind local port on multiple ip addresses. Anyone has
the experience? Thanks in advance.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,226708,226708#msg-226708