From: "Max Rydahl Andersen" <max.andersen(a)redhat.com&gt; To: &quot;jboss-as7-dev(a)lists.jboss.org Development" <jboss-as7-dev(a)lists.jboss.org&gt; Sent: Friday, May 25, 2012 12:30:44 PM Subject: [jboss-as7-dev] ipv6 "usability" question Hi guys, Trying to be sure our tools actually can connect/work with ipv6 enabled servers we're are hitting a bit of a snag. Is it expected that clients unescapes/escapes ipv6 addresses or is :::1 and [:::1] considered equivalent ? i.e. do code need to add []'s when constructing urls, and remove []'s when passing it to things that just need an address ? Just wondering if we could tells users to put [::1] into hostname fields if they want to use ipv6 - then we don't need to add all this escaping/unescaping for ipv6 in the UI layer of tools. /max _______________________________________________ jboss-as7-dev mailing list jboss-as7-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-as7-dev

so in your future using [:::1] should error if not used in a url ? That is what ssh command line seem to be doing btw /max On May 25, 2012, at 13:43 , Pavel Janousek wrote: > Hi Max, > > I really hate to use [xyz] anywhere I'd like to use literal IPv6 address. IP address should be always without brackets! On the other hand, URL need brackets because URL port (+ password) delimiter is the same as IPv6 IP's group delimiter - in this case [] are needed in _every_ case, but again - only when we are using _literal_ IPv6 address, not name. In an URL brackets are important to use because ambiguity can be occurred very easily. > > I hate the present (only one) possible option as ./standalone.sh ... -b [IPv6] -bmanagement=IPv6 because it is really bad and at least unprofessional... in every case we'd like to specify literal IP address, we should do this _only_ without bracket, because this is only one possible text representation... > > I guess, my thought isn't accepted by majority up to now (as we can see in present AS7), but I'd like to bet future is mine...:) > > Pavel > > ----- Original Message ----- >> From: "Max Rydahl Andersen&quot;&lt;max.andersen(a)redhat.com&gt; >> To: &quot;jboss-as7-dev(a)lists.jboss.org Development&quot;&lt;jboss-as7-dev(a)lists.jboss.org&gt; >> Sent: Friday, May 25, 2012 12:30:44 PM >> Subject: [jboss-as7-dev] ipv6 "usability" question >> >> Hi guys, >> >> Trying to be sure our tools actually can connect/work with ipv6 >> enabled servers we're are hitting a bit of a snag. >> >> Is it expected that clients unescapes/escapes ipv6 addresses or is >> :::1 and [:::1] considered equivalent ? >> >> i.e. do code need to add []'s when constructing urls, and remove []'s >> when passing it to things that just need an address ? >> >> Just wondering if we could tells users to put [::1] into hostname >> fields if they want to use ipv6 - then we don't need to add all this >> escaping/unescaping >> for ipv6 in the UI layer of tools. >> >> /max >> >> >> >> _______________________________________________ >> jboss-as7-dev mailing list >> jboss-as7-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/jboss-as7-dev >> _______________________________________________ jboss-as7-dev mailing list jboss-as7-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-as7-dev

> The JDK IP address parser will accept [], I believe, but it's not a > valid address. Yes; the reason -b [::1] works is because InetAddress.getByName("[::1]") works. It's not a case of the AS exerting effort to allow it to work; we'd have to add code to make it not work.

> I'd say that we should allow [] but not recommend it. Agreed. If the AS stops supporting it we will break people who for whatever reason have needlessly added the []. If we do that we need to have a good explanation (almost a FAQ) as to why we made that choice.

> For tools, it's a question of parsing the IP address (getAddressByName > should do it), determining if it's a nameless IPv6 address, and if so, > escaping it; not too onerous a burden in my opinion.

> > On 05/25/2012 06:47 AM, Max Rydahl Andersen wrote: >> so in your future using [:::1] should error if not used in a url ? >> >> That is what ssh command line seem to be doing btw >> >> /max >> >> On May 25, 2012, at 13:43 , Pavel Janousek wrote: >> >>> Hi Max, >>> >>> I really hate to use [xyz] anywhere I'd like to use literal IPv6 address. IP address should be always without brackets! On the other hand, URL need brackets because URL port (+ password) delimiter is the same as IPv6 IP's group delimiter - in this case [] are needed in _every_ case, but again - only when we are using _literal_ IPv6 address, not name. In an URL brackets are important to use because ambiguity can be occurred very easily. >>> >>> I hate the present (only one) possible option as ./standalone.sh ... -b [IPv6] -bmanagement=IPv6 because it is really bad and at least unprofessional... in every case we'd like to specify literal IP address, we should do this _only_ without bracket, because this is only one possible text representation... >>> >>> I guess, my thought isn't accepted by majority up to now (as we can see in present AS7), but I'd like to bet future is mine...:) >>> >>> Pavel >>> >>> ----- Original Message ----- >>>> From: "Max Rydahl Andersen&quot;&lt;max.andersen(a)redhat.com&gt; >>>> To: &quot;jboss-as7-dev(a)lists.jboss.org Development&quot;&lt;jboss-as7-dev(a)lists.jboss.org&gt; >>>> Sent: Friday, May 25, 2012 12:30:44 PM >>>> Subject: [jboss-as7-dev] ipv6 "usability" question >>>> >>>> Hi guys, >>>> >>>> Trying to be sure our tools actually can connect/work with ipv6 >>>> enabled servers we're are hitting a bit of a snag. >>>> >>>> Is it expected that clients unescapes/escapes ipv6 addresses or is >>>> :::1 and [:::1] considered equivalent ? >>>> >>>> i.e. do code need to add []'s when constructing urls, and remove []'s >>>> when passing it to things that just need an address ? >>>> >>>> Just wondering if we could tells users to put [::1] into hostname >>>> fields if they want to use ipv6 - then we don't need to add all this >>>> escaping/unescaping >>>> for ipv6 in the UI layer of tools. >>>> >>>> /max >>>> >>>> >>>> >>>> _______________________________________________ >>>> jboss-as7-dev mailing list >>>> jboss-as7-dev(a)lists.jboss.org >>>> https://lists.jboss.org/mailman/listinfo/jboss-as7-dev >>>> >> >> >> _______________________________________________ >> jboss-as7-dev mailing list >> jboss-as7-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/jboss-as7-dev > > -- Brian Stansberry Principal Software Engineer JBoss by Red Hat _______________________________________________ jboss-as7-dev mailing list jboss-as7-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-as7-dev