RuggedRouter User Guide
The last 2-bytes of the VLAN tag contain the following information: the first 3-bits
are a User Priority Field that may be used to assign a priority level to the Ethernet
frame. The next 1-bit is a Canonical Format Indicator (CFI) used in Ethernet frames
to indicate the presence of a Routing Information Field (RIF). The last 12-bits are the
VLAN Identifier (VID) which uniquely identifies the VLAN to which the Ethernet
frame belongs.
RuggedRo uter Functi ons Support ing VLANs
Functions Supported
?
Comments
Static Route and Default
Route
Y
Static Multicast Routing Y
End To End backup Y
PPPoE N
Shorewall Firewall Y
IPSec N Netkey (policy based VPNs) supports VLAN
Klips (route based VLANs) do not support
VLAN
VRRP Y
Traffic Prioritization Y
Dynamic Routing Both OSPF and RIP support VLAN
GRE Tunnel Y
DHCP Server Y
PPPoE On Native Ether net Interfaces Fundamentals The RuggedRouter supports PPPoE (Point-to-Point Protocol Over Ethernet) over both
external modems (described here) and internal interfaces (described in the chapter
“PPPOE On ADSL”). The PPPOE On ADSL chapter contains more useful
information on PPPOE Authentication, Addresses, DNS Servers and MTU Issues.
Only one PPPoE interface can be created on each Ethernet Interface. Each PPPoE
interface name is assigned internally. The name is “pppX”, where X is 10 plus the
native Ethernet interface the PPPoE is created upon (e.g. a PPPoE on eth1 is ppp11).
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