[es] - ipv6 /127 prefix problem

zivanicd
Dejan Zivanic
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ipv6 /127 prefix problem

^{27.12.2012. u 22:09 - pre 137 meseci}

Jel uspeo neko da natera mikrotik da rutira kroz 127 subnet ?

Dobili smo od TS wan block/127 i kada napravim default gateway prijavljuje mi da je unreachable. Pretpostavljam iz razloga sto u ipv6 u ruting tabeli napravi mrezu sa adresom gatewaya.

Ili sam nesto prevideo ...

Druga strana je sigurno dobro podesena jer sa drugih ipv6 mreza dobijam reply od TS rutera.

BTW interesantno je da ipv6 sa akademske mreze ide preko Njemacke ka Telekomu :)

tesla ~% traceroute6 2a00:e90:0:c::6
traceroute to 2a00:e90:0:c::6 (2a00:e90:0:c::6), 30 hops max, 40 byte packets
1 2001:4170:0:1::1 (2001:4170:0:1::1) 0.476 ms 0.533 ms 0.597 ms
2 2001:4170:1f00:55::2 (2001:4170:1f00:55::2) 0.542 ms 0.624 ms 0.694 ms
3 2001:4170:1f00:53::2 (2001:4170:1f00:53::2) 1.329 ms 1.369 ms 1.357 ms
4 amres.rt1.bud.hu.geant.net (2001:798:1b:10aa::1) 8.051 ms 8.050 ms 8.106 ms
5 xe-7-2-1.edge3.London1.Level3.net (2001:1900:5:2:2::771) 8.008 ms 7.995 ms 7.981 ms
6 vl-11.bar1.Budapest1.Level3.net (2001:1900:5:1::179) 7.966 ms 7.766 ms 7.730 ms
7 vl-4066.edge4.Frankfurt1.Level3.net (2001:1900:5:1::27d) 23.743 ms 23.778 ms 23.803 ms
8 vl-4085.bar1.Vienna1.Level3.net (2001:1900:5:1::30e) 44.177 ms 44.211 ms 44.152 ms
9 vl-11.bar1.Vienna1.Level3.net (2001:1900:5:1::316) 44.307 ms 45.702 ms 45.917 ms
10 TELEKOM-SRB.bar2.Vienna.Level3.net (2001:1900:5:2:2::792) 58.192 ms 58.170 ms 58.181 ms
11 * * *
12 * * *
13 2a00:e90::212:200:16:44 (2a00:e90::212:200:16:44) 62.465 ms 62.570 ms 62.279 ms
14 2a00:e90:0:c::6 (2a00:e90:0:c::6) 62.853 ms 62.908 ms 63.091 ms

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djricky
IT & Network Engineer
AS200305
Beograd

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*:8c8:0:4::ffff

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Re: ipv6 /127 prefix problem

^{28.12.2012. u 10:31 - pre 137 meseci}

kako si dodao def.rutu? ja s njima radim BGPv6, pa def.rutu dobijam BGP-om...

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mulaz
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Re: ipv6 /127 prefix problem

^{28.12.2012. u 11:20 - pre 137 meseci}

Jao, zasto 127?! Sta fali /64? ...lelekom

Proveri da li se izvrsi neighbour discovery. Imao sam slican slucaj, gde je pomoglo dodajanje mac-a u neighbor cache tabelu.

Bolje ispasti glup nego iz aviona
http://www.mulaz.org/

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zivanicd
Dejan Zivanic
KLADOVONET ISP
Kladovo

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Poruke: 1129
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Re: ipv6 /127 prefix problem

^{28.12.2012. u 16:17 - pre 137 meseci}

/64 bi bilo "vaste of addresses" :)

Dali su mi drugi WAN /126 i sve radi.

[halen@gw1-rb1100] > /tool traceroute 2001:8c8:0:2::4
# ADDRESS RT1 RT2 RT3 STATUS
1 2a00:e90::c:0:0:0:9 5ms 5ms 5ms
2 2a00:e90::212:200:16:44 9ms 9ms 9ms
3 :: 0ms 0ms 0ms
4 :: 0ms 0ms 0ms
5 2001:8c8::2:0:0:0:4 23ms 15ms 9ms

Dakle MT ima problem sa /127 ptp linkom.

Ricky, kad idem kroz ipv6 do tebe imam 5 hopova. Kroz ipv4 imam 11 :)

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