Hi Vincent,

Thanks for helping.

Well, I have already done it.

Our real problem is how to get the packets from downstream to the routing table I need.

Because bird is just a software for importing or exporting routing tables, it is the Linux kernel that is really responsible for forwarding packets.

In the case where I don't set any ip rule, all packets will use a routing table called main.

Is there any way I can achieve this?


We have only one interface for BGP:      ens18
And our IP Address is:  2a0f:5707:ffe3::57 AS141011
Our customers assume is: 2a0f:5707:ffe3::1 AS1
Our upstream which allowed downstream:2a0f:5707:ffe3::30 AS6939

Therefore we have a BGP session with AS1 and a BGP session with AS6939
AS6939 > Table 147

How should I make the traffic from AS1 (2a0f:5707:ffe3::1) use table 147?



Vincent Bernat <bernat@luffy.cx> 於 2022年7月13日週三 上午8:03寫道：
On 2022-07-13 08:08, Brandon Zhi wrote:

> We created a bgp_v6 (IBGP) session on tunnel1 that allows downstream BGP
> sessions like HE(Hurricane Electric) and put the routing table into
> table 147.
>
> Create bgp_v6_own(IBGP) on tunnel2 to transmit those routing tables from
> BGP that cannot carry downstream to Table 247

You can use the pipe protocol to copy some routes from one table to the
other. So, you'll need one table to receive routes from BGP, then you
can have two "pipe" protocols to copy them on table 147 and table 247.


--
Brandon Zhi
HUIZE LTD

www.huize.asia | www.ixp.su | Twitter


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