IP Routing and Protocol 89

  presidente 19:51 11 Jun 03
Locked

Hi,
Noticing that my zonealarm was flashing more often than usual I found that I was being "pinged" every 10 seaconds. Following up on the IP address I found out it eas my ISP. I emailed their support dept. Questioning the pinging and was rewarded by this reply:
Protocol 89 is the OSPF IGP and 224.0.0.5 is the special multicast
address for all OSPF routers.
OSPF is just an interior routing protocol used to share routing
information among routers inside a single autonomous network. The
router at 193.95.142.227 is probably the "designated router" and is
periodically checking for neighboring routers or sending out updates
to the "link-state database" used to construct routing tables.
It's normal behavior, as 193.95.142.227 is a router on our network.

Can anyone interperate this tech jargon for me and is this normal practice for an ISP?
Thanks,
Trigger.

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