Белая книга для Cisco Cisco Nexus 5010 Switch
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Figure 27. Single-Attached Tenant-Edge Firewall Acting as a Default Gateway for Subnets F1 and F2 as Well as Enforcing
Security Policies Among VRF A, VRF B, and VRF EXT. BORDER Leaf 1 and Border Leaf 2 Extend Layer 2
Segments for Subnets F1 and F2 to Both Firewalls
Segments for Subnets F1 and F2 to Both Firewalls
Configurations 11a and 11b apply to both border leaf nodes.
Note that anycast-gateway mode is not used for the SVI and BDI used to establish routing adjacency with the
firewall. In addition, the IP addresses of the SVI and BDI for the respective VLANs must be different and on
different border leaf nodes, but both interfaces must be in the same subnet.
Also, the route maps used for route redistribution may need to change, depending on the operating practices used.
This document assumes that the firewall is sending the default route using OSPF.
Configuration 11a: IPVLAN-Based Leaf Switch
feature vn-segment-vlan-based
feature nv overlay
feature ospf
## enable feature ospf
route-map FABRIC-RMAP-REDIST-SUBNET permit 10
match tag 12345
ip access-list DEFAULT-ROUTE
20 permit ip 0.0.0.0/0 any
ip access-list DENY-DEFAULT
10 deny ip 0.0.0.0/0 any
20 permit any any
route-map REDIST-DEF-ROUTE permit 10
match ip address DEFAULT-ROUTE
route-map REDIST-DENY-DEFAULT permit 10