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How do a telecom service provider can migrate their network to IPv6?

+2 votes
posted Dec 31, 2015 by Sadanandan

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There are many components,
One is the network nodes migration and another is UE migration. What us your context?

1 Answer

0 votes

As Salil Pointed out -

Lets assume you are trying to migrate the network first - for transition period you may need to have a dual stack which will put the traffic in IPv6 or IPv4 cloud based on the traffic. Remember when you migrate it would be in steps i.e. nodes by nodes and the external element may or may not migrate at all.

Dual Stack Router
enter image description here

Another device you would require would be NAT-PT device as in the transition phase A host with IPv4 address may be sending a request to an IPv6 enabled server which may not understand IPv4 address.

NAT-PT Device
enter image description here

answer Dec 31, 2015 by Maninder Bath
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I usually have some default rules in place on all nodes which look about like this:

-A INPUT --in-interface lo -j ACCEPT
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And the same for IPv4.

The idea with dropping the UNTRACKED/INVALID was that such packages are probably not good fellows and should stay out...

Okay... now with IPv4 everything works as expected...

But with v6 nothing works at all and I get Destination unreachable (even on pings)... I can't even reach the gateway.

When I disable dropping the untracked packets... it starts working,..even when afterwards I enable it again.
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Now... question is why?