PF telnet redirect not working

["Joel Gudknecht" <joel.gudknecht@honeywell.com>]

I am trying to setup a box that redirects telnet requests
from one interface out a different one. My current
config is as follows;

more /etc/pf.conf
pass in all
pass out all

more /etc/nat.conf
rdr on xl1 proto tcp from any to any port 23 -> 192.168.100.4 port 23

The box is setup with 2 interfaces, xl0 & xl1.
xl0 = 192.168.100.20
xl1 = 206.8.19.228

What I want to do is be able to telnet to 206.8.19.228 and have openbsd transparently redirect me to 192.168.100.4 as shown in the nat.conf. It appears like it's getting to the 192.168.100.4 because a pfctl -ss reports this, TCP  192.168.100.4:23 <- 206.8.19.228:23 <- 206.8.19.8:1360       CLOSED:SYN_SENT.

Any ideas on what could possibly be going on here?

Thanks very much,
Joel