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rmichael
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Posts: 718
Joined: Sun Mar 08, 2009 11:00 pm

[solved] RB750 does not work with cisco uBR900 cable modem

Sat Jun 26, 2010 4:32 am

All three RB750 I have do the same thing - 17-120kbps throughput on WAN (10Mbps half duplex). Factory settings or just src-nat on WAN port give same results. Tried ROS 4.9 and 4.10. Which other version can I try? Nothing below 4.9 seems available for RB750...

If connected via another router (WAN 100Mbps fdx) , same configuration all three work just fine...

:?

Any suggestions?

PS: supout is not creating. ethernet stats are empty even though router is pushing some traffic:
[admin@MikroTik] /interface ethernet> print stat
                      name: ether1-gateway ether2-local-master ether3-local-sl>
              rx-broadcast:                0                   0              >
                  rx-pause:                0                   0              >
              rx-multicast:                0                   0              >
              rx-fcs-error:                0                   0              >
            rx-align-error:                0                   0              >
                   rx-runt:                0                   0              >
               rx-fragment:                0                   0              >
                     rx-64:                0                   0              >
                 rx-65-127:                0                   0              >
                rx-128-255:                0                   0              >
                rx-256-511:                0                   0              >
               rx-512-1023:                0                   0              >
              rx-1024-1518:                0                   0              >
               rx-1519-max:                0                   0              >
               rx-too-long:                0                   0              >
               rx-overflow:                0                   0              >
                  rx-bytes:                0                   0              >
              tx-broadcast:                0                   0              >
                  tx-pause:                0                   0              >
              tx-multicast:                0                   0              >
               tx-underrun:                0                   0              >
                     tx-64:                0                   0              >
                 tx-65-127:                0                   0              >
                tx-128-255:                0                   0              >
                tx-256-511:                0                   0              >
               tx-512-1023:                0                   0              >
              tx-1024-1518:                0                   0              >
               tx-1519-max:                0                   0              >
               tx-too-long:                0                   0              >
              tx-collision:                0                   0              >
    tx-excessive-collision:                0                   0              >
     tx-multiple-collision:                0                   0              >
       tx-single-collision:                0                   0              >
     tx-excessive-deferred:                0                   0              >
               tx-deferred:                0                   0              >
         tx-late-collision:                0                   0              >
                  tx-bytes:                0                   0              >


I figured it out: eth1 will not work with the modem- other ports work fine, at least with ROS 3.30 (I don't have time to check other versions and I'll stick with 3.30 since 4.x supout was failing and 3.x did not...)
 
mcb
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Posts: 40
Joined: Mon Jul 05, 2010 1:24 am

Re: [solved] RB750 does not work with cisco uBR900 cable mod

Wed Jul 07, 2010 12:37 am

Set the same MAC address as the "other" router has! :D
 
rmichael
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Re: [solved] RB750 does not work with cisco uBR900 cable mod

Wed Jul 07, 2010 6:43 am

Set the same MAC address as the "other" router has! :D
Tried that :D

UBR900 works with all other ports except eth1.
 
mcb
newbie
Posts: 40
Joined: Mon Jul 05, 2010 1:24 am

Re: [solved] RB750 does not work with cisco uBR900 cable mod

Wed Jul 07, 2010 1:30 pm

THEN WHERE IS THE PROBLEM???? :shock:
Stick it in port 2-5, reconfigure the config and go get a beer!
It is amazing how people try to find problems where there are none.
 
User avatar
THG
Member
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Posts: 472
Joined: Thu Oct 15, 2009 1:05 am

Re: [solved] RB750 does not work with cisco uBR900 cable mod

Wed Jul 07, 2010 3:02 pm

All three RB750 I have do the same thing - 17-120kbps throughput on WAN (10Mbps half duplex).
Maybe problem with auto-negotiation on port one, disable it and set it manually.

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