Chapter 29 PPPoE
GS2210 Series User’s Guide
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defined in t he DSL For um Wor king Text ( WT) - 101. The default access node ident ifier is t he host
nam e of t he PPPoE int er m ediat e agent and t he et h indicat es “ Et her net ”.
29.1.2.3 Port State
Ever y por t is eit her a t r ust ed por t or an unt r ust ed por t for t he PPPoE int er m ediat e agent . This
set t ing is independent of t he t r ust ed/ unt r ust ed set t ing for DHCP snooping or ARP inspect ion. You
can also specify t he agent sub- opt ions ( cir cuit I D and r em ot e I D) t hat t he Sw it ch adds t o PADI and
PADR packet s fr om PPPoE client s.
Tr ust ed por t s ar e connect ed t o PPPoE ser ver s.
•
I f a PADO ( PPPoE Act ive Discover y Offer ) , PADS ( PPPoE Act ive Discover y Session- confir m at ion) ,
or PADT ( PPPoE Act ive Discover y Ter m inat e) packet is sent fr om a PPPoE ser ver and r eceived on
a t r ust ed por t , t he Sw it ch for war ds it t o all ot her por t s.
•
I f a PADI or PADR packet is sent fr om a PPPoE client but r eceived on a t r ust ed por t , t he Sw it ch
for wards it t o ot her t r ust ed por t ( s) .
Not e: The Sw it ch w ill dr op all PPPoE discover y packet s if you enable t he PPPoE
int er m ediat e agent and t her e ar e no t r ust ed por t s.
Unt r ust ed por t s are connect ed t o subscr iber s.
•
I f a PADI , PADR, or PADT packet is sent fr om a PPPoE client and r eceived on an unt r ust ed por t ,
t he Swit ch adds a vendor- specific t ag t o t he packet and t hen for war ds it t o t he t r ust ed por t ( s) .
•
The Sw it ch discar ds PADO and PADS packet s w hich are sent fr om a PPPoE ser ver but r eceived on
an unt r ust ed por t .
29.2 PPPoE Screen
Use t his scr een t o configur e t he PPPoE I nt er m ediat e Agent on t he Swit ch.
Click Adv a n ce d Applica t ion > PPPoE in t he navigat ion panel t o display t he scr een as show n.
Click Click H e r e t o go t o t he I n t e r m e dia t e Age n t scr een.
Figure 186
Advanced Applicat ion > PPPoE I nt er m ediat e Agent
Table 124
PPPoE I A Cir cuit I D Sub- opt ion For m at : Defined in WT- 101
SubOpt
Lengt h
Value
0x 01
( 1 by t e)
N
( 1
by t e)
Access
Node
I dent ifier
( 20 byt e)
Space
( 1
byt e)
et h
( 3
by t e)
Space
( 1
by t e)
Slot
I D
( 1
by t e)
/
( 1
by t e)
Por t No
( 2
by t e)
:
( 1
by t e)
VLAN
I D
( 4
by t es)
