If you're pinging public -> public, it's the same subnet, which means the
devices are communicating directly, and not even going through the router,
so OSPF shouldn't be an issue.
Trace a traceroute from one of the devices in question, or see if you can
get a packet capture. COULD be a switch, spanning tree issue, interface
configuration mismatch or . . .
Best,
Justin
On Feb 6, 2008 5:05 AM, Joe Pub <[EMAIL PROTECTED]> wrote:
> I think I have a problem with some OSPF routing. I have a small
> network setup (see attached image) which uses 2 OSPF areas, with 3
> subnets. I have a LAN subnet (192.168.10.0/23, Area 0.0.0.1) and a
> DMZ subnet (172.20.0.0/23, Area 0.0.0.0) and a public subnet which is
> not configured using OSPF.
>
> I can connect and ping nodes from LAN <------> DMZ no problem and can
> also ping from DMZ <-----> Public no problem. But when I try to ping
> and connect to machines within my own public range LAN <-----> Public
> I have some connectivity issues. Pings will take a while and time
> out, then eventually (2 - 10 seconds) it's like OSPF has figured how
> to get there and they works. If them hosts then have not been
> contacted in a while since it started working, I have the ping and
> connectivity problems again.
>
> Does anyone have any idea where I might be going wrong here?
>
> protocol config for the both internal routers below with respective
> OSPF and routing tables. If you need further information please let
> me know.
>
> Thank for the help.
>
> ---------------------------------------------------
>
> protocols {
> ospf4 {
> router-id: 10.1.1.1
> rfc1583-compatibility: false
> ip-router-alert: false
> area 0.0.0.0 {
> area-type: "normal"
> interface eth1 {
> link-type: "broadcast"
> address 172.20.1.251 {
> priority: 128
> hello-interval: 10
> router-dead-interval: 40
> interface-cost: 1
> retransmit-interval: 5
> transit-delay: 1
> passive: false
> disable: false
> }
> }
> }
> area 0.0.0.1 {
> area-type: "normal"
> interface eth0 {
> link-type: "broadcast"
> address 192.168.11.253 {
> priority: 128
> hello-interval: 10
> router-dead-interval: 40
> interface-cost: 1
> retransmit-interval: 5
> transit-delay: 1
> passive: false
> disable: false
> }
> }
> }
> }
> static {
> disable: false
> }
> }
>
> Routes: 8/8, Paths: 8/8
> 0.0.0.0/0 [ospf(1)] > to 172.20.1.253 via eth1
> 10.1.1.1/32 [connected(0)] > to 10.1.1.1
> via lo
> 10.1.1.3/32 [ospf(2)] > to 172.20.1.253 via eth1
> 10.1.1.4/32 [ospf(2)] > to 172.20.1.252 via eth1
> 127.0.0.0/8 [connected(0)] > to 127.0.0.1
> via lo
> 172.20.0.0/23 [connected(0)] > to 172.20.1.251
> via eth1
> 192.168.10.0/23 [connected(0)] > to
> 192.168.11.253 via eth0
> 192.168.11.254/32 [connected(0)] > to 192.168.11.254
> via eth0
>
> --------------------------------------------------------------------------------
>
> protocols {
> ospf4 {
> router-id: 10.1.1.2
> rfc1583-compatibility: false
> ip-router-alert: false
> area 0.0.0.0 {
> area-type: "normal"
> interface eth1 {
> link-type: "broadcast"
> address 172.20.1.250 {
> priority: 128
> hello-interval: 10
> router-dead-interval: 40
> interface-cost: 1
> retransmit-interval: 5
> transit-delay: 1
> passive: false
> disable: false
> }
> }
> }
> area 0.0.0.1 {
> area-type: "normal"
> interface eth0 {
> link-type: "broadcast"
> address 192.168.11.252 {
> priority: 128
> hello-interval: 10
> router-dead-interval: 40
> interface-cost: 1
> retransmit-interval: 5
> transit-delay: 1
> passive: false
> disable: false
> }
> }
> }
> }
> static {
> disable: true
> }
> }
>
>
> Routes: 7/7, Paths: 7/7
> 0.0.0.0/0 [ospf(1)] > to 172.20.1.253 via eth1
> 10.1.1.2/32 [connected(0)] > to 10.1.1.2
> via lo
> 10.1.1.3/32 [ospf(2)] > to 172.20.1.253 via eth1
> 10.1.1.4/32 [ospf(2)] > to 172.20.1.252 via eth1
> 127.0.0.0/8 [connected(0)] > to 127.0.0.1
> via lo
> 172.20.0.0/23 [connected(0)] > to 172.20.1.250
> via eth1
> 192.168.10.0/23 [ospf(2)] > to 172.20.1.251
> via eth1
>
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