trying to reach ip addresses from our data center to our remote office
we are running ospf internally
the remote office sites have 2 routers..with 172.20.255.2 and 172.20.255.3 configured as a subinterface-glbp address is 172.20.255.1
we have a host device-172.20.255.4 all of these are configured with mask 255.255.255.248
for ex
interface GigabitEthernet0/0.1720
encapsulation dot1Q 1720
ip address 172.20.255.3 255.255.255.248
no snmp trap link-status
glbp 4 ip 172.20.255.1
glbp 4 weighting track 1 decrement 100
end
Yet I am unable to reach the router interfaces or the glbp vip address but can ping the .4 host address
I look at routing and notice this
DATACENTER1#sh ip ro 172.20.255.4
Routing entry for 172.20.255.0/29
Known via "ospf 711", distance 110, metric 1
Tag 13979, type extern 2, forward metric 1
Last update from 10.10.1.2 on Vlan101, 2w3d ago
Routing Descriptor Blocks:
* 10.10.1.3, from 10.1.1.10, 2w3d ago, via Vlan101
Route metric is 1, traffic share count is 1
Route tag 65000
10.10.1.2, from 10.10.1.2, 2w3d ago, via Vlan101
Route metric is 1, traffic share count is 1
Route tag 13979
DATACENTER1#sh ip ro 172.20.255.1
Routing entry for 172.20.255.0/30
Known via "static", distance 1, metric 0
Redistributing via ospf 711
Advertised by ospf 711 subnets
Routing Descriptor Blocks:
* 10.11.24.10
Route metric is 0, traffic share count is 1
sh ip rout static
ip route 172.20.255.0 255.255.255.252 10.11.24.10
My question is /30 vs./29 which is configured on the host devices and gw
how would this affect pinging one device instead of another on the same subnet in the same office?
