Very Computer

Exchange Server ip: 192.168.128.20
Static external IP:  200.20.5.3
NIC rl0  IP:200.20.5.2
Method 1:
[natd.conf]
natd -redirect_address 192.168.128.20  200.20.5.3 -alias_address 200.20.5.2

Method 2:
[natd.conf]
natd -redirect_port tcp 192.168.128.20:110 200.20.5.3:110  -interface rl0

Still not work !!

[rc.conf]
ifconfig_fxp0="inet 192.168.128.12  netmask 255.255.255.0"
ifconfig_rl0="inet 200.20.5.2 netmask 255.255.255.248"
ifconfig_rl0_alias0="inet 200.20.5.3 netmask 255.255.255.248"
#
hostname="dns.abc.com.tw"
gateway_enable="YES"
defaultrouter="200.20.5.1"
#
sendmail_enable="NO"
#
# router_enable="YES"
 firewall_enable="YES"
 natd_enable="YES"
 natd_interface="rl0"

[rc.firewall]
/sbin/ipfw -f flush
/sbin/ipfw add 60000 divert natd all from any to any via rl0
/sbin/ipfw add 61000 pass all from any to any

http://coombs.anu.edu.au/~avalon/

Quote:> I'm running FreeBSD 3.4, use ADSL  connect to ISP,
> I'm configuring NAT, and that all  packets from internal network can
travell
> in and out through the BSD.
> Even internal Exchange Server 5.5 can send and receive email, But I can
not
> read email from other external
> computer. Therefore, I want to use the method of mapping ip address
(Static
> NAT).
> But it seems not work , Anybody can help me?

> Exchange Server ip: 192.168.128.20
> Static external IP:  200.20.5.3
> NIC rl0  IP:200.20.5.2
> Method 1:
> [natd.conf]
> natd -redirect_address 192.168.128.20  200.20.5.3 -alias_address
200.20.5.2

> Method 2:
> [natd.conf]
> natd -redirect_port tcp 192.168.128.20:110 200.20.5.3:110  -interface rl0

> Still not work !!

> [rc.conf]
> ifconfig_fxp0="inet 192.168.128.12  netmask 255.255.255.0"
> ifconfig_rl0="inet 200.20.5.2 netmask 255.255.255.248"
> ifconfig_rl0_alias0="inet 200.20.5.3 netmask 255.255.255.248"
> #
> hostname="dns.abc.com.tw"
> gateway_enable="YES"
> defaultrouter="200.20.5.1"
> #
> sendmail_enable="NO"
> #
> # router_enable="YES"
>  firewall_enable="YES"
>  natd_enable="YES"
>  natd_interface="rl0"

> [rc.firewall]
> /sbin/ipfw -f flush
> /sbin/ipfw add 60000 divert natd all from any to any via rl0
> /sbin/ipfw add 61000 pass all from any to any

Quote:>I'm running FreeBSD 3.4, use ADSL  connect to ISP,
>I'm configuring NAT, and that all  packets from internal network can
travell
>in and out through the BSD.
>Even internal Exchange Server 5.5 can send and receive email, But I can not
>read email from other external
>computer. Therefore, I want to use the method of mapping ip address
(Static
>NAT).
>But it seems not work , Anybody can help me?

>Exchange Server ip: 192.168.128.20
>Static external IP:  200.20.5.3
>NIC rl0  IP:200.20.5.2
>Method 1:
>[natd.conf]
>natd -redirect_address 192.168.128.20  200.20.5.3 -alias_address 200.20.5.2

>Method 2:
>[natd.conf]
>natd -redirect_port tcp 192.168.128.20:110 200.20.5.3:110  -interface rl0

>Still not work !!

>[rc.conf]
>ifconfig_fxp0="inet 192.168.128.12  netmask 255.255.255.0"
>ifconfig_rl0="inet 200.20.5.2 netmask 255.255.255.248"
>ifconfig_rl0_alias0="inet 200.20.5.3 netmask 255.255.255.248"
>#
>hostname="dns.abc.com.tw"
>gateway_enable="YES"
>defaultrouter="200.20.5.1"
>#
>sendmail_enable="NO"
>#
># router_enable="YES"
> firewall_enable="YES"
> natd_enable="YES"
> natd_interface="rl0"

>[rc.firewall]
>/sbin/ipfw -f flush
>/sbin/ipfw add 60000 divert natd all from any to any via rl0
>/sbin/ipfw add 61000 pass all from any to any

I dont fully understand your lines about 'natd.conf'
I think you should give your natd - parameters either in rc.conf via:

natd_flags="-redirect_port tcp 192.168.128.20:110 110  -interface rl0"

or specify

natd_flags="-f /usr/local/etc/natd.conf"
and put:

redirect_port tcp 192.168.128.20:110 110
interface rl0

in /usr/local/etc/natd.conf

I dont think that natd uses a default for an natd.conf file (but maybe I am
wrong about this)

hope this helps
Thomas

Quote:>>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<<

I believe your natd.conf should look more like this:

## Begin Natd.conf
##
redirect_port tcp 192.168.128.20:110 110
redirect_port tcp 200.20.5.3:110 110
##
## end natd.conf