Black Box LR11xx Series Router Configurations Guide

6.1.6 Secondary Addressing – POP Only

Secondary addressing approaches rely on configuring the POP router with a secondary Ethernet address for each remote site. The POP-only approach uses secondary addresses at the POP while the remote router utilizes only a primary address.

Table 8 POP Only Secondary Addressing

POP Router

e0:

200.1.1.1/30 primary

 

 

199.1.1.1/29 secondary

 

 

199.1.1.9/29 secondary

 

 

199.1.1.17/29 secondary

POP Black Box

e0:

200.1.1.2/30

 

wan1:

10.1.1.1/24

 

wan2:

10.1.2.1/24

 

wan3:

10.1.3.1/24

Black Box 1

e0:

199.1.1.2/29

 

wan1:

10.1.1.2/24

Router 1

e0:

199.1.1.3/29

Black Box 2

e0:

199.1.1.10/29

 

wan1:

10.1.2.2/24

Router 2

e0:

199.1.1.11/29

Router/DSU

s0:

199.1.1.18/29

6.1.7 Secondary Addressing – 30 Bit

This approach relies on configuring the POP router with a secondary Ethernet address for each remote site. The remote router is also configured with a secondary address in that same subnet. The 30-bit approach uses reserved addresses for bundle addressing. The router primary and the directly connected Black Box reside in a different 30-bit subnet.

Table 9 30-Bit Secondary Addressing

POP Router

e0:

200.1.1.1/30 primary

 

 

199.1.1.1/30 secondary

 

 

199.1.1.5/30 secondary

 

 

199.1.1.9/30 secondary

POP Black Box

e0:

200.1.1.1/30

 

wan1:

10.1.1.1/30

 

wan2:

10.1.1.5/30

 

wan3:

10.1.1.9/30

Black Box 1

e0:

201.1.1.2/30

 

wan1:

10.1.1.2/30

Router 1

e0:

201.1.1.1/30 primary

 

 

199.1.1.2/30 secondary

Black Box 2

e0:

202.1.1.2/30

 

wan1:

10.1.1.6/30

Router 2

e0:

202.1.1.1/30 primary

 

 

199.1.1.6/30 secondary

Router/DSU

s0:

199.1.1.10/30

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Black Box LR1112A-T1/E1, LR1114A-T1/E1, LR1104A-T1/E1 manual Secondary Addressing POP Only, Secondary Addressing 30 Bit