SecPath F100-S-G 不能连接internet

PC连接到G0/0-3口可获取IP地址，ping通G0/4，但是无法连接internet，请高人指点，是否NAT设置有问题。谢谢。下附配置文件，

# undo voice vlan mac-address 00e0-bb00-0000

 # nat address-group 11 122.204.206.170 122.204.206.170 

# domain default enable system 

# port-security enable

# session synchronization enable

 # password-recovery enable 

# acl number 2018 rule 0 permit source 192.168.0.0 0.0.7.255 rule 5 permit source 172.16.16.0 0.0.3.255 

# vlan 1 # vlan 2

 # domain system access-limit disable state active idle-cut disable self-service-url disable 

# pki domain default crl check disable

dhcp server ip-pool bangong 

 network 192.168.0.0 mask 255.255.248.0 

 gateway-list 192.168.0.1 dns-list 202.101.172.35 

 expired unlimited 

# dhcp server ip-pool wifi network 172.16.16.0 mask 255.255.252.0 gateway-list 172.16.16.1 dns-list 202.101.172.35 expired unlimited 

# user-group system group-attribute allow-guest

 # local-user admin password cipher $c$3$7+J7tiz5VyWIjj+hTa4XH1NAmiw1KFaF authorization-attribute level 3 service-type telnet service-type web local-user super password cipher $c$3$S+wP58mkgRkatsXu/wgq17QmJ5X0S88FDexl authorization-attribute level 3 service-type web # cwmp undo cwmp enable

 # interface NULL0 

# interface Vlan-interface1 ip address 192.168.0.1 255.255.248.0

 # interface Vlan-interface2 ip address 172.16.16.1 255.255.252.0 

# interface GigabitEthernet0/4 port link-mode route nat outbound 2018 address-group 11 ip address 122.204.206.170 255.255.255.252 undo dhcp select server global-pool # interface GigabitEthernet0/0 port link-mode bridge

 # interface GigabitEthernet0/1 port link-mode bridge # interface GigabitEthernet0/2 port link-mode bridge

 # interface GigabitEthernet0/3 port link-mode bridge port access vlan 2

vd Root id 1

 # zone name Management id 0 

 priority 100

 import interface Vlan-interface1

 import interface Vlan-interface2

zone name Local id 1 priority 100 zone name Trust id 2 priority 85 zone name DMZ id 3 priority 50 zone name Untrust id 4 priority 5 switchto vd Root zone name Management id 0 ip virtual-reassembly zone name Local id 1 ip virtual-reassembly zone name Trust id 2 ip virtual-reassembly zone name DMZ id 3 ip virtual-reassembly zone name Untrust id 4 ip virtual-reassembly 

# ip route-static 0.0.0.0 0.0.0.0 GigabitEthernet0/4 122.204.170.169 preference 1 # dhcp enable

外网配置静态IP接在0/4接口，

内网0/0至0/2口为同一VLAN1，192.168.0.1/21     

内网0/3接口为VLAN2，172.16.16.1/22