Black Box LR11xx Series Router Configurations Guide
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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

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: 200.1.1.1/3 0 primary
199.1.1.1/29 secondary
199.1.1.9/29 secondary
199.1.1.17/29 secondary
POP Black Box e0:
wan1:
wan2:
wan3:
200.1.1.2/30
10.1.1.1/24
10.1.2.1/24
10.1.3.1/24
Black Box 1 e0:
wan1: 199.1.1.2/29
10.1.1.2/24
Router 1 e0: 199.1.1.3/29
Black Box 2 e0:
wan1: 199.1.1.10/29
10.1.2.2/24
Router 2 e0: 199.1.1.11/29
Router/DSU s0: 199.1.1.18/29
POP Router e0: 200.1.1.1/3 0 primary
199.1.1.1/30 secondary
199.1.1.5/30 secondary
199.1.1.9/30 secondary
POP Black Box e0:
wan1:
wan2:
wan3:
200.1.1.1/30
10.1.1.1/30
10.1.1.5/30
10.1.1.9/30
Black Box 1 e0:
wan1: 201.1.1.2/30
10.1.1.2/30
Router 1 e0: 201.1.1.1/30 primary
199.1.1.2/30 secondary
Black Box 2 e0:
wan1: 202.1.1.2/30
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