No routes??
ril.kidd
ril.kidd at gmail.com
Sun Sep 9 22:00:00 CEST 2012
On 09/09/12 20:36, Виталий Туровец wrote:
> 2012/9/9 ril.kidd <ril.kidd at gmail.com>:
>> On 09/09/12 19:57, Виталий Туровец wrote:
>>> 2012/9/9 ril.kidd <ril.kidd at gmail.com>:
>>>> Ok, i have DNS running on one peer (route client) and listening on a
>>>> virtual
>>>> sub-interface (I intend to add more and do anycasting). the other peer
>>>> will
>>>> be a route server.
>>>> It is the route to the virtual IP on the route client that I want to
>>>> propagate to the route server.
>>>>
>>>> bird> sh protocols all
>>>> name proto table state since info
>>>> kernel1 Kernel master up 14:03
>>>> Preference: 10
>>>> Input filter: ACCEPT
>>>> Output filter: ACCEPT
>>>> Routes: 0 imported, 0 exported, 0 preferred
>>>> Route change stats: received rejected filtered ignored
>>>> accepted
>>>> Import updates: 0 0 0 0 0
>>>> Import withdraws: 0 0 --- 0 0
>>>> Export updates: 0 0 0 --- 0
>>>> Export withdraws: 0 --- --- --- 0
>>>>
>>>> device1 Device master up 14:03
>>>> Preference: 240
>>>> Input filter: ACCEPT
>>>> Output filter: REJECT
>>>> Routes: 0 imported, 0 exported, 0 preferred
>>>> Route change stats: received rejected filtered ignored
>>>> accepted
>>>> Import updates: 0 0 0 0 0
>>>> Import withdraws: 0 0 --- 0 0
>>>> Export updates: 0 0 0 --- 0
>>>> Export withdraws: 0 --- --- --- 0
>>>>
>>>> RC1p BGP master up 14:04 Established
>>>> Description: Route Client1 Peer
>>>> Preference: 100
>>>> Input filter: ACCEPT
>>>> Output filter: ACCEPT
>>>> Routes: 0 imported, 0 exported, 0 preferred
>>>> Route change stats: received rejected filtered ignored
>>>> accepted
>>>> Import updates: 0 0 0 0 0
>>>> Import withdraws: 0 0 --- 0 0
>>>> Export updates: 0 0 0 --- 0
>>>> Export withdraws: 0 --- --- --- 0
>>>> BGP state: Established
>>>> Neighbor address: 192.168.128.32
>>>> Neighbor AS: 64496
>>>> Neighbor ID: 192.168.128.32
>>>> Neighbor caps: refresh AS4
>>>> Session: external route-server AS4
>>>> Source address: 192.168.128.31
>>>> Hold timer: 179/240
>>>> Keepalive timer: 37/80
>>>>
>>>> #Route client bird.conf
>>>>
>>>> router id 192.168.128.21;
>>>>
>>>> #protocol direct {
>>>> # interface "-eth*", "*"; # Restrict network interfaces it works
>>>> with
>>>> #}
>>>>
>>>> protocol kernel {
>>>> # learn; # Learn all alien routes from the kernel
>>>> persist; # Don't remove routes on bird shutdown
>>>> scan time 20; # Scan kernel routing table every 20
>>>> seconds
>>>> # import none; # Default is import all
>>>> export all; # Default is export none
>>>> # kernel table 5; # Kernel table to synchronize with
>>>> (default:
>>>> main)
>>>> }
>>>>
>>>> protocol device {
>>>> scan time 10; # Scan interfaces every 10 seconds
>>>> }
>>>>
>>>> protocol bgp RouteSrv {
>>>> # disabled;
>>>> description "Route Server Peer";
>>>> local as 64496;
>>>> neighbor 192.168.128.20 as 65000;
>>>> import all;
>>>> export all;
>>>> # multihop;
>>>> }
>>>>
>>>> #Route Server bird.conf
>>>>
>>>> router id 192.168.128.20;
>>>>
>>>> # Martian networks
>>>> function net_martian()
>>>> {
>>>> return net ~ [ 169.254.0.0/16+, 172.16.0.0/12+, 192.168.0.0/16+,
>>>> 10.0.0.0/8+,
>>>> 127.0.0.0/8+, 224.0.0.0/4+, 240.0.0.0/4+, 0.0.0.0/32-,
>>>> 0.0.0.0/0{25,32},
>>>> 0.0.0.0/0{0,7} ];
>>>> }
>>>>
>>>> #Local networks
>>>> function net_local()
>>>> {
>>>> return net ~ [ 192.168.128.0/24+, 192.168.122.0/24+ ];
>>>> }
>>>>
>>>> function rt_import(int asn; int set peer_asns; prefix set peer_nets)
>>>> {
>>>> if ! (net ~ peer_nets) then return false;
>>>> if ! (bgp_path.last ~ peer_asns) then return false;
>>>> if bgp_path.first != asn then return false;
>>>> if bgp_path.len > 64 then return false;
>>>> if bgp_next_hop != from then return false;
>>>> return true;
>>>> }
>>>>
>>>> function rt_export_all()
>>>> {
>>>> if proto = "static_bgp" then return true;
>>>> if source != RTS_BGP then return false;
>>>> if net_martian() then return false;
>>>> if bgp_path.len > 64 then return false;
>>>> return true;
>>>> }
>>>>
>>>> #protocol direct {
>>>> # interface "-eth*", "*"; # Restrict network interfaces it works
>>>> with
>>>> #}
>>>>
>>>> protocol kernel {
>>>> # learn; # Learn all alien routes from the kernel
>>>> persist; # Don't remove routes on bird shutdown
>>>> scan time 20; # Scan kernel routing table every 20
>>>> seconds
>>>> # import none; # Default is import all
>>>> export all; # Default is export none
>>>> # kernel table 5; # Kernel table to synchronize with
>>>> (default:
>>>> main)
>>>> }
>>>>
>>>> protocol device {
>>>> scan time 10; # Scan interfaces every 10 seconds
>>>> }
>>>>
>>>> filter bgp_in_client
>>>> {
>>>> if ! rt_import(64496, [ 64496 ], [ 192.168.128.0/24, 10.0.0.0/23+ ])
>>>> then
>>>> reject;
>>>> accept;
>>>> }
>>>>
>>>> filter bgp_out_client
>>>> {
>>>> if ! rt_export_all() then reject;
>>>> accept;
>>>> }
>>>>
>>>>
>>>> protocol bgp RC1 {
>>>> # disabled;
>>>> description "Route Client1 Peer";
>>>> local as 65000;
>>>> neighbor 192.168.128.21 as 64496;
>>>> import filter bgp_in_client;
>>>> export filter bgp_out_client;
>>>> rs client;
>>>> }
>>>>
>>>> [admin at rs ~]# ifconfig -a
>>>> eth0 Link encap:Ethernet HWaddr 00:1A:64:22:5F:E9
>>>> inet addr:192.168.128.31 Bcast:192.168.128.255
>>>> Mask:255.255.255.0
>>>> inet6 addr: fe80::21a:64ff:fe22:5fe9/64 Scope:Link
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> RX packets:3726 errors:0 dropped:0 overruns:0 frame:0
>>>> TX packets:1964 errors:0 dropped:0 overruns:0 carrier:0
>>>> collisions:0 txqueuelen:1000
>>>> RX bytes:331155 (323.3 KiB) TX bytes:187893 (183.4 KiB)
>>>> Interrupt:17
>>>>
>>>> lo Link encap:Local Loopback
>>>> inet addr:127.0.0.1 Mask:255.0.0.0
>>>> inet6 addr: ::1/128 Scope:Host
>>>> UP LOOPBACK RUNNING MTU:16436 Metric:1
>>>> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>>>> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>>>> collisions:0 txqueuelen:0
>>>> RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
>>>>
>>>> [admin at rc ~]# ifconfig -a
>>>> eth0 Link encap:Ethernet HWaddr 00:1A:64:22:60:01
>>>> inet addr:192.168.128.33 Bcast:192.168.128.255
>>>> Mask:255.255.255.0
>>>> inet6 addr: fe80::21a:64ff:fe22:6001/64 Scope:Link
>>>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>>>> RX packets:25056 errors:0 dropped:0 overruns:0 frame:0
>>>> TX packets:10341 errors:0 dropped:0 overruns:0 carrier:0
>>>> collisions:0 txqueuelen:1000
>>>> RX bytes:2368094 (2.2 MiB) TX bytes:1065046 (1.0 MiB)
>>>> Interrupt:17
>>>>
>>>> lo Link encap:Local Loopback
>>>> inet addr:127.0.0.1 Mask:255.0.0.0
>>>> inet6 addr: ::1/128 Scope:Host
>>>> UP LOOPBACK RUNNING MTU:16436 Metric:1
>>>> RX packets:22 errors:0 dropped:0 overruns:0 frame:0
>>>> TX packets:22 errors:0 dropped:0 overruns:0 carrier:0
>>>> collisions:0 txqueuelen:0
>>>> RX bytes:1900 (1.8 KiB) TX bytes:1900 (1.8 KiB)
>>>>
>>>> lo:0 Link encap:Local Loopback
>>>> inet addr:10.0.1.1 Mask:255.255.255.255
>>>> UP LOOPBACK RUNNING MTU:16436 Metric:1
>>>>
>>>> This worked ok on Ubuntu
>>>>
>>>>
>>>>
>>>> On 09/09/12 18:49, Виталий Туровец wrote:
>>>>
>>>> 2012/9/9 ril.kidd <ril.kidd at gmail.com>:
>>>>
>>>> The following commands give me: Peer is not a protocol
>>>>
>>>>
>>>> birdc show protocols all Peer
>>>> birdc show route all protocol Peer
>>>> birdc show route all export Peer
>>>>
>>>> Output from "'# netstat -rn" is:
>>>> Kernel IP routing table
>>>> Destination Gateway Genmask Flags MSS Window irtt
>>>> Iface
>>>> 192.168.128.0 0.0.0.0 255.255.255.0 U 0 0 0
>>>> eth0
>>>> 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0
>>>> eth0
>>>> 0.0.0.0 192.168.128.28 0.0.0.0 UG 0 0 0
>>>> eth0
>>>>
>>>> Well, 1: which routes you expect your bird to propagate to peer?
>>>> 169.254.0.0/16 network. must NOT be routed anyway.
>>>> 2: ports out otput of "show protocols all " command here please.
>>>> 3: show your FULL and UNCUT config file.
>>>> 4: ifconfig -a
>>>>
>>>>
>>>>
>>>> On 09/09/12 17:18, Виталий Туровец wrote:
>>>>
>>>> 2012/9/9 ril.kidd <ril.kidd at gmail.com>:
>>>>
>>>> On 09/09/12 16:57, ril.kidd wrote:
>>>>
>>>> Sorry, bird.conf looks like this:
>>>>
>>>>
>>>> router id 192.168.128.21;
>>>>
>>>> #protocol direct {
>>>> # interface "-eth*", "*"; # Restrict network interfaces it works
>>>> with
>>>> #}
>>>>
>>>> protocol kernel {
>>>> # learn; # Learn all alien routes from the kernel
>>>> persist; # Don't remove routes on bird shutdown
>>>> scan time 20; # Scan kernel routing table every 20
>>>> seconds
>>>> # import none; # Default is import all
>>>> export all; # Default is export none
>>>> # kernel table 5; # Kernel table to synchronize with
>>>> (default:
>>>> main)
>>>> }
>>>>
>>>> protocol device {
>>>> scan time 10; # Scan interfaces every 10 seconds
>>>> }
>>>>
>>>> protocol bgp Peer {
>>>> # disabled;
>>>> description "Peer";
>>>> local as 64496;
>>>> neighbor 192.168.128.20 as 65000;
>>>> import all;
>>>> export all;
>>>> # multihop;
>>>> }
>>>>
>>>> On 09/09/12 16:53, Crest wrote:
>>>>
>>>> On 09.09.2012 17:50, ril.kidd wrote:
>>>>
>>>> On 09/09/12 16:10, ril.kidd wrote:
>>>>
>>>> hello,
>>>> I have two ubuntu 12.04 linux servers running bird 1.3.8 and peered with
>>>> each other.
>>>> The routes from each show in both routing tables.
>>>>
>>>> I installed centos 6.3 on an (identically configured) different set of
>>>> servers and copied the configuration files. I see peering established but
>>>> no
>>>> routes in both routing tables. It doesnt work when peered with the ubuntu
>>>> servers either.
>>>> Please what may be wrong? Or am I just missing something?
>>>>
>>>>
>>>> Actually, when i do "show route" from birdc> i dont get any results
>>>>
>>>> Sorry my crystal ball is unaligned how about a few bird.conf snippets to
>>>> calibrate it?
>>>>
>>>>
>>>>
>>>> What about output from these commands:
>>>> birdc show protocols all Peer
>>>> birdc show route all protocol Peer
>>>> birdc show route all export Peer
>>>> netstat -rn
>>>> ?
>>>>
>>>>
>>>>
>>>>
>>> If i were you, i'd turn on the "kernel" and "device" protocols :)
>>> Your birds don't import any routes from anywhere, wo they wouldn't
>>> propagate anything to peers :)
>>> They just have nothing to :)
>>
>> Thank you.
>> The device protocol is turned on. When I uncomment the learn line unde ther
>> kernel protocol, i get this:
>>
>> #Route Client
>> birdc> show route
>> 0.0.0.0/0 via 192.168.128.28 on eth0 [kernel1 15:43] * (10)
>>
>> #Route Server
>> birdc> show route
>> 0.0.0.0/0 via 192.168.128.28 on eth0 [RC1p 15:33 from
>> 192.168.128.20] ! (100) [AS64496i]
>>
>>
>> 192.168.128.28 is configured as the default gateway on the machine.
>> How do I import the route to the virtual sub-interface?
>>
> Your route should be seen in system's routing table anyway so that
> "netstat -rn" would show it.
> You can add static route by "ip ro add x.x.x.x/xx y.y.y.y" and then
> bird will automatically import it, or you can add a static route
> inside of the bird like described on this page -
> http://bird.network.cz/?get_doc&f=bird-6.html#ss6.9 .
> Anyway, from my point of view, second way is a bit more complicated
> and i always prefer the OS-specific method of adding routes. But it
> may work nicely for you nevertheless :)
>
Ok, thank you. It worked.
However, i wonder why i had to add the route manulaly in CentOS. It was
added automatically in Ubuntu. Also, the static route remains in the
routing table when the virtual interface is down. Is there a way to
remove it and automatically add it when the interface is back up?
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