《华为安全认证HCIE》学习笔记 | 域间转发策略设置

Posted 2021-07-08 COCOgsta

学习视频来源：华为安全认证HCIE

个人在学习的同时，也验证了视频中的实验部分，现将授课笔记和实验笔记整理下来。

网络拓扑

关键配置及验证

OKLABFW删除原有trust区域的接口，并将其放入untrust和dmz区域中

firewall zone trust
 undo add interface GigabitEthernet 0/0/1.2
 undo add interface GigabitEthernet 0/0/1.4
firewall zone untrust 
 add interface GigabitEthernet 0/0/1.2
firewall zone dmz 
 add interface GigabitEthernet 0/0/1.4

测试验证Inside无法ping通Outside

[Inside]ping 202.100.1.1
  PING 202.100.1.1: 56  data bytes, press CTRL_C to break
    Request time out
    Request time out
    Request time out
    Request time out
    Request time out
  --- 202.100.1.1 ping statistics ---
    5 packet(s) transmitted
    0 packet(s) received
    100.00% packet loss
[Inside]

OKLABFW修改域间策略

firewall packet-filter default permit interzone trust untrust directio
n outbound

查看域间策略规则修改情况

[OKLAB-FW]dis firewall packet-filter default all 
20:07:22  2021/06/28
Firewall default packet-filter action is: 
----------------------------------------------------------------------
  packet-filter in public:
    local -> trust : 
      inbound  : default: permit; || IPv6-acl: null
      outbound : default: permit; || IPv6-acl: null
    local -> untrust : 
      inbound  : default: deny; || IPv6-acl: null
      outbound : default: permit; || IPv6-acl: null
    local -> dmz : 
      inbound  : default: deny; || IPv6-acl: null
      outbound : default: permit; || IPv6-acl: null
    trust -> untrust : 
      inbound  : default: deny; || IPv6-acl: null
      outbound : default: permit; || IPv6-acl: null
    trust -> dmz : 
      inbound  : default: deny; || IPv6-acl: null
      outbound : default: deny; || IPv6-acl: null
    dmz -> untrust : 
      inbound  : default: deny; || IPv6-acl: null
      outbound : default: deny; || IPv6-acl: null
  packet-filter between VFW:
[OKLAB-FW]

验证Inside可以ping通Outside

​[Inside]ping 202.100.1.1
  PING 202.100.1.1: 56  data bytes, press CTRL_C to break
    Reply from 202.100.1.1: bytes=56 Sequence=1 ttl=254 time=80 ms
    Reply from 202.100.1.1: bytes=56 Sequence=2 ttl=254 time=80 ms
    Reply from 202.100.1.1: bytes=56 Sequence=3 ttl=254 time=90 ms
    Reply from 202.100.1.1: bytes=56 Sequence=4 ttl=254 time=100 ms
    Reply from 202.100.1.1: bytes=56 Sequence=5 ttl=254 time=130 ms
  --- 202.100.1.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 80/96/130 ms
[Inside]

恢复域间策略规则

firewall packet-filter default deny interzone trust untrust direction 
outbound 

OKLABFW配置域间详细转发策略

policy interzone trust untrust outbound
 policy create-mode auto-sort enable
 policy 5 
  action permit 
  policy service service-set icmp
  policy source 10.1.1.0 mask 24
  policy destination 202.100.1.0 mask 24

再次验证Inside可以ping通Outside

<Inside>ping 202.100.1.1
  PING 202.100.1.1: 56  data bytes, press CTRL_C to break
    Reply from 202.100.1.1: bytes=56 Sequence=1 ttl=254 time=110 ms
    Reply from 202.100.1.1: bytes=56 Sequence=2 ttl=254 time=80 ms
    Reply from 202.100.1.1: bytes=56 Sequence=3 ttl=254 time=110 ms
    Reply from 202.100.1.1: bytes=56 Sequence=4 ttl=254 time=90 ms
    Reply from 202.100.1.1: bytes=56 Sequence=5 ttl=254 time=110 ms

  --- 202.100.1.1 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 80/100/110 ms

<Inside>