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sufianbd
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IPv6 iBGP routes showing Unreachable | OS 6.39rc68 (testing)

Wed Feb 06, 2019 7:12 pm

Hello,

I am trying to build up a IPv6 lab environment and using GNS3 for that. Mikrotik OS i am using is 6.39rc68 (testing). IPv6 setup works fine with the CISCO OS configured in same LAB scenario but when after adding Mikrotik OS 6.39rc68 (testing) i discovered iBGP routes are showing unreachable. I found some old thread about the same issue and not sure its fixed by the OS i am using or i need other version. Please suggest me how to fix it.

[admin@MikroTik] > ipv6 route print
Flags: X - disabled, A - active, D - dynamic,
C - connect, S - static, r - rip, o - ospf, b - bgp, U - unreachable
# DST-ADDRESS GATEWAY DISTANCE
0 ADo ::/0 fe80::c805:7ff:fe54:5... 110
1 Db 2001:ab00::/32 2001:ab00:0:1::1 200
2 ADC 2001:ab00:0:7::1/128 Loopback1 0
3 ADo 2001:ab00:1:1::/127 fe80::c805:7ff:fe54:5... 110
4 ADo 2001:ab00:1:2::/127 fe80::c805:7ff:fe54:5... 110
5 ADo 2001:ab00:1:3::/127 fe80::c805:7ff:fe54:5... 110
6 ADo 2001:ab00:1:4::/127 fe80::c805:7ff:fe54:5... 110
7 ADo 2001:ab00:1:5::/127 fe80::c805:7ff:fe54:5... 110
8 ADo 2001:ab00:1:6::/127 fe80::c805:7ff:fe54:5... 110
9 ADo 2001:ab00:1:7::/127 fe80::c805:7ff:fe54:5... 110
10 ADo 2001:ab00:1:8::/127 fe80::c805:7ff:fe54:5... 110
11 ADo 2001:ab00:1:9::/127 fe80::c805:7ff:fe54:5... 110
12 ADo 2001:ab00:1:a::/127 fe80::c805:7ff:fe54:5... 110
13 ADC 2001:ab00:1:b::/127 ether1 0
14 Db 2001:ab00:1000::/64 2001:ab00:0:6::1 200

But when i ping

[admin@MikroTik] > ping 2001:ab00:1000::1
SEQ HOST SIZE TTL TIME STATUS
0 2001:ab00:1000::1 56 62 39ms echo reply
1 2001:ab00:1000::1 56 62 67ms echo reply
2 2001:ab00:1000::1 56 62 33ms echo reply
3 2001:ab00:1000::1 56 62 35ms echo reply
4 2001:ab00:1000::1 56 62 27ms echo reply
sent=5 received=5 packet-loss=0% min-rtt=27ms avg-rtt=40ms max-rtt=67ms

[admin@MikroTik] > ping 2001:AB00:0:1::1
SEQ HOST SIZE TTL TIME STATUS
0 2001:ab00:0:1::1 56 62 61ms echo reply
1 2001:ab00:0:1::1 56 62 39ms echo reply
2 2001:ab00:0:1::1 56 62 26ms echo reply
3 2001:ab00:0:1::1 56 62 39ms echo reply
4 2001:ab00:0:1::1 56 62 37ms echo reply
sent=5 received=5 packet-loss=0% min-rtt=26ms avg-rtt=40ms max-rtt=61ms

It seems i am getting ping reply.
mikrotik_issue.png
Please suggest.

Thanks in advance
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mkx
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Re: IPv6 iBGP routes showing Unreachable | OS 6.39rc68 (testing)

Wed Feb 06, 2019 8:36 pm

You're using ancient version of ROS. Upgrade to stable (currently 6.43.11) and try again.
 
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mrz
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Re: IPv6 iBGP routes showing Unreachable | OS 6.39rc68 (testing)

Thu Feb 07, 2019 11:47 am

Currently it is not possible to resolve recursively to link local gateways.
 
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paoloaga
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Re: IPv6 iBGP routes showing Unreachable | OS 6.39rc68 (testing)

Thu Feb 07, 2019 4:43 pm

We are all waiting for ROS v7 to solve this issue.

viewtopic.php?f=14&t=98095

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