[atlas-sw-probes] How to force the SW Probe to use particular IP Interface / IP Address?
- Previous message (by thread): [atlas-sw-probes] How to force the SW Probe to use particular IP Interface / IP Address?
- Next message (by thread): [atlas-sw-probes] How to force the SW Probe to use particular IP Interface / IP Address?
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
ripe at brite.cz
ripe at brite.cz
Mon May 25 16:28:34 CEST 2020
Yes the issue is only with case 3) Actually I found this issue when I wanted to run a measurement using non-RFC1918 probes only. I found my SW probes are all marked with System-tag IPv4 RFC1918 although there is public IPv4 present. See my probe 1000069 is tagged with System-tag IPv4 RFC1918 even there is public IPv4, and measurements do correctly state "src_addr":"95.85.x.x" Probe Address Discovery IPv4 IPv6 Connection Address - 2a01:510:xxxx:4888::1 IP Echo Service 95.85.x.x 2a01:510:xxxx:4888::1 The Local IP 192.168.1.1 2a01:510:xxxx:48ff::1 For IPv6 it is different story. On the web page all the IPv6 are listed correctly, but measurements show "src_addr":"2a01:510:xxxx:4888::1" as well as the "Connection Address" does. While the Default Route it different interface with something like 2a01:510:d5:xxxx:xxxx:xxxx:xxxx:xxxx address. Conclusion: - how can I have my probe 1000069 not tagged IPv4 RFC1918? - how can I make the probe use the default outgoing interface mentioned above? Cheers Jiri ______________________________________________________________ > Od: "Philip Homburg" <philip.homburg at ripe.net> > Komu: atlas-sw-probes at ripe.net > Datum: 25.05.2020 10:43 > Předmět: Re: [atlas-sw-probes] How to force the SW Probe to use particular IP Interface / IP Address? > >On 2020/05/24 9:36 , ripe at brite.cz wrote: >> is there a way how to force the SW Probe to use particular IP Interface / IP Address? >> >> 1. Turris Omnia Router: >> 1a - there is public IPv4 on WAN interface, but the probe choose LAN interface that is behind NAT, what is not necessary and would be better to choose the WAN. >> 1b - I have multiple IPv6 interfaces, the probe keeps choosing the one I use for testing and therefore is not as stable as the others. I would like the probe to use WAN6 interface instead. >> >> 2. CentOS virtual machine - there is public IPv4 and local IPv4 RFC1918, again, the probe choose the local instead of the public IP. It's a pity, the probe better use the public one. > >For probes we basically have 3 types of addresses: >1) Addresses used for measurements. Those show up in measurement results >as 'src_addr'. These are determined by the linux kernel on how best to >route the outgoing packet. As long as the probe has one default route, >that typically works. >2) The public address of the probe. This is taken from connections to >our infrastructure. >3) The local address of the probe as reported on the website. Note that >this address is not really used for anything except to show it on the >website. Here we can do better. Because we just take the first address >we find, instead of taking an address for an interface with a default route. > >Note, if you see something wrong case 1) and 2) then we have to >investigate. Case 3) is on our list to look into. > >Philip > > >
- Previous message (by thread): [atlas-sw-probes] How to force the SW Probe to use particular IP Interface / IP Address?
- Next message (by thread): [atlas-sw-probes] How to force the SW Probe to use particular IP Interface / IP Address?
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]