Hi All,
I have been facing an issue with 2 default router showing in my L3 Switches routing table. The scenario is..
My L3 Switch is connected to two routers ( Both connected with different ISP ). BGP and EIGRP running on routers and Eigrp on L3 switch.
Please check below config
Router's Config
router eigrp 100
redistribute bgp 65456 metric 2048 0 0 255 1500
network 10.4.10.133 0.0.0.0
no auto-summary
!
router bgp 65456
no synchronization
bgp log-neighbor-changes
network 10.4.0.0 mask 255.255.0.0
network 10.4.0.0 mask 255.255.255.128
network 10.4.0.128 mask 255.255.255.128
network 10.4.1.128 mask 255.255.255.128
network 10.4.2.0 mask 255.255.255.0
network 10.4.3.0 mask 255.255.255.0
network 10.4.4.0 mask 255.255.255.128
network 10.4.4.128 mask 255.255.255.128
network 10.4.5.0 mask 255.255.255.128
network 10.4.5.128 mask 255.255.255.128
network 10.4.9.0 mask 255.255.255.128
network 10.4.10.0 mask 255.255.255.128
network 10.4.10.128 mask 255.255.255.128
network 10.75.44.218
redistribute eigrp 100
neighbor 10.75.44.217 remote-as 4755
no auto-summary
Switch Config
BHIGWAN_MILL_3750_SW1#sh ip rou | in 0.0.0.0
Gateway of last resort is 10.4.10.134 to network 0.0.0.0
10.0.0.0/8 is variably subnetted, 210 subnets, 9 masks
D*EX 0.0.0.0/0 [170/1250048] via 10.4.10.134, 1d20h, Vlan100
BHIGWAN_MILL_3750_SW1#
BHIGWAN_MILL_3750_SW1#
BHIGWAN_MILL_3750_SW1#sh ip route
84.0.0.0/32 is subnetted, 2 subnets
D EX 84.210.1.148 [170/1250048] via 10.4.10.133, 2d22h, Vlan1
D EX 84.210.1.144 [170/1250048] via 10.4.10.134, 2d22h, Vlan1
[170/1250048] via 10.4.10.133, 2d22h, Vlan1
D*EX 0.0.0.0/0 [170/1250048] via 10.4.10.134, 1d20h, Vlan100
[170/1250048] via 10.4.10.133, 1d20h, Vlan100
BHIGWAN_MILL_3750_SW1#
BHIGWAN_MILL_3750_SW1#
Now when i traceroute form this L3 Switch to a Server
BHIGWAN_MILL_3750_SW1#
BHIGWAN_MILL_3750_SW1#traceroute 10.2.0.212
Type escape sequence to abort.
Tracing the route to 10.2.0.212
1 10.4.10.134 8 msec
10.4.10.133 0 msec
10.4.10.134 0 msec
2 10.75.44.217 17 msec
172.34.143.41 17 msec
10.75.44.217 17 msec
3 172.34.23.234 51 msec
10.75.39.50 92 msec
172.34.23.234 59 msec
4 10.2.200.2 58 msec
10.2.200.10 76 msec
10.2.200.2 75 msec
5 10.2.200.18 76 msec 101 msec 117 msec
6 10.2.200.28 210 msec 75 msec 160 msec
7 10.2.0.212 58 msec 135 msec 50 msec
BHIGWAN_MILL_3750_SW1#
What is the the issue ?? why it's showing 2 default route in the routing table ??