Zone Configuration to Redirect SMTP

[I/P/B/ Ertan Gönülal]

Hi all,

i have a problem witch a Zone configuration

I have a zone for vlan and a Debian Vserver with exim4

The vserver has an internal IP 172.16.xx.xx

The Mainsystem where the vserver runs has an IP 192.xxx.xxx
When i write the Rule:

REDIRECT_SMTP="tcp smtp 0.0.0.0/0=>192.xxx.xxx.xxx/32 172.16.xxx.xxx smtp"

I become the Error:

iptables -t nat -A PREROUTING_NAT_ZONENAME -p tcp --dport smtp -d
192.xxx.xxx.xxx/32 -j DNAT --to-destination 172.16.xxx.xxx:25 465

The Port 465 is for SSMTP but i dont want to use this.

If i change the rule and give the Port 25 and not the name smtp anything
work correctly.

REDIRECT_SMTP="tcp 25 0.0.0.0/0=>192.xxx.xxx.xxx/32 172.16.xxx.xxx 25"

The /etc/services includes the correct description:

smtp            25/tcp          mail

I can use it (smtp) in any other zones but in this, it fails.


Thanks

Ertan