08-16-2018 05:50 PM - edited 03-03-2019 08:52 AM
+---------------+
| | +----------+
| CISCO2901 +------>+ MicroTik +--> X.X.X.254
| | +----------+
+---------------+ X.X.X.253
X.X.X.1
I have a CPE conected to a Service provider through a router MicroTik. I have IP X.X.X.1, management IP of MicroTik is X.X.X.253. When I do a show ip arp, there is a 3rd IP X.X.X.254 with a mac-address of a cisco device.
Ping to X.X.X.253 is 1 ms
Ping to X.X.X.254 is 12 ms
Traceroute to HQ always takes X.X.X.254, so this is our Gateway.
Question: What is the beeter approach to configure the default route?
a) ip route 0.0.0.0 0.0.0.0 X.X.X.253
b) ip route 0.0.0.0 0.0.0.0 X.X.X.254
c) It doesn´t matter
I have configured both and there is a slightly difference when trying to reach HQs IP
09-13-2018 05:37 AM
09-15-2018 09:14 AM
If I am understanding the post correctly a trace route shows x.x.x.254 as the first hop. In that case I agree that the next hop in your default route should be x.x.x.254. It is possible that both would work. But I believe that you would be better using 254 since it appears to be closer to your router.
HTH
Rick
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