[metrics-team] Help explain this graph (why correct client IP addresses don't seem to change bridge users)

David Fifield david at bamsoftware.com
Fri Jan 22 21:16:52 UTC 2016


Because of the way the meek pluggable transport works, it used to be
that the server plugin reported the wrong client IP addresses to tor
through the extended ORPort: it reported the CDN IP address, not the
client IP address. As a result it appeared that nearly 100% of meek
users were in the United States. In ticket #13171, we changed that to
report the correct client IP addresses, and as expected, we see a change
in dirreq-v3-reqs that now report many countries.

However the change doesn't appear to be reflected in this graph, which
shows meek users, us bridge users, and cn bridge users. Since deploying
the patch for #13171, the number of cn users stayed pretty flat. (The
increase near the end of the graph probably has more to do with relaxed
rate limiting than with #13171.)

https://bugs.torproject.org/13171#comment:14

This is surprising to me because cn accounts for about 12% of the mass
in the dirreq-v3-reqs lines of the meek bridges. A sample is below;
notice "us=4848,cn=2408" are the first two entries.


https://collector.torproject.org/recent/bridge-descriptors/extra-infos/2016-01-22-19-09-04-extra-infos

@type bridge-extra-info 1.3
extra-info starman AA033EEB61601B2B7312D89B62AAA23DC3ED8A34
master-key-ed25519 wDyfZwRwefOAn2P6xs/Orc93ODRtPjchBKWQ6gEuiqM
published 2016-01-22 18:38:57
write-history 2016-01-22 16:56:07 (14400 s) 31475360768,23558500352,26828833792,28492759040,25694834688,33447501824
read-history 2016-01-22 16:56:07 (14400 s) 29337951232,21400456192,24830735360,26037506048,23493612544,31104707584
dirreq-write-history 2016-01-22 16:56:07 (14400 s) 2182542336,2187110400,2027403264,2487760896,2224635904,2395241472
dirreq-read-history 2016-01-22 16:56:07 (14400 s) 55204864,53849088,54896640,58649600,64333824,74096640
geoip-db-digest 6346E26E2BC96F8511588CE2695E9B0339A75D32
geoip6-db-digest 43CCB43DBC653D8CC16396A882C5F116A6004F0C
dirreq-stats-end 2016-01-22 09:45:02 (86400 s)
dirreq-v3-ips us=1304,cn=824,ru=568,de=448,gb=216,ir=176,br=144,fr=136,in=136,it=136,au=112,mx=112,tr=104,ca=80,id=72,es=64,nl=56,ua=56,za=56,my=48,pl=48,sa=48,at=40,by=40,ch=40,eg=40,ar=32,kr=32,be=24,co=24,cz=24,fi=24,ie=24,kz=24,ng=24,ph=24,ro=24,se=24,ve=24,vn=24,ye=24,ae=16,bd=16,cl=16,dz=16,ec=16,gh=16,hk=16,il=16,jo=16,jp=16,ke=16,kw=16,lb=16,ma=16,nz=16,om=16,pr=16,sk=16,th=16,tw=16,am=8,ao=8,az=8,ba=8,bg=8,bh=8,bo=8,bt=8,cd=8,ci=8,cm=8,cr=8,cv=8,dk=8,do=8,ee=8,et=8,fj=8,gp=8,gq=8,gr=8,gt=8,hr=8,hu=8,iq=8,jm=8,km=8,lt=8,lu=8,lv=8,ly=8,md=8,mn=8,mt=8,mu=8,ni=8,no=8,np=8,pa=8,pe=8,pk=8,ps=8,pt=8,qa=8,sd=8,sg=8,sn=8,so=8,sv=8,sy=8,tj=8,tm=8,tn=8,tt=8,ug=8,uy=8,uz=8,vg=8,zm=8
dirreq-v3-reqs us=4848,cn=2408,ru=1664,de=1496,gb=928,fr=568,mx=528,ir=520,in=480,br=472,it=448,ca=360,au=328,tr=320,nl=232,ua=224,es=192,ch=176,id=168,sa=144,eg=136,za=136,my=128,kr=120,pl=120,ar=104,vn=104,fi=96,ph=96,at=88,by=88,kz=88,be=80,co=80,se=80,ae=72,cl=72,cz=72,ro=64,ec=56,ng=56,pt=56,uz=56,dz=48,ie=48,il=48,ma=48,tn=48,ye=48,bd=40,hk=40,kw=40,nz=40,th=40,tm=40,ve=40,bg=32,dk=32,do=32,gh=32,gt=32,jo=32,jp=32,no=32,pr=32,tw=32,bo=24,gr=24,iq=24,ke=24,lb=24,lu=24,ly=24,pe=24,qa=24,sk=24,so=24,az=16,bh=16,cr=16,hu=16,lv=16,md=16,mt=16,om=16,pa=16,ps=16,sd=16,sn=16,sv=16,sy=16,tt=16,ug=16,am=8,ao=8,ba=8,bt=8,cd=8,ci=8,cm=8,cv=8,ee=8,et=8,fj=8,gp=8,gq=8,hr=8,jm=8,km=8,lt=8,mn=8,mu=8,ni=8,np=8,pk=8,sg=8,tj=8,uy=8,vg=8,zm=8
dirreq-v3-resp ok=19744,not-enough-sigs=0,unavailable=0,not-found=0,not-modified=5520,busy=0
dirreq-v3-direct-dl complete=0,timeout=0,running=0
dirreq-v3-tunneled-dl complete=16796,timeout=2924,running=20,min=2032,d1=15749,d2=32230,q1=40496,d3=49072,d4=67539,md=85099,d6=102365,d7=121084,q3=132618,d8=146433,d9=183340,max=1013024
transport meek
bridge-stats-end 2016-01-22 09:45:10 (86400 s)
bridge-ips us=1872,cn=880,ru=808,de=648,gb=312,it=216,ir=208,br=200,fr=192,in=192,id=168,tr=144,au=128,mx=128,es=104,ca=88,nl=88,za=80,pl=72,my=64,sa=64,ua=64,ch=56,ar=48,at=48,eg=48,by=40,kr=40,sk=40,tw=40,be=32,ke=32,kz=32,ro=32,vn=32,ye=32,bd=24,cl=24,co=24,cz=24,ec=24,fi=24,ie=24,il=24,ma=24,ng=24,nz=24,om=24,ph=24,pr=24,se=24,ve=24,ae=16,bg=16,dz=16,gh=16,hk=16,jo=16,jp=16,kw=16,lb=16,no=16,sg=16,sn=16,th=16,tn=16,ug=16,am=8,ao=8,az=8,ba=8,bh=8,bo=8,bt=8,cd=8,ci=8,cm=8,cr=8,cv=8,dk=8,do=8,ee=8,et=8,fj=8,gp=8,gq=8,gr=8,gt=8,hr=8,hu=8,iq=8,jm=8,km=8,lt=8,lu=8,lv=8,ly=8,md=8,mn=8,mt=8,mu=8,ni=8,np=8,pa=8,pe=8,pk=8,ps=8,pt=8,qa=8,sd=8,so=8,sv=8,sy=8,tj=8,tm=8,tt=8,uy=8,uz=8,vg=8,zm=8
bridge-ip-versions v4=7784,v6=40
bridge-ip-transports <OR>=8,meek=7824
router-digest-sha256 R3gRpFb23S4oyaVO0Xb4RXSxXrJ7t0+jM6pgUm58RNM
router-digest 1147D55D734ADFA8F493C403B933EDEC4E5B0659


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