[help] adsl with fixed ip's + natd

Guilherme Oliveira guilherme at nortenet.pt
Thu Jun 12 10:36:05 PDT 2003


Hi !

I'm having some problems configuring my DMZ with adsl fixes ip's.

My ISP give to me 1 ip for the connection fase (213.13.123.140) and others ip
for my netroking needs (213.13.121.72/29)
My modem connects very well (looking ppp.log), I was pinging once but didn't
nat.
Now it does nothing !

dmesg shows:
natd: tun0: Cannot get interface address

pinging some valid ip from internet:
ping: no route to host

netstat -nr

Destination       Gateway     Flags Refs Use Netif Expire
127.0.0.1         127.0.0.1   UH    0    0   lo0
192.168.0         link#2      UC    0    0   xl1
192.168.1         link#3      UC    0    0   xl2
213.13.121.74/32  link#1      UC    0    0   xl3

ppp.conf:
default:
  set device PPPoE:xl0
  set speed sync
  set mru 1492
  set mtu 1492
  set ctsrts off
  enable lqr
  set log phase tun
  set ifaddr 213.13.123.140 213.13.121.73 255.255.255.248
  add default HISADDR
  enable dns
isp:
  set authname USERNAME
  set authkey PASSWORD


rc.conf:
firewall_enable="YES"
firewall_type="open"
natd_enable="YES"
natd_interface="tun0"
ifconfig_xl0="up"
ifconfig_xl1="inet 192.168.0.1 netmask 255.255.255.0" # desktop network
ifconfig_xl2="inet 192.168.1.1 netmask 255.255.255.0" # server network
ifconfig_xl0_alias0="inet 213.13.121.74 netmask 255.255.255.255" # for port
forward to 192.168.1.2
ifconfig_xl0_alias1="inet 213.13.121.75 netmask 255.255.255.255" # for port
forward to 192.168.1.3
ppp_enable="YES"
ppp_mode="ddial"
ppp_nat="NO"
ppp_profile="isp"
defaultrouter="NO"
static_routes=""
gateway_enable="YES"
router_enable="NO"


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