Connectivity Guide

OS10# show ip route vrf blue
Codes: C - connected
S - static
B - BGP, IN - internal BGP, EX - external BGP
O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
E2 - OSPF external type 2, * - candidate default,
+ - summary route, > - non-active route
Gateway of last resort is not set
Destination Gateway Dist/Metric Last Change
-------------------------------------------------------------------------------
C 21.0.0.0/24 via 21.0.0.1 ethernet1/1/5 0/0 02:05:00
OS10# show ip route vrf orange
Codes: C - connected
S - static
B - BGP, IN - internal BGP, EX - external BGP
O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
E2 - OSPF external type 2, * - candidate default,
+ - summary route, > - non-active route
Gateway of last resort is not set
Destination Gateway Dist/Metric Last Change
--------------------------------------------------------------------------------
C 31.0.0.0/24 via 31.0.0.1 ethernet1/1/6 0/0 02:09:19
OS10# show ip route vrf green
Codes: C - connected
S - static
B - BGP, IN - internal BGP, EX - external BGP
O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
E2 - OSPF external type 2, * - candidate default,
+ - summary route, > - non-active route
Gateway of last resort is not set
Destination Gateway Dist/Metric Last Change
---------------------------------------------------------------------------------
C 41.0.0.0/24 via 41.0.0.1 ethernet1/1/7 0/0 02:45:16
=================================================================================
View VRF instance information
To display information about a VRF configuration, use the show ip vrf command. To display information on all VRF instances
including the default VRF 0, do not enter a value for vrf-name.
● Display the VRF instance interfaces.
EXEC
show ip vrf [vrf-name]
Static route leaking
Route leaking enables routes that are configured in a default or non-default VRF instance to be made available to another VRF
instance. You can leak routes from a source VRF instance to a destination VRF instance.
The routes need to be leaked in both source as well as destination VRFs in order to achieve end-to-end traffic flow.
If there are any connected routes in the same subnet as statically leaked routes. then the connected routes take precedence.
In static route leaking, DHCP functionality does not work for overlapping subnets. For example, if two interfaces on different
VRFs are on the same subnet and are configured with the same DHCP server, then only one of those interface get an IP
address. This is because the client requests from these interfaces have the same MAC and subnet addresses. The server does
not have any unique parameter to differentiate that the request is from two different clients.
Layer 3
379