FW: Advertise loopback IP into BGP - BIRD 2.0.1

[LAKSHMANAN, THIRUVAZHIYA]

Can someone help me on this please ?

Regards,
Thiruvazhiyan Lakshmanan
NVP – Testing and Certification team
Room - A3 1C-24
Middletown, NJ 07748 USA
Email: tl488q at att.com<mailto:tl488q at att.com>
Office: +1 732 420 8076
Mobile: +1 732 331 3485

From: LAKSHMANAN, THIRUVAZHIYA
Sent: March 01, 2018 4:12 PM
To: 'Robert Blayzor'
Subject: RE: Advertise loopback IP into BGP - BIRD 2.0.1


Hi Robert,

Thanks for your response. My goal is to just export lo:10 interface IP (10.10.200.3/32) through eBGP and import all the routes on the BGP. With the following configuration, I am able to import all the routes, but export of lo:10 interface route is not happening. Below is my bird.conf , what is that I am missing?



router id 198.51.100.10;

filter http_loopback {

  if net = 10.10.200.3/32 then accept;

}

#protocol kernel {

#        ipv4 {

#                import all;

#                export all;     # Default is export none

#        };

#        scan time 20;

#        persist;                # Don't remove routes on BIRD shutdown

#}



protocol direct {

        interface "lo:10";

        ipv4 {

                export filter http_loopback;

        };

}



protocol device {

        scan time 10;           # Scan interfaces every 10 seconds

}

protocol bgp {

        local 10.10.100.2 as 65110;

        neighbor 10.10.100.1 as 65001;

        ipv4 {

                export filter http_loopback;

                import all;

        };



}



I have a doubt, the "show route" output is also not showing the lo:10 ip in the table. Why is it not in the table. And "show protocol all" output under BGP shows below, it has 6 routes received and 6 rejected for Export updates. Why is it rejecting.



  Channel ipv4

    State:          UP

    Table:          master4

    Preference:     100

    Input filter:   ACCEPT

    Output filter:  http_loopback

    Routes:         6 imported, 0 exported

    Route change stats:     received   rejected   filtered    ignored   accepted

      Import updates:              6          0          0          0          6

      Import withdraws:            0          0        ---          0          0

      Export updates:              6          6          0        ---          0



Regards,

Thiruvazhiyan Lakshmanan

NVP – Testing and Certification team

Room - A3 1C-24

Middletown, NJ 07748 USA

Email: tl488q at att.com<mailto:tl488q at att.com>

Office: +1 732 420 8076

Mobile: +1 732 331 3485





-----Original Message-----
From: Robert Blayzor [mailto:rblayzor at inoc.net]
Sent: February 26, 2018 6:01 PM
To: LAKSHMANAN, THIRUVAZHIYA
Subject: Re: Advertise loopback IP into BGP - BIRD 2.0.1



Is your goal to ONLY export the loopback? If so, disable the kernel protocol and either just do direct or even statics…  I never use kernel as I’m not using my servers as a router, but rather as just a route server, so I never change or export the actual servers routing table.





You have to add an export to your direct… try:







protocol direct {

       interface "lo:10”;

       ipv4 {

            export filter http_loopback;

       };

}



protocol bgp {

       ...

       ipv4 {

               import all;

       };



}





—

Robert Blayzor

E-Mail/XMPP: rblayzor.AT.inoc.net

PGP:  https://urldefense.proofpoint.com/v2/url?u=https-3A__inoc.net_-7Erblayzor_&d=DwIFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=Hr9lSHBFHFernxnRV47c1g&m=PkbQxaiAM2Xjllf3YBld5GnZTmORifjSx1294IXQ7UQ&s=MzZCQEsf0DeE7MNtwWRqojco70VFAi8e8gFsx91pJV0&e=













> On Feb 26, 2018, at 5:46 PM, LAKSHMANAN, THIRUVAZHIYA <tl488q at att.com<mailto:tl488q at att.com>> wrote:

>

> protocol direct {

>        interface "lo:10";

> }

> filter http_loopback {

>  if net = 10.10.200.3/32 then accept;

> }

> protocol kernel {

>        ipv4 {

>                import all;

>                export all;     # Default is export none

>        };

>        scan time 20;

>        persist;                # Don't remove routes on BIRD shutdown

> }

> protocol device {

>        scan time 10;           # Scan interfaces every 10 seconds

> }

> protocol bgp {

>        local 10.10.100.2 as 65110;

>        neighbor 10.10.100.1 as 65001;

>        ipv4 {

>                export filter http_loopback;

>                import all;

>        };

>

> }


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://trubka.network.cz/pipermail/bird-users/attachments/20180302/bfd215f6/attachment.html>