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vovko
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help me with BGP

Mon Nov 26, 2018 4:18 pm

Fullview i take only one mikrotik RID 89.255.95.68 on and i don't have to redistribute fullview to the next .
After i install two BGP sessions with other provider AS64512. He gives me 130000 prefixes to the each mikrotik.
And i have to exchange these routes between mikrotiks.
How i can do it? the problem is RID 89.255.95.68 gives fullview+AS64512 to the RID 89.255.95.67. I don't have to give fulllview.
Roting filters don't help me. I need help
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Last edited by vovko on Mon Nov 26, 2018 5:44 pm, edited 1 time in total.
 
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Anumrak
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Re: help me with BGP

Mon Nov 26, 2018 4:29 pm

In order to forward updates between iBGP peers, they have to be fully meshed by TCP sessions. Are they fully meshed?

In order to prevent full routing list from .68, create routing filter with the first rule accept 0.0.0.0/0 and second rule to discard anything.
 
vovko
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Re: help me with BGP

Tue Nov 27, 2018 10:52 am

In order to forward updates between iBGP peers, they have to be fully meshed by TCP sessions. Are they fully meshed?

In order to prevent full routing list from .68, create routing filter with the first rule accept 0.0.0.0/0 and second rule to discard anything.
I don't quit clear that you written "they have to be fully meshed by TCP sessions. Are they fully meshed?" to me. ???
 
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Anumrak
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Re: help me with BGP

Tue Nov 27, 2018 4:16 pm

In order to forward updates between iBGP peers, they have to be fully meshed by TCP sessions. Are they fully meshed?

In order to prevent full routing list from .68, create routing filter with the first rule accept 0.0.0.0/0 and second rule to discard anything.
I don't quit clear that you written "they have to be fully meshed by TCP sessions. Are they fully meshed?" to me. ???
Are they ibgp neighbors to each other?
 
vovko
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Re: help me with BGP

Wed Nov 28, 2018 10:18 am

In order to forward updates between iBGP peers, they have to be fully meshed by TCP sessions. Are they fully meshed?

In order to prevent full routing list from .68, create routing filter with the first rule accept 0.0.0.0/0 and second rule to discard anything.
I don't quit clear that you written "they have to be fully meshed by TCP sessions. Are they fully meshed?" to me. ???
Are they ibgp neighbors to each other?
connection by L2
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vovko
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Re: help me with BGP

Wed Nov 28, 2018 10:24 am

There is 0.0.0.0/0 gw 89.255.95.1 in the RID 95.67. default gw can't to create problem in it?

The connections RID67 and RID68 to side AS64512 by IP IP tunnels


Also RID67 has firmware 6.42.1 and RID68 is 6.40.3. it is normal? or it can to do problems?
 
vovko
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Re: help me with BGP

Wed Nov 28, 2018 11:04 am

config RID67:
/routing bgp instance
set default as=41601 router-id=89.255.95.67
/routing bgp network
add network=89.255.95.0/24 synchronize=no
add network=89.255.65.0/24 synchronize=no
/routing bgp peer
add name=AS64512 out-filter=CF-Out remote-address=198.51.100.69 tcp-md5-key=xxxxxxxx ttl=default
add disabled=yes in-filter=CFm9-in name=AS41601 out-filter=CFm9-out remote-address=89.255.65.250 remote-as=41601 route-reflect=yes ttl=default
/routing filter
add action=accept chain=CF-Out prefix=89.255.95.0/24
add action=accept chain=CF-Out prefix=89.255.65.0/24
add action=discard chain=CF-Out
add action=accept bgp-communities="" chain=CFm9-out set-out-nexthop=89.255.65.249
add action=discard bgp-communities="" chain=CFm9-in prefix=89.255.65.0/24
add action=discard bgp-communities="" chain=CFm9-in prefix=89.255.95.0/24
add action=discard bgp-communities="" chain=CFm9-in prefix=89.255.97.0/24
add action=discard bgp-communities="" chain=CFm9-in prefix=89.255.91.192/26

config RID68:
/routing bgp instance
set default as=41601 router-id=89.255.95.68
/routing bgp network
add network=89.255.97.0/24 synchronize=no
add network=89.255.91.192/26 synchronize=no
add network=89.255.65.0/24 synchronize=no
add network=89.255.95.0/24 synchronize=no
/routing bgp peer
add name=AS41601 remote-address=10.100.100.2 remote-as=41601 ttl=default
add name=AS65000_vlan39 remote-address=89.255.93.250 remote-as=65000 ttl=default
add name=AS65000_vlan38 remote-address=89.255.93.246 remote-as=65000 ttl=default
add name=AS65000_vlan37 remote-address=89.255.93.242 remote-as=65000 ttl=default
add name=AS64512 out-filter=CF-Out remote-address=198.51.100.197 tcp-md5-key=xxxxxxxx ttl=default
add disabled=yes in-filter=CFoffice-in name=AS41601 out-filter=CFoffice-out remote-address=89.255.65.249 remote-as=41601 route-reflect=yes ttl=\defaul

/routing filter
add action=accept chain=CF-Out prefix=89.255.95.0/24
add action=accept chain=CF-Out prefix=89.255.65.0/24
add action=discard chain=CF-Out
add action=accept append-bgp-communities="" bgp-communities=64512:0 chain=CFoffice-out
add action=discard append-bgp-communities="" bgp-communities=41601:0 chain=CFoffice-out
add action=discard append-bgp-communities="" bgp-communities=65000:0 chain=CFoffice-out
add action=discard append-bgp-communities="" bgp-communities=0:0 chain=CFoffice-out
add action=accept append-bgp-communities="" bgp-communities="" chain=CFoffice-out set-out-nexthop=89.255.65.250
add action=discard append-bgp-communities="" bgp-communities="" chain=CFoffice-in prefix=89.255.65.0/24
add action=discard append-bgp-communities="" bgp-communities="" chain=CFoffice-in prefix=89.255.95.0/24
 
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Anumrak
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Re: help me with BGP

Wed Nov 28, 2018 3:34 pm

/routing bgp peer
add name=AS41601 remote-address=10.100.100.2 remote-as=41601 ttl=default
Why peer IP is 10.100.100.2? Why not 89.255.65.67?

Do you have direct peering between your iBGP routers?
 
vovko
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Re: help me with BGP

Wed Nov 28, 2018 4:05 pm

/routing bgp peer
add name=AS41601 remote-address=10.100.100.2 remote-as=41601 ttl=default
Why peer IP is 10.100.100.2? Why not 89.255.65.67?

Do you have direct peering between your iBGP routers?
ip =10.100.100.1 use to the RID=95.1(Juniper). it is not correct to use grey ip, but this scheme is wrong for my target?
Inside my network i have direct peering between my routers. I connect to AS64512 trough ip ip tunnel.
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