I have the setup shown in the attached drawing , I dont know why SWITCH_A is not using the default route .
when I try to ping any subnet behind SWITCH_B , SWITCH_A cannot reach it if I didnot specifically add a static route to that subnet pointing to switch_B
ip route 10.12.217.0 255.255.255.0 10.12.223.253 !!!
SWITCH_A routing table is:
Gateway of last resort is 10.12.223.254 to network 0.0.0.0
10.0.0.0/8 is variably subnetted, 31 subnets, 4 masks
C 10.12.223.252/30 is directly connected, GigabitEthernet3/6
C 10.12.220.0/24 is directly connected, Vlan220
C 10.12.218.0/24 is directly connected, Vlan218
C 10.12.216.0/24 is directly connected, Vlan216
C 10.12.217.0/24 is directly connected, Vlan217
S* 0.0.0.0/0 [1/0] via 10.12.223.254
Can anyone explain this behavior !!!
Okay, so when you run a ping from switch A are you making sure that it is from an interface in either from int vlan 216 or 218 as these are the only 2 networks switch B knows how to get back to.