User's Manual
HF-LPB Low Power WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd
www.hi-flying.com
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2.4. Encryption
Encryption is a method of scrambling a message that makes it unreadable to unwanted parties,
adding a degree of secure communications. There are different protocols for providing encryption, and
the HF-LPB module supports following:
WEP
WPA-PSK/TKIP
WPA-PSK/AES
WPA2-PSK/TKIP
WPA2-PSK/AES
2.5. Network Protocal
HF-LPB includes a fully IPv4 and IPv6 capable stack supporting TCP and UDP connection.Following
table shows the key features of the HF-LPB module IP stack, which including support for DHCP,
multicast, and ARP.
The Frame size limits are (including IP headers):
z Tranmit
9 TCP/UDP/ICMP (v4): 1576
9 ICMP (v6): 1576
9 UCP/UDP (v6): 1220
z Receive
9 TCP/UDP (v4): 1516
9 TCP/UDP (v6): 1496
9 ICMPv4 and ICMPv6: 5000
Table 5 HF-LPB IP Stack Features
Feature Support
ARP
Supported
Forwarding Supported
Fragmentation/Reassembly Planned
IPv4/v6 Header Processing Supported
UDP/TCP Socket Support Supported
DHCP v4
Supported
Neighbor Discovery
Supported
Broadcast/Multicast Supported
Path MTU Discovery Supported
Address Auto-Configuration Supported
Multicast Planned
TCP Zero Copy Feature Supported