From: Joseph Saad (joseph.samir.saad@gmail.com)
Date: Sat Dec 29 2007 - 13:48:29 ART
My apology, even with :2 and :3, a /127 should be sufficient.
On Dec 29, 2007 8:46 PM, Joseph Saad <joseph.samir.saad@gmail.com> wrote:
> Tested with 2 interfaces in 2001::0/127 and 2001::1/127 and they can ping
> each other fine.
>
> What are the 2 addressess? I am assuming :2 and :3 or similar, hence it
> must be /126 so that the 2 IP's would be treated as within the same subnet.
>
> Rack1R3#sh runn int e0/0
> interface Ethernet0/0
> no ip address
> ipv6 address 2001::/127
> end
>
> Rack1R1#sh runn int fa0/0
>
> interface FastEthernet0/0
> no ip address
> ipv6 address 2001::1/127
> end
>
> Rack1R1#pi 2001::0
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 2001::, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 4/21/64 ms
>
> Rack1R3#pi 2001::1
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 2001::1, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 4/18/48 ms
>
>
> HTH,
> Joseph.
>
>
>
>
> On Dec 29, 2007 8:08 PM, Joseph Saad <joseph.samir.saad@gmail.com> wrote:
>
> > /31 can even work on Ethernet interfaces as long as you use "no ip
> > directed-broadcast".
> > ppp can take it a step further and have /32 i.e. completely separate
> > networks and can still work it out via the host neighbor route feature.
> >
> >
> >
> > On Dec 29, 2007 5:09 PM, <wim.depauw@getronics.com> wrote:
> >
> > > Hi,
> > >
> > > In task 5.1 they ask to configure IPv6 between R3 and R2 , this
> > > network should have a subnet mask off /127 . I configured this but I can't
> > > ping the other side which seems logical as an subnet mask off /127 is equal
> > > to /31 in IPv4.
> > >
> > > I configured it with a /126 and then it works fine .
> > >
> > >
> > > In IPv4 you have the possibility to use a /31 mask in PPP , does this
> > > function also exist in IPv6 ? I can't find any info about it ....
> > >
> > >
> > > thx
> > > wim
> > >
> > >
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