One link; Router A, connects via ether to router B, connects via wireless to router C that connects via ether to router D that connects to router E. From here more routers can be reached throug routing.
A-E is mac level bridge.
A=router; Ether = IP=10.50.51.1/29
B=bridge; Ether1+wlan1 in bridge, IP= 10.50.51.2/29 def.gw 0.0.0.0/0 = 10.50.51.1 (radio-mode=ap-bridge)
C=bridge; Ether1+wlan1 in bridge, IP= 10.50.51.3/29 def.gw 0.0.0.0/0 = 10.50.51.1 (radio-mode=station-bridge)
D=bridge; Ether1+Ether2 in bridge, IP=10.50.51.4/29 def.gw 0.0.0.0/0 = 10.50.51.1
No firewall filter rules in B,C and D
No firewall nat rules in B,C and D
The link works fine, passes all traffic from A and beyond to D and beyond.
A can ping to B and D, but not to C (message from B; “redirect host”)
B can ping to B and D and A, but not to C (timeout)
D can ping to A and B, and to C.
A has B in its ARP table, but not C and D (should be, because they are bridged=same network)
B has A and C in its ARP table, but cannot ping, mac ping, telnet or mac telnet to C (it can to A)
C has only B in its ARP table. Doesn’t see A and D. (Should be. D is adjacent and A is in same mac level network)
D has only A in its ARP table. Doesn’t ‘see’ B and C. (Should be seeing B and C. C is adjacent and B is in same network)
So, bottom line is;
I am on the “A” side but cannot open winbox nor browser session to this antenna “C” where I can to all other 3 units in the same link.
To reach “C” I have to log in to D and start a terminal session towards this antenna C.
It would be more simple to reach with telnet session from B, but that is not possible.
Checked bridge settings, ip notificacion, routes, firewall, nat and routing rules. Nothing strange to be found. Two weeks ago I could reacht that unit “C” normally. But something is changed to prevent me to have access.
I use several links on the similar way, never have this issue. Since the units are all bridged, I should have access to all of them if I have access to the others?
I am puzzled. Any ideas?