IPv6 Gateway monitoring broken in 2.6.0?
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@johnpoz said in IPv6 Gateway monitoring broken in 2.6.0?:
@kimble said in IPv6 Gateway monitoring broken in 2.6.0?:
or reasons that aren't entirely clear, pfsense doesn't start a dpinger process to monitor the gateway when a) I'm using a monitor IP and b) there's no global IPv6 address on the WAN interface.
How would you ping some IPv6 IP if you don't have a global IPv6 address to ping it from.. So that seems kind of blatantly clear to why dpinger couldn't or wouldn't start pinging something if it doesn't have an address to ping from ;)
Good question and beyond my expertise - binding to a link-local address is only going to work for pinging the endpoint. It appears to be working for @JKnott though?
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@kimble said in IPv6 Gateway monitoring broken in 2.6.0?:
It appears to be working for @JKnott though?
BS - sorry but you can not ping a global IPv6 address if you only have a link local address as the source.. Just not freaking possible.. That might be your route, but you still need a valid source IP to use..
How would you ever get an answer?
You could ping your router, or your gateway via the link local, but you wouldn't be able to ping some global IPv6 address without a global IPv6 address as your source.
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@kimble said in IPv6 Gateway monitoring broken in 2.6.0?:
It appears to be working for @JKnott though?
Good question.
I think he did what I did : I focussed at the subject that states :
IPv6 Gateway monitoring broken in 2.6.0?
and my IPv6 Gateway monitoring works very well under 2.6.0.
@kimble said in IPv6 Gateway monitoring broken in 2.6.0?:
Which means it's just a symptom of the multiple dhcp6c instances bug.
You have more then one IPv6 WAN ?
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@johnpoz said in IPv6 Gateway monitoring broken in 2.6.0?:
@kimble said in IPv6 Gateway monitoring broken in 2.6.0?:
It appears to be working for @JKnott though?
BS - sorry but you can not ping a global IPv6 address if you only have a link local address as the source.. Just not freaking possible.. That might be your route, but you still need a valid source IP to use..
How would you ever get an answer?
You could ping your router, or your gateway via the link local, but you wouldn't be able to ping some global IPv6 address without a global IPv6 address as your source.
Maybe it's clever enough to bind to a LAN address in that instance? I've no idea.
Otherwise it's something that cloud do with a more explicit error message, rather than the gateway being stuck on 'pending'.
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@gertjan said in IPv6 Gateway monitoring broken in 2.6.0?:
@kimble said in IPv6 Gateway monitoring broken in 2.6.0?:
It appears to be working for @JKnott though?
Good question.
I think he did what I did : I focussed at the subject that states :
IPv6 Gateway monitoring broken in 2.6.0?
Yes, I did try to edit the OP to make that clearer when I worked out what was going on, but it was out of time.
and my IPv6 Gateway monitoring works very well under 2.6.0.
@kimble said in IPv6 Gateway monitoring broken in 2.6.0?:
Which means it's just a symptom of the multiple dhcp6c instances bug.
You have more then one IPv6 WAN ?
Yes. Depending on the vagaries of the mobile provider I'm using for a backup connection.
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I have a global WAN address, as well as the link local address. The first hop is a link local address, as is common. I cannot use that link local address, but I can use a global address beyond. Also, I cannot even ping that link local address from the command line, so I suspect my ISP has turned off echo.
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@johnpoz said in IPv6 Gateway monitoring broken in 2.6.0?:
BS - sorry but you can not ping a global IPv6 address if you only have a link local address as the source.. Just not freaking possible.. That might be your route, but you still need a valid source IP to use..
All you need is a valid global address and the ping6 command allows setting a source address with the -S option, so any valid address on pfsense can be used. I just tried it, using my LAN global address to ping the address I used for the monitor.
So, even if you don't have a global WAN address, you can still ping a global address by using the LAN address.
This is one area where things can get really "interesting".
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@kimble said in IPv6 Gateway monitoring broken in 2.6.0?:
Maybe it's clever enough to bind to a LAN address in that instance? I've no idea.
You have to specify a source address by using the -S option in ping. I just did it, using my LAN global address.
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