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Apr
22
comment Drop fragmented packets in nftables
For my own curiosity: why do you want to drop them?
Mar
31
comment Linux host does not retransmit with a lower packet size in response to ICMPv6 Packet Too Big message
I think you might be running into this: forum.ivorde.com/…
Mar
26
comment Ensure systemd wait for IPv6 before start service unit
FYI: the reason that a service can't immediately bind to an IPv6 address is because the system performs Duplicate Address Detection (DAD) before letting software bind to the address. I don't know how to take that into account with systemd though. That network.target and network-online.target signal that they are ready before first finishing DAD seems a bug to me.
Mar
26
reviewed Approve Ensure systemd wait for IPv6 before start service unit
Feb
12
comment HTTPD listening in IPv6, according netstat, but reacheable in IPv4
That down vote is inappropriate. This is the correct answer. Software can bind to the wildcard address on IPv6 and accept both IPv4 and IPv6 connections on it. On Linux this is even the default. The SSH software in your example chose not to.
Feb
8
comment how to make server visible from internet
And then advertise the public address in DNS so that clients can find it
Jan
30
comment Should I put Scope:Link or scope:Global IPv6 address in DNS AAAA record?
Besides that: when running a mail server make sure you use static addresses for sending mail. If your server has IPv6 SLAAC enabled and your mail server software isn't configured to use a fixed source address when sending mail then it will make outbound connections from your temporary IPv6 addresses, which will probably not have reverse DNS set up and will not match your SPF record. So always use a fixed source address and put that in SPF, reverse DNS etc.
Jan
30
comment Should I put Scope:Link or scope:Global IPv6 address in DNS AAAA record?
For anything "on the internet" you always use global scope addresses (and only a subset of those. I.e. ULA addresses are global scope but not routed on the internet). So in public DNS records etc the addresses are almost always from 2000::/3.
Jan
30
comment Should I put Scope:Link or scope:Global IPv6 address in DNS AAAA record?
I feel summoned :)
Jan
22
comment Some IPv6 hosts send all traffic, even in same subnet, to router
Older answer about having multiple addresses: askubuntu.com/questions/141397/…
Jan
22
comment Some IPv6 hosts send all traffic, even in same subnet, to router
And NetworkManager doesn't have the best reputation regarding IPv6 unfortunately :(
Jan
22
comment Some IPv6 hosts send all traffic, even in same subnet, to router
Three addresses is common: 1 link-local, 1 constant SLAAC (marked autoconf) and 1 changing SLAAC (marked autoconf temporary). Check with ip -6 addr
Jan
22
answered Some IPv6 hosts send all traffic, even in same subnet, to router
Jan
2
comment Route single IPv6 address using router advertisement
Hmm, that should work.
Dec
31
answered Why doesn't the IETF reallocate IPv4 netblocks from regions that are over supplied?
Dec
22
comment Route all Ipv4 traffic over a 6in4 tunnel using RouterOS 6.x
@kasperd: do you have a pointer to information about their NAT64 setup? I didn't even know they had one.
Dec
22
answered Route all Ipv4 traffic over a 6in4 tunnel using RouterOS 6.x
Dec
22
awarded  Organizer
Dec
22
reviewed Edit Route all Ipv4 traffic over a 6in4 tunnel using RouterOS 6.x
Dec
22
revised Route all Ipv4 traffic over a 6in4 tunnel using RouterOS 6.x
superfluous text removed and correct wrong protocol names