Gotting HG G-76343, Руководство пользователя

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Device Description HG G - 76343/4/5 | English, Revision 05 | Date: 23.02.2022
58 Chapter 6 – Bridge Modes
Disadvantages of the NAT mode:
1. Access to the LAN clients via WLAN is possible only on the ports defined in the
NAT rules.
2. If LAN clients offer server services on the same port numbers (e.g. FTP), the
user must define port forwarding rules in a way that these services are
addressed on different ports for each LAN client.
The internal interfaces of the HG G - 76343/4/5 are e.g.:
1. Serial port (default Port 8888)
2. Printer server (default Port 9100)
3. HG G - 76343/4/5 Webserver (default Port 80, may be changed under Configura -
tion –> Admin –> Webserver Port, s. 5.3.1 on page 44)
4. Relay
5. Aux-Input (optional)
6. MC-Config (UDP+TCP Port 17784 + 17785)
The device lists the ports in use under Statistics –> Network (see section 5.4.2 on
page 51).
6.3 Level 2 Pseudo Bridge Mode
In Level 2 pseudo bridge mode, all LAN clients communicate with their own IP ad -
dresses via the WLAN. For this purpose the MAC address of the WLAN card of the
HG G
- 76343/4/5 is used for all LAN clients.
This procedure can lead to problems with some WLAN infrastructures if any WLAN
controllers answer ARP requests from the stationary network side using a WLAN cli
-
ent list (ARP caching). If these WLAN controllers only allow one entry MAC

IP,
access to the LAN clients from the stationary network is not guaranteed, because
ARP requests may not be answered.
Make sure that there are no collisions between the port numbers and the internal
interfaces of the HG G
- 76343/4/5.
Deactivate interfaces that are not needed.
Prerequisite for this mode is that the IP addresses of all LAN clients and also the IP
of the HG G
- 76343/4/5 are in the same network.
This problem is usually to be expected in controller-based WLAN infrastructures of
CISCO®.