Lantronix XPort AR - Manual (Page 68)

9: Services Settings
XPort AR User Guide 68
The XPort AR also supports authentication scheme of “None” when no authentication is required
during link negotiation.
Since the XPort AR does not support Network Address and Port Translation (NAPT), static routing
table entries must be added to the serial-side and network-side devices (both of which are external
devices).
Use the XPort AR Web Manager or CLI to configure a network link using PPP over a serial line.
Turn off Connect Mode, Accept Mode, and Command mode before enabling PPP. The XPort AR
acts as the server side of the PPP link; it can require authentication and assign an IP address to
the peer. Upon PPP configuration, IP packets are routed between Ethernet and PPP interfaces.
The XPort AR does not perform network address translation (NAT) between the serial-side
network interface and the Ethernet/WLAN network interface. Therefore, to pass packets through
the XPort AR, a static route must be configured on both the PPP Peer device and the remote
device it wishes to communicate with. The static route in the PPP Peer device must use the PPP
Local IP Address as its gateway, and the static route in the remote device must use the Ethernet/
WLAN IP Address of the XPort AR as its gateway.
To configure PPP, perform the following steps.
1. Click PPP on the Main Menu. Figure 9-2 shows the page that displays.
Figure 9-2 PPP Configuration Web Page