Ping problem in dual ospf routed link

Ibersystems · Wed Jul 01, 2009 4:59 pm

Dear forum,

I have problems with my network.

I have a dual wireless link between 2 offices. It uses OSPF, nstreme and 5ghz turbo.

The OSPF routes control are made with RB450G, and the links are rb411ah.

RB441s don't have IPs and are working as APbridge and station WDS.

RB450g ether1 are for local lan with 192.168.73.155/24 in office1 and 128.1.1.155/16 in office2.

My problem is that I can ping from, for example 192.168.73.13 to 128.1.1.7 (computers), but I can't ping those IPs from my RB450G routers. I can ping 192.168.73.13 from my 192.168.73.155 router but not from my 128.1.1.155 router. And the same in other direction. I can't ping from my router 128.1.1.155 to 192.168.73.13

If I make a traceroute from my RB450G to my computers, there is unlimited jumps. If I make tracert from my office1 computer to my office2 computer it has 3 jumps (local RB450G, remote RB450G and the destination machine)

WTF?

OFFICE1 RB450G data

/ip address
add address=192.168.73.155/24 broadcast=192.168.73.255 comment="" disabled=no interface=ether1 network=192.168.73.0
add address=192.168.1.225/24 broadcast=192.168.1.255 comment="" disabled=no interface=ether4 network=192.168.1.0
add address=1.1.1.2/24 broadcast=1.1.1.255 comment="" disabled=no interface=ether2 network=1.1.1.0
add address=2.2.2.2/24 broadcast=2.2.2.255 comment="" disabled=no interface=ether3 network=2.2.2.0
add address=128.1.1.157/16 broadcast=128.1.255.255 comment="" disabled=yes interface=ether5 network=128.1.0.0
/routing ospf
set distribute-default=never metric-bgp=20 metric-connected=20 metric-default=1 metric-rip=20 metric-static=20 mpls-te-area=unspecified mpls-te-router-id=unspecified redistribute-bgp=no redistribute-connected=\
    as-type-1 redistribute-rip=no redistribute-static=no router-id=192.168.1.2
/routing ospf interface
add authentication=none authentication-key="" authentication-key-id=1 cost=100 dead-interval=40s disabled=no hello-interval=10s interface=ether3 network-type=broadcast passive=no priority=1 retransmit-interval=5s \
    transmit-delay=1s
/routing ospf network
add area=backbone disabled=no network=1.1.1.0/24
add area=backbone disabled=no network=2.2.2.0/24

OFFICE2 RB450G data

/ip address
add address=128.1.1.155/16 broadcast=128.1.255.255 comment="" disabled=no interface=ether1 network=128.1.0.0
add address=1.1.1.1/24 broadcast=1.1.1.255 comment="" disabled=no interface=ether2 network=1.1.1.0
add address=2.2.2.1/24 broadcast=2.2.2.255 comment="" disabled=no interface=ether3 network=2.2.2.0
add address=192.168.1.155/24 broadcast=192.168.1.255 comment="" disabled=no interface=ether4 network=192.168.1.0
/routing ospf
set distribute-default=never metric-bgp=20 metric-connected=20 metric-default=1 metric-rip=20 metric-static=20 mpls-te-area=unspecified mpls-te-router-id=unspecified redistribute-bgp=no redistribute-connected=\
    as-type-1 redistribute-rip=no redistribute-static=no router-id=192.168.1.1
/routing ospf interface
add authentication=none authentication-key="" authentication-key-id=1 cost=100 dead-interval=40s disabled=no hello-interval=10s interface=ether2 network-type=broadcast passive=no priority=1 retransmit-interval=5s \
    transmit-delay=1s
/routing ospf network
add area=backbone disabled=no network=1.1.1.0/24
add area=backbone disabled=no network=2.2.2.0/24

NEIGHBORS in OFFICE2 RB450.

 # INTERFACE ADDRESS         MAC-ADDRESS       IDENTITY   VERSION    UNPACK            
 0 ether2    1.1.1.2         00:0C:42:xxxxxx office1rb450G    3.22       none              
 1 ether3                    00:0C:42:xxxxxxx 411office2link2      3.13       none              
 2 ether2                    00:0C:42:xxxxxxx 411office2link1      3.13       none              
 3 ether3    2.2.2.2         00:0C:42:xxxxxx office1rb450G    3.22       none              
 4 ether3                    00:0C:42:2xxxxxxx 411office1link2    3.13       none              
 5 ether2                    00:0C:42:xxxxxxx 411office1link1    3.13       none

NEIGHBORS in OFFICE1 RB450.

 # INTERFACE ADDRESS         MAC-ADDRESS       IDENTITY   VERSION    UNPACK            
 0 ether3                    00:0C:42:xxxx 411office1link2    3.13       none              
 1 ether1    192.168.73.240  00:19:06:xxxxxxxx ap-240     Cisco I... none              
 2 ether1    192.168.73.241  00:19:06xxxxxxxxx ap-241     Cisco I... none              
 3 ether1    192.168.2.229   00:0D:Bxxxxxxxxxxx SW1        Cisco I... none              
 4 ether2                    00:0C:42:xxxxxxxxxx 411office1link1   3.13       none              
 5 ether1    192.168.73.242  00:0A:xxxxxxxxxxx ap-242     Cisco I... none              
 6 ether3                    00:0C:42:xxxxxxxxxxx 411office2link2      3.13       none              
 7 ether3    2.2.2.1         00:0C:4xxxxxxxxxxxx office2rb450G      3.22       none              
 8 ether2    1.1.1.1         00:0C:42xxxxxxxxxxxx office2rb450G      3.22       none              
 9 ether2                    00:0C:4xxxxxxxxxxxxx 411office2link1     3.13       none

RB411s link1 is connected to ether2 of the RB450s and RB411 link2 is connected to ehter3 of the RB450s.

traceroute1.JPG

traceroute2.JPG

Thanks for help!

WispZA · Wed Jul 01, 2009 7:12 pm

Without further information this is just a wild guess, but it sounds like the PCs on each side do not know the route back to the IP address that the RB450G is using to communicate.

For example: To the computer the RB450G looks like it is coming from either 1.1.1.1 or 2.2.2.1 or 1.1.1.2 or 2.2.2.2 (depnds which direction you are going) and it does not know how to respond. Or perhaps it's default gateway does not know how to contact those IPs.

EDIT: Can the PCs ping any of the 1.1.1.1 or 1.1.1.2 or 2.2.2.1 or 2.2.2.2 IPs?

Just a suggestion for something to maybe look at.

WispZA

Ping problem in dual ospf routed link

Ping problem in dual ospf routed link

Re: Ping problem in dual ospf routed link

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