Hi, All. I'm having problem with our class B address. Last month, we tested our class B address. We announce the address as 2 x /17 from 2 different POP under the same ISP's data center. However, some ISP do NOT accept our route since the address belongs to traditional Class B address, and they told me that they only accept if we announce it as /16. (They filtered out our route…..) I talked to some people, they suggested me that we need to announce the block as /16 from both POP, even though we only like to announce /17 from each POP (Front /17 from one POP, the other /17 from another POP.). How could we do so ? Please help us. |--------- | | POP A | | /17 |------| |----------| | |--------| |-----| ISP C |-- Internet---X----ISP D | ---------| | |--------| Filtered out here… | POP B |------| | /17 | ----------- Regards, Kenji Anzai