tcpdump command

output of "tcpdump" command is

root@sics-desktop:~# tcpdump -c 10
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
15:40:01.467971 STP 802.1d, Config, Flags [none], bridge-id 8000.00:12:cf:85:59:60.8013, length 43
15:40:01.470496 arp who-has 10.10.198.201 tell 10.10.1.250
15:40:01.508473 IP sics-desktop.local.53283 > mail.keltron.co.in.domain: 56105+ PTR? 201.198.10.10.in-addr.arpa. (44)
15:40:01.538228 IP user-desktop.local.ipp > 10.10.1.255.ipp: UDP, length 173
15:40:01.570203 arp who-has 10.10.63.154 tell 10.10.0.1
15:40:01.570239 arp who-has 10.10.190.52 tell 10.10.1.250
15:40:01.750213 arp who-has 10.10.149.212 tell 10.10.1.250
15:40:01.754824 IP 10.10.1.254 > VRRP.MCAST.NET: VRRPv2, Advertisement, vrid 1, prio 255, authtype none, intvl 1s, length 20
15:40:01.811678 IPX 00000000.00:08:a1:83:ae:7c.0453 > 00000000.ff:ff:ff:ff:ff:ff.0453: ipx-rip-resp 2451780547/1.2
15:40:01.853158 IP 10.10.0.93.netbios-ns > 10.10.1.255.netbios-ns: NBT UDP PACKET(137): QUERY; REQUEST; BROADCAST
10 packets captured
3101 packets received by filter
2731 packets dropped by kernel

what is the meaning of above output line " 15:40:01.570203 arp who-has 10.10.63.154 tell 10.10.0.1" where 10.10.63.154 is not my network ip and no route to this network