Wednesday , September 20 2017

from Huawei CLI – rollback configuration

Well known feature from JunOS, now implemented by Huawei in Cloud Engines switches like CE12800, CE7800, CE6800 and CE5800. This feature will be implemented in NE routers as well, starting from V8R6 software version.

We have opportunity to choose wheter changes can be saved automatically or must wait for administrator’s confirmation:

system-view

In this case, the configuration takes effect after you run the commit command (two-phase validation mode).

system-view immediately

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NAT server on Huawei USG5500

The last article dealt with outbound NAT. Let’s focus today on NAT server. NAT server enables private network servers to provide services for external networks with public IP addresses. In this lab, our enterprise provides FTP services for external users.

We can use the topology from the last post:

In our case AR router works as FTP server:

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outbound NAT on Huawei USG5500

What does it mean outbound NAT?

Outbound NAT translates the source IP addresses of packets sent from a high-priority security zone to a low-priority one.

I allowed myself to post a flowchart of configuring intranet users to access extranet through NAT (from Huawei documentation):

It easily lets us to choose a suitable way of configuring outbound NAT. In this lab I will try to do a review of these methods.

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cheat sheet – information center

I am often asked how to find syslog commands on Huawei devices. As one is familiar with Cisco‘s devices, he is looking for “logging” command in Huawei’s VRP. And this is the main problem. Remember that equivalent of Cisco’s logging is info-center on Huawei.

The information center functions as an information hub. The information center manages most output information. Output information is classified and then effectively filtered. Together with debugging commands and the SNMP module, the information center provides powerful support for the network administrator to monitor the operation of devices and locate faults.

Generally speaking, the information center distributes three types of information with eight severity levels to ten information channels, and then outputs that information in different directions.

Today I decided to create a simple cheat sheet, describing Huawei’s information center:

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https—>webUI—>Huawei Secospace USG6300

As a graphical user interface is useless in case of routers and switches, it looks useful when configuring a firewall. Of course it is my point of view. I do not go into what is better for you. I like using CLI but, sometimes, it is worth to simplify your daily routine. The first step is to configure HTTPS access to webUI of USG6300. This is what we will focus today.

Well known topology from the last post:

Topology_USG_access

Configure IP address of firewall’s interface and add it to trust zone:

[USG6300]interface GigabitEthernet 0/0/7
[USG6300-GigabitEthernet0/0/7]ip address 172.16.1.1 24

[USG6300]firewall zone trust
[USG6300-zone-trust]add interface GigabitEthernet 0/0/7

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