VERSION: uptables-1.2.1.a I Type: iptables -t nat -A OUTPUT -p udp -d 192.168.1.2 --dport 514 -j DNAT --to 127.0.0.1:1514 It replies: iptables: Invalid argument The traffic is to ORIGINATE from a local process (this is 192.168.1.46), heading out to a ficticious 192.168.1.2, and DNAT'd to localport 1514 syslogd reuses to log to a port other than 514, but using DNAT as a kludge should work. I've tried a range of options, and got REDIRECT to almost work, but after the first packet it gave connection refused. NAT-HOWTO.txt 6.3.7 says must be OUTPUT and 127 I am using socat http://www.dest-unreach.org/socat/ to test socat UDP4-LISTEN:1514 - # server socat - UDP4:127.0.0.1:1514 # client regards -- Graham Information-Cascade -at- ntlworld.com