I noticed today that I have a telnetting problem to one router.
This router has a route:
ip route 0.0.0.0 0.0.0.0 172.27.1.2
The interfaces on it are:
The router on the other end has a route to this network as:
We run bgp and redistribute statics.
ip route 10.5.5.0 255.255.255.0 172.27.1.1
My L3 switch has a route to 10.5.5.0 through 10.10.10.1
The issue is this:
I can ping the 10.5.5.1 address with no problem from my workstation, but I can't telnet to it. I can't telnet to it from my L3 switch, but I can ping it. I CAN telnet from the primary router 10.10.10.1 and I CAN telnet to it from any other device that's in the bgp network.
There are no acls keeping me from telnetting to the device. I can't reverse telnet from the device into my L3 switch, but I can into the main router.
If I look at the routing table, I notice that I don't have a route to the 172.27.1.0 network in my L3 switch table, but I do have one for the internal network. I'm assuming this is the cause, but I don't understand why I can't telnet into the 10.5.5.1 router if I can ping it.