Methods to Configure EIGRP Default Network Route
In this post we will see the methods by which we can configure a default network route in EIGRP. The two methods are listed as below:
- Create a static route and advertise it into EIGRP.
- Flag an EIGRP route as the default network.
Let us take the example of simple topology as below:
R1 and R2 are running EIGRP.
R2 to R3 is a different network and network 220.127.116.11 should be reachable via a static default route from R2. R2 advertises this route in EIGRP to R1.
Configuration of EIGRP Default Network Route
R1#sh runn | s r eigrp
network 18.104.22.168 0.0.0.0
R2#sh runn | s r eigrp
network 22.214.171.124 0.0.0.0
Static route on R2:
We see we get a default route advertised to R1 as below:
R1#sh ip route
D – EIGRP, EX – EIGRP external, 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
i – IS-IS, su – IS-IS summary, L1 – IS-IS level-1, L2 – IS-IS level-2
ia – IS-IS inter area, * – candidate default, U – per-user static route
o – ODR, P – periodic downloaded static route, H – NHRP, l – LISP
+ – replicated route, % – next hop override
Gateway of last resort is 126.96.36.199 to network 0.0.0.0
D* 0.0.0.0/0 [90/30720] via 188.8.131.52, 00:00:01, FastEthernet0/0
184.108.40.206/8 is variably subnetted, 3 subnets, 2 masks
C 220.127.116.11/24 is directly connected, FastEthernet0/0
L 18.104.22.168/32 is directly connected, FastEthernet0/0
D 22.214.171.124/24 [90/30720] via 126.96.36.199, 00:00:01, FastEthernet0/0
We may also use ip default network global command to make any EIGRP route as the candidate default route.
EIGRP Packet Types: The Complete Guide