RE: BGP filter

2018-04-27 Thread Arvin Gan
Hi all, Thanks for your fix. I noticed that we fixed several key bugs recently, do you have plan to merge int-new to master branch and release new archive? My previous reported bug: https://gitlab.labs.nic.cz/labs/bird/commit/f3a8cf050e6181e158dcde2fe885d7bf220eedc3 Thanks Arvin --

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Wilhelm Schuster
On 2018-04-27 21:47, Maximilian Wilhelm wrote: > This way it's easy to have different direct protocols in bird and > easily tag, filter and/or announce prefixes within your network > accordingly. real loopback IPs are part of the IGP (OSPF), both 2 and > 3 are read by instances of protocol direct a

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Grant Taylor
On 04/27/2018 10:26 AM, Wilhelm Schuster wrote: Thank you for the explanation. You're welcome. Can you give a scenario where I would want to use multiple dummy's instead of just adding/removing addresses to the loopback interface? I like the idea that lo is used exclusively by the localhost

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Maximilian Wilhelm
Anno domini 2018 Wilhelm Schuster scripsit: Hi, > Can you give a scenario where I would want to use multiple dummy's > instead of just adding/removing addresses to the loopback interface? I > can't use a dummy interface for "real" packet processing since it just > drops the packet. If the use cas

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Wilhelm Schuster
On 2018-04-27 17:48, Grant Taylor wrote: > On 04/27/2018 02:52 AM, Wilhelm Schuster wrote: >> Hi, > > Hi, Thank you for the explanation. >> What I’m struggling with is understanding the differences between both >> interface types (besides the obvious difference in packet processing) >> and when t

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Grant Taylor
On 04/27/2018 02:52 AM, Wilhelm Schuster wrote: Hi, Hi, I could gather that this is done, because Ethernet interfaces for example (in contrast to loopbacks) can go down making the addresses configured on them unavailable. That's one of the reasons that loopbacks (or dummies) are used. Ano

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Wilhelm Schuster
On 2018-04-27 13:08, Daniel Suchy wrote: > There's quite good article discussing that: > https://b4ldr.wordpress.com/2014/09/06/dummies-link-local-and-the-loop-back/ Thank you for providing the link. Though I'm not sure if I fully understand the implications of the post: In the conclusion they wro

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Alexander Zubkov
Yes. But with lo interface you get such route by default. On Fri, Apr 27, 2018 at 3:04 PM, Alexander Demenshin < aldem-bird.201...@nk7.net> wrote: > On 2018-04-27 12:59, Alexander Zubkov wrote: > > One of the differences is when you configure some prefix on lo you get >> route like this: >> local

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Alexander Demenshin
On 2018-04-27 12:59, Alexander Zubkov wrote: One of the differences is when you configure some prefix on lo you get route like this: local 127.0.0.0/8 [1] dev lo ... And with dummy it is not the case. It could be done manually with any interface, actually: # ip route add local 192.168.128.0/2

Re: BGP filter

2018-04-27 Thread Jan Maria Matejka
On 04/25/2018 03:26 PM, Jan Maria Matejka wrote: > [...] > > On 04/25/2018 12:38 PM, Arvin Gan wrote: >> Thanks, I will try. > > We found out that it may coredump on reconfiguration as instruction > comparison happens > there and the format() instruction has no comparator. Please look into your

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Daniel Suchy
There's quite good article discussing that: https://b4ldr.wordpress.com/2014/09/06/dummies-link-local-and-the-loop-back/ On 04/27/2018 10:52 AM, Wilhelm Schuster wrote: > Hi, > > I’m learning about IP-networking and am in the process of setting up a Linux > router using bird. During my research

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Alexander Zubkov
Hi, One of the differences is when you configure some prefix on lo you get route like this: local 127.0.0.0/8 dev lo ... And with dummy it is not the case. This route type makes kernel consider every address from this space as local - bind on it, reply to pings etc. On Fri, Apr 27, 2018 at 11:40

Re: Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Anton Danilov
Hi. There isn't a difference from perspective of routing. On 27 April 2018 at 11:52, Wilhelm Schuster wrote: > Hi, > > I’m learning about IP-networking and am in the process of setting up a Linux > router using bird. During my research I’ve come across the usage of loopback > interfaces. I coul

Difference between loopback and dummy interfaces for use in Linux routing

2018-04-27 Thread Wilhelm Schuster
Hi, I’m learning about IP-networking and am in the process of setting up a Linux router using bird. During my research I’ve come across the usage of loopback interfaces. I could gather that this is done, because Ethernet interfaces for example (in contrast to loopbacks) can go down making the a