CAMBIUM NETWORKS
026v003
220
Attribute
Meaning
ARP-NAT
ARP-NAT or Wireless Client Bridging is a special MAC address
translation mechanism. It is similar to NAT for IP networks, except it
works one layer deeper. Instead of translating IP network addresses,
the ePMP device translates between the MAC hardware addresses
on both sides of the interface. If a device on the wired side of the
router makes an ARP request for the MAC address of an IP on the
wireless side, then the ePMP device forwards the request as if it
came from the ePMP device. When the response comes back, it
translates the address again. Instead of passing back the real MAC
(which resides on the wireless network), the ePMP device gives its
own wired MAC address. Then, when it receives frames for IP
addresses on the wireless network, it forwards them through
(conducted on both sides of the bridge).
ARP-NAT is configured on the SM in section Configuration >
Network > Advanced.
Note
PPPoE Client on PCs connected to the SM is not supported and
throughput decreases when ARP-NAT feature is enabled.
Spanning Tree Protocol
Disabled: When disabled, Spanning Tree Protocol (802.1d)
functionality is disabled at the SM.
Enabled: When enabled, Spanning Tree Protocol (802.1d)
functionality is enabled at the SM, allowing for the prevention of
Ethernet bridge loops.
DHCP Server Below SM
Disabled: This blocks DHCP servers connected to the SM’s LAN side
from handing out IP addresses to DHCP clients above the SM
(wireless side).
Enabled: This allows DHCP servers connected to the SM’s LAN side
to assign IP addresses to DHCP clients above the SM (wireless side).
This configuration is typical in PTP links.
NAT Helper For SIP
Disabled: When disabled, the SM does not perform any deep packet
manipulation on the SIP request packet from a SIP Client.
Enabled: When enabled, the SM in NAT mode replaces the Source
IP within the SIP request to the Wireless IP of the SM. Please note
that this translation is often times handled by the SIP server so this
option may not always be needed.
Содержание ePMP 1000
Страница 198: ...CAMBIUM NETWORKS 026v003 198 Figure 61 SM Radio page Standard WiFi mode...
Страница 230: ...CAMBIUM NETWORKS 026v003 230 Figure 66 SM Network page Router mode...
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Страница 468: ...CAMBIUM NETWORKS 026v003 468 Figure 87 FCC and IC certifications on 2 4 GHz product labels...