我是防火墙新手。。。我需要我的信任区域来访问互联网，但问题是我无法实现。到目前为止，从信任区域，我能够 ping 不信任区域中的 IP，但我无法 ping 信任区域或 bgroup0 内的 IP。
我还可以使用信任区域内的 telnet 到不信任区域。
这是我的配置：
{
unset key protection enable
set clock timezone 0
set vrouter trust-vr sharable
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
unset auto-route-export
exit
set alg appleichat enable
unset alg appleichat re-assembly enable
set alg sctp enable
set auth-server "Local" id 0
set auth-server "Local" server-name "Local"
set auth default auth server "Local"
set auth radius accounting port 1646
set admin name "netscreen"
set admin password "I'm an idiot for including my password on a public site"
set admin auth web timeout 10
set admin auth dial-in timeout 3
set admin auth server "Local"
set admin format dos
set zone "Trust" vrouter "trust-vr"
set zone "Untrust" vrouter "trust-vr"
set zone "DMZ" vrouter "trust-vr"
set zone "VLAN" vrouter "trust-vr"
set zone "Untrust-Tun" vrouter "trust-vr"
set zone "Trust" tcp-rst
set zone "Untrust" block
unset zone "Untrust" tcp-rst
set zone "MGT" block
unset zone "V1-Trust" tcp-rst
unset zone "V1-Untrust" tcp-rst
set zone "DMZ" tcp-rst
unset zone "V1-DMZ" tcp-rst
unset zone "VLAN" tcp-rst
set zone "Untrust" screen tear-drop
set zone "Untrust" screen syn-flood
set zone "Untrust" screen ping-death
set zone "Untrust" screen ip-filter-src
set zone "Untrust" screen land
set zone "V1-Untrust" screen tear-drop
set zone "V1-Untrust" screen syn-flood
set zone "V1-Untrust" screen ping-death
set zone "V1-Untrust" screen ip-filter-src
set zone "V1-Untrust" screen land
set interface "ethernet0/0" zone "Untrust"
set interface "ethernet0/1" zone "DMZ"
set interface "bgroup0" zone "Trust"
set interface bgroup0 port ethernet0/2
set interface bgroup0 port ethernet0/3
set interface bgroup0 port ethernet0/4
set interface bgroup0 port ethernet0/5
set interface bgroup0 port ethernet0/6
unset interface vlan1 ip
set interface ethernet0/0 ip 192.168.200.225/24
set interface ethernet0/0 route
set interface bgroup0 ip 192.168.201.1/24
set interface bgroup0 nat
set interface ethernet0/0 gateway 192.168.200.1
set interface "ethernet0/0" pmtu ipv4
set interface "bgroup0" pmtu ipv4
unset interface vlan1 bypass-others-ipsec
unset interface vlan1 bypass-non-ip
set interface ethernet0/0 ip manageable
set interface bgroup0 ip manageable
set interface ethernet0/0 manage ping
set interface ethernet0/0 manage ssh
set interface ethernet0/0 manage telnet
set interface ethernet0/0 manage snmp
set interface ethernet0/0 manage ssl
set interface ethernet0/0 manage web
set interface ethernet0/0 manage ident-reset
set interface bgroup0 manage mtrace
set interface bgroup0 dhcp server service
set interface bgroup0 dhcp server auto
set interface bgroup0 dhcp server ip 192.168.201.10 to 192.168.201.20
unset interface bgroup0 dhcp server config next-server-ip
set interface "serial0/0" modem settings "USR" init "AT&F"
set interface "serial0/0" modem settings "USR" active
set interface "serial0/0" modem speed 115200
set interface "serial0/0" modem retry 3
set interface "serial0/0" modem interval 10
set interface "serial0/0" modem idle-time 10
set flow tcp-mss
unset flow tcp-syn-check
unset flow tcp-syn-bit-check
set flow reverse-route clear-text prefer
set flow reverse-route tunnel always
set pki authority default scep mode "auto"
set pki x509 default cert-path partial
set crypto-policy
exit
set ike respond-bad-spi 1
set ike ikev2 ike-sa-soft-lifetime 60
unset ike ikeid-enumeration
unset ike dos-protection
unset ipsec access-session enable
set ipsec access-session maximum 5000
set ipsec access-session upper-threshold 0
set ipsec access-session lower-threshold 0
set ipsec access-session dead-p2-sa-timeout 0
unset ipsec access-session log-error
unset ipsec access-session info-exch-connected
unset ipsec access-session use-error-log
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
exit
set url protocol websense
exit
set policy id 1 from "Trust" to "Untrust" "Any" "Any" "ANY" permit
set policy id 1
exit
set policy id 2 from "Untrust" to "Trust" "Any" "Any" "ANY" permit
set policy id 2
exit
set policy id 3 from "Trust" to "Trust" "Any" "Any" "ANY" permit
set policy id 3
exit
set nsmgmt bulkcli reboot-timeout 60
set ssh version v2
set config lock timeout 5
unset license-key auto-update
set telnet client enable
set snmp port listen 161
set snmp port trap 162
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
unset add-default-route
exit
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
exit
}
答案1
第一件事更像是一个建议，而不是修复——不要将接口置于 NAT 模式。转到接口并将其置于路由模式。然后转到信任 -> 不信任策略页面，选择您的任何/任何/任何策略，然后单击高级，并将规则置于源 Nat 模式。当您单击应用并保存时，规则的图标应该变为蓝色。（为什么这样做？因为它在策略页面上清楚地表明正在发生 NAT。如果您愿意，它还为您提供了通过防火墙进行非 NAT 的灵活性。）
第二。您的“不信任”地址是 192.168.200.x/24——看起来像是保留 IP。您能 ping 防火墙的不信任网关 192.168.200.1 吗？您确定 /24 是正确的掩码大小吗？您能在“不信任”网络上使用这些参数设置系统并连接到互联网吗？您能找出默认网关后的下一跳 IP 是什么，然后找到它吗？
第三。您似乎没有将 DNS 设置为 DHCP 选项，因此您的 DHCP 客户端没有获得 DNS 服务器。这是故意的吗？
第四。除非来自“不信任”侧的 IP 将发起与信任侧的连接，否则您不需要策略 2。使用策略 1，流回信任侧的流量被暗示为关联流量。
第五。除非您有多个标记为信任的安全区域（但您没有），否则您不需要信任 -> 信任规则。
第六，您似乎通过不信任接口进行所有管理。这也许是您想要的，但在我看来，这是倒退，允许不信任网络访问您的管理。