> 5) There is no route for this IPv4 packet [which is actually an ICMPv6
> error] as determined by the IPv4 routing table. An ICMPv4 error is
> generated.
>
> 6) The ICMPv4 error is converted to an ICMPv6 error so that it can
> be sent to the original IPv6 sender [router itself].
>
> Note that step (5) and step (6) are the similar to step (2) and (3)
> and will continue forever till the ttl drops to zero.
>
> At step (5) we are generating an ICMPv4 error for the ICMPv6 error.
no, you're generating an icmpv4 error for an tunnelled ipv6 packet
> At step (6) we are generating an ICMPv6 error for the ICMPv6 error.
>
> Should step (5) or step (6) detect this and drop the packet ?
step (5): no.
step (6): yes. you should not send icmp errors in response to icmp
errors.
- Bill
--------------------------------------------------------------------
IETF IPng Working Group Mailing List
IPng Home Page: http://playground.sun.com/ipng
FTP archive: ftp://playground.sun.com/pub/ipng
Direct all administrative requests to [EMAIL PROTECTED]
--------------------------------------------------------------------
