When Do I need to do two ways/ One way filtering with mutual

From: louis john (west_coast@inbox.com)
Date: Sat Jun 30 2007 - 03:35:53 ART


Folks,

Please correct me if I am wrong.

Between OSPF & EIGRP

If I have mutual redistribution between OSPF & EIGRP then one way filtering will be enough, the filtering should be done from the OSPF side like tag the packets entering the OSPF domain and filter it on the other router.

This is because EIGRP should not have any problem in it's domain since routes are classified with AD of 90 and 170.

Between RIP & EIGRP

the same case can be applied for OSPF & EIGRP i.e. one way filtering into the RIP domain.

Between OSPF & RIP

Here I should do two ways filtering since both protocols are not classifying who is internal and who is external.

Appreciating your confirmation.



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