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4 Configurations on Web Interface
DAG1000-1S/2S/4S User Manual
Copyright©2011-2017 Dinstar
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Figure 4-18 Filter IP Address, Mac Address and Domain Name
4.4.11
ARP
ARP is address resolution protocol, which helps to get the MAC address of a device through
its IP address. Under TCP/IP network environment, each host is assigned with a 32-bit IP
address, but MAC address needs to be known for message transmission in the physical
network. In the above case, ARP can help convert IP address into MAC address.
Figure 4-19 ARP
4.5 SIP Server
SIP server is the main component of VoIP network and is responsible for establishing all
SIP calls. SIP server is also called SIP proxy server or register server. Both IPPBX and
softswitch can act as the role of SIP server.