Paul Gerstenberger wrote:
> There are a number of blackhole routes  and ACL lines for unallocated IPs, 
> that's why it's so long. Probably overkill.
>
> I'm not running NAT on the mikrotik, but I'm planning doing so with some of 
> these IPs.
>
> [ad...@mikrotik] > /routing ospf export
> # feb/11/2010 05:34:32 by RouterOS 4.5
> # software id = QQQQ-QQQQ
> #
> /routing ospf instance
> set default comment="" disabled=no distribute-default=never in-filter=ospf-in 
> metric-bgp=20 \
>     metric-connected=20 metric-default=1 metric-other-ospf=auto metric-rip=20 
> metric-static=20 \
>     name=default out-filter=ospf-out redistribute-bgp=no 
> redistribute-connected=as-type-1 \
>     redistribute-other-ospf=no redistribute-rip=no redistribute-static=no 
> router-id=10.0.4.3
> /routing ospf area
> set backbone area-id=0.0.0.0 comment="" disabled=no instance=default 
> name=backbone type=default
> /routing ospf interface
> add authentication=none authentication-key="" authentication-key-id=1 
> comment="" cost=10 \
>     dead-interval=40s disabled=no hello-interval=10s instance-id=0 
> interface=ether1-gateway \
>     network-type=broadcast passive=no priority=1 retransmit-interval=5s 
> transmit-delay=1s \
>     use-bfd=no
> /routing ospf network
> add area=backbone comment="" disabled=no network=10.0.4.0/27
>
>
>
> Here are the relevant routes:
>
> RS-1# ip show routes   
>
> Destination          Gateway              Owner     Netif        
> -----------          -------              -----     -----        
> default              ZZZ.ZZZ.ZZZ.25       Static    HREC-EIA     
> 10.0.4.0/27          directly connected   -         WISP-201     
> YYY.YYY.YYY.0/24        10.0.4.3             OSPF_ASE  WISP-201     
> XXX.XXX.XXX.24/30    directly connected   -         HREC-EIA     
>
> [ad...@mikrotik] > ip route print
>
> Flags: X - disabled, A - active, D - dynamic, 
> C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme, 
> B - blackhole, U - unreachable, P - prohibit
>
>  #      DST-ADDRESS        PREF-SRC        GATEWAY            DISTANCE
>  0 ADo  0.0.0.0/0              -            10.0.4.1           110     
>  2 ADC  10.0.4.0/27        10.0.4.3        ether1-gateway     0       
> 30 ADC  yyy.yyy.yyy.0/24      zzz.zzz.zzz.1      ether2-local       0       
> 44 ADo  xxx.xxx.xxx.24/30          -        10.0.4.1           110     
>
> -Paul
>   
Strange...everything looks right to me. Routing tables are as I would 
expect. You don't happen to have any ACL's being applied to the 
interface that the Mikrotik is attached too? What happen if you 
eliminate using OSPF for now and just setup the configuration using 
static routes? Does it work then?


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