Destination Host Unreachable

[olzhik]

Hey guys, I'm trying to ping all the PC's to each other, as well as ping and traceroute PC'A' and PC'D' to lo1 and lo99, but for some reason it just gives me the "Destination Host Unreachable" error, how could I fix it?

My ppk file: https://drive.google.com/file/d/1zq5_zGlBRAE05Ee6oqUvHbpaPvcIe7TF/view?usp=sharing

[M02@rt37 · Accepted solution]

Hello @olzhik

B1R2-CR-1 routers don't have these serial interfaces configured !

Review all serials interfaces of all routers:

- You have ip address mismatch (you use /30)

- On a serial link only on interface is DCE and the other DTE. Then select DCE interfaces add clock rate to these interfaces. For the others (DTE) delete clock rate command under interface.

- Re configure IP static routes on all routers

After that PCs should ping each other

As an example: