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@att.com<mailto:tl488q@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@att.com<mailto:tl488q@att.com> Office: +1 732 420 8076 Mobile: +1 732 331 3485 -----Original Message----- From: Robert Blayzor [mailto:rblayzor@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...

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

};

}