Network Connections
47
Change MAC address
On rare occasions it may be necessary to change the Ethernet hardware or
MAC
Address
of your SnapGear appliance. The MAC address is a globally unique address
and is specific to a single SnapGear appliance. It is set by the manufacturer and should
not normally be changed. However, you may need to change it if your ISP has
configured your ADSL or cable modem to only communicate with a device with a known
MAC address. On SME570 and SME575, you may also change the MAC address of the
DMZ port.
QoS Traffic Shaping
Traffic shaping provides a level of control over the relative performance of various types
of IP traffic. The traffic shaping feature of your SnapGear appliance allows you to
allocate
High
,
Medium
, or
Low
priority to the following services: domain (tcp), domain
(udp), ftp, ftp-data, http, https, imap, irc, nntp, ntp, pop3, smtp, ssh, and telnet.
This advanced feature is provided for expert users to fine tune their networks. The
Auto
Traffic Shaper
uses a set of inbuilt traffic shaping rules to attempt to ensure low latency
on interactive connections, while maintaining fast throughput on bulk transfers. The
Upstream
and
Downstream Speed
should. If you have a PPTP or PPPoE connection
to the Internet, enter approximately 80 – 90% of the speed that the ISP supplied to
account for protocol overheads.
