What is running on udp/7001?

root@turris:/etc# netstat -naup |grep 7001
udp        0      0 0.0.0.0:7001            0.0.0.0:*


PORT     STATE SERVICE        REASON              VERSION
7001/udp open  afs3-callback? udp-response ttl 63
1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at https://nmap.org/cgi-bin/submit.cgi?new-service :
SF-Port7001-UDP:V=7.31%I=7%D=11/19%Time=58301330%P=x86_64-pc-linux-gnu%r(A
SF:FSVersionRequest,5D,"\0\0\x03\xe7\0\0\0\0\0\0\0e\0\0\0\0\0\0\0\0\r\x04\
SF:0\0\0\0\0\0linux-4\.4\.13-05df79f63527051ea0071350f86faf76-9\x20AF_RXRP
SF:C\0\0\0\0\0\0\0\0\0")%r(RPCCheck,20,"r\xfe\x1d\x13\0\0\0\0\0\0\0\x02\0\
SF:0\0\0\0\0\0\0\x04\x01\0\0\0\0\0\0\xff\xff\xff\xfb")%r(DNSStatusRequest,
SF:20,"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x04\x01\0\0\0\0\0\0\xff\xf
SF:f\xff\xfb")%r(NBTStat,20,"\x80\xf0\0\x10\0\x01\0\0\0\0\0\0\0\0\0\0\0\0\
SF:0\0\x04\0\0\0\0\0AA\xff\xff\xff\xfb")%r(Help,20,"\0\0\0\0\0\0\0\0\0\0\0
SF:\0\0\0\0\0\0\0\0\0\x04\x01\0\0\0\0\0\0\xff\xff\xff\xfb")%r(SIPOptions,2
SF:0,"OPTIONS\x20sip:\0\0\0\0\0\0\0\0\x04\x01\0\0\0\0a:\xff\xff\xff\xfb")%
SF:r(Sqlping,20,"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x04\x01\0\0\0\0\
SF:0\0\xff\xff\xff\xfb")%r(NTPRequest,20,"\xe3\0\x04\xfa\0\x01\0\0\0\x01\0
SF:\0\0\0\0\0\0\0\0\0\x04\x01\0\0\0\0\0\0\xff\xff\xff\xfb")%r(SNMPv3GetReq
SF:uest,20,"0:\x02\x01\x030\x0f\x02\x02Ji\x02\0\0\0\0\0\0\0\0\x04\0\0\0\0\
SF:0\x04\0\xff\xff\xff\xfe")%r(xdmcp,20,"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
SF:0\0\0\0\x04\x01\0\0\0\0\0\0\xff\xff\xff\xfb")%r(DNS-SD,20,"\0\0\0\0\0\x
SF:01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x04\0\0\0\0\0s-\xff\xff\xff\xfb")%r(Citr
SF:ix,20,"\x1e\0\x010\x02\xfd\xa8\xe3\0\0\0\0\0\0\0\0\0\0\0\0\x04\x01\0\0\
SF:0\0\0\0\xff\xff\xff\xfb")%r(Kerberos,20,"j\x81n0\x81k\xa1\x03\x02\x01\x
SF:05\xa2\0\0\0\0\0\0\0\0\x04\x01\0\0\0\0P\x80\xff\xff\xff\xfb")%r(sybasea
SF:nywhere,20,"\x1b\0\0=\0\0\0\0\x12CON\0\0\0\0\0\0\0\0\x04\0\0\0\0\0S\0\x
SF:ff\xff\xff\xfb")%r(NetMotionMobility,20,"\0@P\0\0\0\0\x85\]\xb4\x91\(\0
SF:\0\0\0\0\0\0\0\x04\x01\0\0\0\0\xdaB\xff\xff\xff\xfb")%r(DTLSSessionReq,
SF:20,"\x16\xfe\xff\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x04\x01\0\0\0\0\xfd\
SF:0\xff\xff\xff\xfb");

I’ll answer myself:

http://workshop.openafs.org/afsbpw09/talks/thu_2/kafs.pdf
https://www.kernel.org/doc/Documentation/networking/rxrpc.txt

modules:

rxkad
af_rxrpc
kafs

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