[43200] 0.2.215.131.in-addr.arpa. domain name pointer Broad-1.net.caltech.edu
[43200] 1.2.215.131.in-addr.arpa. domain name pointer Broad-Aud-NAT.caltech.edu
[43200] 2.2.215.131.in-addr.arpa. domain name pointer bix.acm.caltech.edu
[43200] 3.2.215.131.in-addr.arpa. domain name pointer miles.acm.caltech.edu
[43200] 4.2.215.131.in-addr.arpa. domain name pointer satchmo.acm.caltech.edu
[43200] 5.2.215.131.in-addr.arpa. domain name pointer dizzy.acm.caltech.edu
[43200] 6.2.215.131.in-addr.arpa. domain name pointer mingus.acm.caltech.edu
[43200] 7.2.215.131.in-addr.arpa. domain name pointer duke.acm.caltech.edu
[43200] 8.2.215.131.in-addr.arpa. domain name pointer count.acm.caltech.edu
[43200] 9.2.215.131.in-addr.arpa. domain name pointer fats.acm.caltech.edu
[43200] 10.2.215.131.in-addr.arpa. domain name pointer herbie.acm.caltech.edu
[43200] 11.2.215.131.in-addr.arpa. domain name pointer blakey.acm.caltech.edu
[43200] 12.2.215.131.in-addr.arpa. domain name pointer trane.acm.caltech.edu
[43200] 13.2.215.131.in-addr.arpa. domain name pointer bop21.acm.caltech.edu
[43200] 14.2.215.131.in-addr.arpa. domain name pointer pixel.caltech.edu
[43200] 15.2.215.131.in-addr.arpa. domain name pointer static-2-15.caltech.edu
[43200] 16.2.215.131.in-addr.arpa. domain name pointer bags.acm.caltech.edu
[43200] 17.2.215.131.in-addr.arpa. domain name pointer bop18.acm.caltech.edu
[43200] 18.2.215.131.in-addr.arpa. domain name pointer bop19.acm.caltech.edu
[43200] 19.2.215.131.in-addr.arpa. domain name pointer yardbird.acm.caltech.edu
[43200] 20.2.215.131.in-addr.arpa. domain name pointer martini.caltech.edu
[43200] 21.2.215.131.in-addr.arpa. domain name pointer pix-1.caltech.edu
[43200] 22.2.215.131.in-addr.arpa. domain name pointer pix-2.caltech.edu
[43200] 23.2.215.131.in-addr.arpa. domain name pointer pix-3.caltech.edu
[43200] 24.2.215.131.in-addr.arpa. domain name pointer pix-4.caltech.edu
[43200] 25.2.215.131.in-addr.arpa. domain name pointer pix-5.caltech.edu
[43200] 26.2.215.131.in-addr.arpa. domain name pointer pix-6.caltech.edu
[43200] 27.2.215.131.in-addr.arpa. domain name pointer pix-7.caltech.edu
[43200] 28.2.215.131.in-addr.arpa. domain name pointer pix-8.caltech.edu
[43200] 29.2.215.131.in-addr.arpa. domain name pointer pix-9.caltech.edu
[43200] 30.2.215.131.in-addr.arpa. domain name pointer pix-10.caltech.edu
[43200] 31.2.215.131.in-addr.arpa. domain name pointer pix-11.caltech.edu
[43200] 32.2.215.131.in-addr.arpa. domain name pointer pix-12.caltech.edu
[43200] 33.2.215.131.in-addr.arpa. domain name pointer pix-13.caltech.edu
[43200] 34.2.215.131.in-addr.arpa. domain name pointer pix-14.caltech.edu
[43200] 35.2.215.131.in-addr.arpa. domain name pointer pix-15.caltech.edu
[43200] 36.2.215.131.in-addr.arpa. domain name pointer pix-16.caltech.edu
[43200] 37.2.215.131.in-addr.arpa. domain name pointer pix-17.caltech.edu
[43200] 38.2.215.131.in-addr.arpa. domain name pointer pix-18.caltech.edu
[43200] 39.2.215.131.in-addr.arpa. domain name pointer pix-19.caltech.edu
[43200] 40.2.215.131.in-addr.arpa. domain name pointer pix-20.caltech.edu
[43200] 41.2.215.131.in-addr.arpa. domain name pointer pix-21.caltech.edu
[43200] 42.2.215.131.in-addr.arpa. domain name pointer pix-22.caltech.edu
[43200] 43.2.215.131.in-addr.arpa. domain name pointer pix-23.caltech.edu
[43200] 44.2.215.131.in-addr.arpa. domain name pointer pix-24.caltech.edu
[43200] 45.2.215.131.in-addr.arpa. domain name pointer pix-25.caltech.edu
[43200] 46.2.215.131.in-addr.arpa. domain name pointer pix-26.caltech.edu
[43200] 47.2.215.131.in-addr.arpa. domain name pointer pix-27.caltech.edu
[43200] 48.2.215.131.in-addr.arpa. domain name pointer pix-28.caltech.edu
[43200] 49.2.215.131.in-addr.arpa. domain name pointer pix-29.caltech.edu
[43200] 50.2.215.131.in-addr.arpa. domain name pointer pix-30.caltech.edu
[43200] 51.2.215.131.in-addr.arpa. domain name pointer pix-31.caltech.edu
[43200] 52.2.215.131.in-addr.arpa. domain name pointer pix-32.caltech.edu
[43200] 53.2.215.131.in-addr.arpa. domain name pointer pix-33.caltech.edu
[43200] 54.2.215.131.in-addr.arpa. domain name pointer pix-34.caltech.edu
[43200] 55.2.215.131.in-addr.arpa. domain name pointer pix-35.caltech.edu
[43200] 56.2.215.131.in-addr.arpa. domain name pointer static-2-56.caltech.edu
[43200] 57.2.215.131.in-addr.arpa. domain name pointer broad-kronos.caltech.edu
[43200] 58.2.215.131.in-addr.arpa. domain name pointer noloafing.caltech.edu
[43200] 59.2.215.131.in-addr.arpa. domain name pointer janies-printer.caltech.edu
[43200] 60.2.215.131.in-addr.arpa. domain name pointer static-2-60.caltech.edu
[43200] 61.2.215.131.in-addr.arpa. domain name pointer dewey.caltech.edu
[43200] 62.2.215.131.in-addr.arpa. domain name pointer afem.caltech.edu
[43200] 63.2.215.131.in-addr.arpa. domain name pointer mcorona.caltech.edu
[43200] 64.2.215.131.in-addr.arpa. domain name pointer mra.caltech.edu
[43200] 65.2.215.131.in-addr.arpa. domain name pointer mgate.caltech.edu
[43200] 66.2.215.131.in-addr.arpa. domain name pointer nik.caltech.edu
[43200] 67.2.215.131.in-addr.arpa. domain name pointer mpix.caltech.edu
[43200] 68.2.215.131.in-addr.arpa. domain name pointer redwall.caltech.edu
[43200] 69.2.215.131.in-addr.arpa. domain name pointer lime.caltech.edu
[43200] 70.2.215.131.in-addr.arpa. domain name pointer mweb.caltech.edu
[43200] 71.2.215.131.in-addr.arpa. domain name pointer bop23.acm.caltech.edu
[43200] 72.2.215.131.in-addr.arpa. domain name pointer broad-rcvng-prn.caltech.edu
[43200] 73.2.215.131.in-addr.arpa. domain name pointer static-2-73.caltech.edu
[43200] 74.2.215.131.in-addr.arpa. domain name pointer static-2-74.caltech.edu
[43200] 75.2.215.131.in-addr.arpa. domain name pointer sweetpea.acm.caltech.edu
[43200] 76.2.215.131.in-addr.arpa. domain name pointer zoot.acm.caltech.edu
[43200] 77.2.215.131.in-addr.arpa. domain name pointer chet.acm.caltech.edu
[43200] 78.2.215.131.in-addr.arpa. domain name pointer bop20.acm.caltech.edu
[43200] 79.2.215.131.in-addr.arpa. domain name pointer lux.acm.caltech.edu
[43200] 80.2.215.131.in-addr.arpa. domain name pointer bop24.acm.caltech.edu
[43200] 81.2.215.131.in-addr.arpa. domain name pointer bop1.acm.caltech.edu
[43200] 82.2.215.131.in-addr.arpa. domain name pointer bop2.acm.caltech.edu
[43200] 83.2.215.131.in-addr.arpa. domain name pointer bop3.acm.caltech.edu
[43200] 84.2.215.131.in-addr.arpa. domain name pointer bop4.acm.caltech.edu
[43200] 85.2.215.131.in-addr.arpa. domain name pointer bop5.acm.caltech.edu
[43200] 86.2.215.131.in-addr.arpa. domain name pointer bop6.acm.caltech.edu
[43200] 87.2.215.131.in-addr.arpa. domain name pointer bop7.acm.caltech.edu
[43200] 88.2.215.131.in-addr.arpa. domain name pointer bop8.acm.caltech.edu
[43200] 89.2.215.131.in-addr.arpa. domain name pointer bop9.acm.caltech.edu
[43200] 90.2.215.131.in-addr.arpa. domain name pointer bop10.acm.caltech.edu
[43200] 91.2.215.131.in-addr.arpa. domain name pointer bop11.acm.caltech.edu
[43200] 92.2.215.131.in-addr.arpa. domain name pointer bop12.acm.caltech.edu
[43200] 93.2.215.131.in-addr.arpa. domain name pointer static-2-93.caltech.edu
[43200] 94.2.215.131.in-addr.arpa. domain name pointer melowitz.caltech.edu
[43200] 95.2.215.131.in-addr.arpa. domain name pointer static-2-95.caltech.edu
[43200] 96.2.215.131.in-addr.arpa. domain name pointer static-2-96.caltech.edu
[43200] 97.2.215.131.in-addr.arpa. domain name pointer epix.caltech.edu
[43200] 98.2.215.131.in-addr.arpa. domain name pointer epix-01.caltech.edu
[43200] 99.2.215.131.in-addr.arpa. domain name pointer epix-02.caltech.edu
[43200] 100.2.215.131.in-addr.arpa. domain name pointer epix-03.caltech.edu
[43200] 101.2.215.131.in-addr.arpa. domain name pointer epix-04.caltech.edu
[43200] 102.2.215.131.in-addr.arpa. domain name pointer epix-05.caltech.edu
[43200] 103.2.215.131.in-addr.arpa. domain name pointer epix-06.caltech.edu
[43200] 104.2.215.131.in-addr.arpa. domain name pointer epix-07.caltech.edu
[43200] 105.2.215.131.in-addr.arpa. domain name pointer epix-08.caltech.edu
[43200] 106.2.215.131.in-addr.arpa. domain name pointer jb.caltech.edu
[43200] 107.2.215.131.in-addr.arpa. domain name pointer compute.nupack.org
[43200] 108.2.215.131.in-addr.arpa. domain name pointer bop13.acm.caltech.edu
[43200] 109.2.215.131.in-addr.arpa. domain name pointer bop14.acm.caltech.edu
[43200] 110.2.215.131.in-addr.arpa. domain name pointer bop15.acm.caltech.edu
[43200] 111.2.215.131.in-addr.arpa. domain name pointer bop16.acm.caltech.edu
[43200] 112.2.215.131.in-addr.arpa. domain name pointer static-2-112.caltech.edu
[43200] 113.2.215.131.in-addr.arpa. domain name pointer ewiki.elowitz.caltech.edu
[43200] 114.2.215.131.in-addr.arpa. domain name pointer homestarrunner.caltech.edu
[43200] 115.2.215.131.in-addr.arpa. domain name pointer sensor-broad-115.caltech.edu
[43200] 116.2.215.131.in-addr.arpa. domain name pointer waves.caltech.edu
[43200] 117.2.215.131.in-addr.arpa. domain name pointer gorilla.caltech.edu
[43200] 118.2.215.131.in-addr.arpa. domain name pointer cannes.caltech.edu
[43200] 119.2.215.131.in-addr.arpa. domain name pointer gijon.caltech.edu
[43200] 120.2.215.131.in-addr.arpa. domain name pointer security-2-120.caltech.edu.2.215.131.in-addr.arpa
[43200] 121.2.215.131.in-addr.arpa. domain name pointer snowdome.caltech.edu
[43200] 122.2.215.131.in-addr.arpa. domain name pointer ganga.caltech.edu
[43200] 123.2.215.131.in-addr.arpa. domain name pointer xiaolongbao.caltech.edu
[43200] 124.2.215.131.in-addr.arpa. domain name pointer bop17.acm.caltech.edu
[43200] 125.2.215.131.in-addr.arpa. domain name pointer ratnhole.caltech.edu
[43200] 126.2.215.131.in-addr.arpa. domain name pointer rnap.caltech.edu
[43200] 127.2.215.131.in-addr.arpa. domain name pointer padthai.caltech.edu
[43200] 128.2.215.131.in-addr.arpa. domain name pointer mailmayo.caltech.edu
[43200] 129.2.215.131.in-addr.arpa. domain name pointer bop22.acm.caltech.edu
[43200] 130.2.215.131.in-addr.arpa. domain name pointer static-2-130.caltech.edu
[43200] 131.2.215.131.in-addr.arpa. domain name pointer sbgrid.caltech.edu
[43200] 132.2.215.131.in-addr.arpa. domain name pointer jpix.caltech.edu
[43200] 133.2.215.131.in-addr.arpa. domain name pointer jpix-01.caltech.edu
[43200] 134.2.215.131.in-addr.arpa. domain name pointer jpix-02.caltech.edu
[43200] 135.2.215.131.in-addr.arpa. domain name pointer jpix-03.caltech.edu
[43200] 136.2.215.131.in-addr.arpa. domain name pointer jbastion.caltech.edu
[43200] 137.2.215.131.in-addr.arpa. domain name pointer leda.caltech.edu
[43200] 138.2.215.131.in-addr.arpa. domain name pointer www.jensen.caltech.edu
[43200] 139.2.215.131.in-addr.arpa. domain name pointer katie.caltech.edu
[43200] 140.2.215.131.in-addr.arpa. domain name pointer otherness.caltech.edu
[43200] 141.2.215.131.in-addr.arpa. domain name pointer brownian.caltech.edu
[43200] 142.2.215.131.in-addr.arpa. domain name pointer bop25.acm.caltech.edu
[43200] 143.2.215.131.in-addr.arpa. domain name pointer nupack1.acm.caltech.edu
[43200] 144.2.215.131.in-addr.arpa. domain name pointer nupack2.acm.caltech.edu
[43200] 145.2.215.131.in-addr.arpa. domain name pointer nupack3.acm.caltech.edu
[43200] 146.2.215.131.in-addr.arpa. domain name pointer nupack4.acm.caltech.edu
[0] 147.2.215.131.in-addr.arpa.: domain name does not exist
[0] 148.2.215.131.in-addr.arpa.: domain name does not exist
[43200] 149.2.215.131.in-addr.arpa. domain name pointer bop26.acm.caltech.edu
[43200] 150.2.215.131.in-addr.arpa. domain name pointer bop27.acm.caltech.edu
[0] 151.2.215.131.in-addr.arpa.: domain name does not exist
[0] 152.2.215.131.in-addr.arpa.: domain name does not exist
[0] 153.2.215.131.in-addr.arpa.: domain name does not exist
[43200] 154.2.215.131.in-addr.arpa. domain name pointer bop28.acm.caltech.edu
[43200] 155.2.215.131.in-addr.arpa. domain name pointer mail-mayo.caltech.edu
[43200] 156.2.215.131.in-addr.arpa. domain name pointer static-2-156.caltech.edu
[43200] 157.2.215.131.in-addr.arpa. domain name pointer louis.acm.caltech.edu
[43200] 158.2.215.131.in-addr.arpa. domain name pointer piercelab.caltech.edu
[0] 159.2.215.131.in-addr.arpa.: domain name does not exist
[0] 160.2.215.131.in-addr.arpa.: domain name does not exist
[0] 161.2.215.131.in-addr.arpa.: domain name does not exist
[0] 162.2.215.131.in-addr.arpa.: domain name does not exist
[0] 163.2.215.131.in-addr.arpa.: domain name does not exist
[0] 164.2.215.131.in-addr.arpa.: domain name does not exist
[0] 165.2.215.131.in-addr.arpa.: domain name does not exist
[0] 166.2.215.131.in-addr.arpa.: domain name does not exist
[0] 167.2.215.131.in-addr.arpa.: domain name does not exist
[0] 168.2.215.131.in-addr.arpa.: domain name does not exist
[0] 169.2.215.131.in-addr.arpa.: domain name does not exist
[0] 170.2.215.131.in-addr.arpa.: domain name does not exist
[43200] 171.2.215.131.in-addr.arpa. domain name pointer DHCP-2-171.caltech.edu
[43200] 172.2.215.131.in-addr.arpa. domain name pointer DHCP-2-172.caltech.edu
[43200] 173.2.215.131.in-addr.arpa. domain name pointer DHCP-2-173.caltech.edu
[43200] 174.2.215.131.in-addr.arpa. domain name pointer DHCP-2-174.caltech.edu
[43200] 175.2.215.131.in-addr.arpa. domain name pointer DHCP-2-175.caltech.edu
[43200] 176.2.215.131.in-addr.arpa. domain name pointer DHCP-2-176.caltech.edu
[43200] 177.2.215.131.in-addr.arpa. domain name pointer DHCP-2-177.caltech.edu
[43200] 178.2.215.131.in-addr.arpa. domain name pointer DHCP-2-178.caltech.edu
[43200] 179.2.215.131.in-addr.arpa. domain name pointer DHCP-2-179.caltech.edu
[43200] 180.2.215.131.in-addr.arpa. domain name pointer DHCP-2-180.caltech.edu
[43200] 181.2.215.131.in-addr.arpa. domain name pointer DHCP-2-181.caltech.edu
[43200] 182.2.215.131.in-addr.arpa. domain name pointer DHCP-2-182.caltech.edu
[43200] 183.2.215.131.in-addr.arpa. domain name pointer DHCP-2-183.caltech.edu
[43200] 184.2.215.131.in-addr.arpa. domain name pointer DHCP-2-184.caltech.edu
[43200] 185.2.215.131.in-addr.arpa. domain name pointer DHCP-2-185.caltech.edu
[43200] 186.2.215.131.in-addr.arpa. domain name pointer DHCP-2-186.caltech.edu
[43200] 187.2.215.131.in-addr.arpa. domain name pointer DHCP-2-187.caltech.edu
[43200] 188.2.215.131.in-addr.arpa. domain name pointer DHCP-2-188.caltech.edu
[43200] 189.2.215.131.in-addr.arpa. domain name pointer DHCP-2-189.caltech.edu
[43200] 190.2.215.131.in-addr.arpa. domain name pointer DHCP-2-190.caltech.edu
[43200] 191.2.215.131.in-addr.arpa. domain name pointer DHCP-2-191.caltech.edu
[43200] 192.2.215.131.in-addr.arpa. domain name pointer DHCP-2-192.caltech.edu
[43200] 193.2.215.131.in-addr.arpa. domain name pointer DHCP-2-193.caltech.edu
[43200] 194.2.215.131.in-addr.arpa. domain name pointer DHCP-2-194.caltech.edu
[43200] 195.2.215.131.in-addr.arpa. domain name pointer DHCP-2-195.caltech.edu
[43200] 196.2.215.131.in-addr.arpa. domain name pointer DHCP-2-196.caltech.edu
[43200] 197.2.215.131.in-addr.arpa. domain name pointer DHCP-2-197.caltech.edu
[43200] 198.2.215.131.in-addr.arpa. domain name pointer DHCP-2-198.caltech.edu
[43200] 199.2.215.131.in-addr.arpa. domain name pointer DHCP-2-199.caltech.edu
[43200] 200.2.215.131.in-addr.arpa. domain name pointer DHCP-2-200.caltech.edu
[43200] 201.2.215.131.in-addr.arpa. domain name pointer DHCP-2-201.caltech.edu
[43200] 202.2.215.131.in-addr.arpa. domain name pointer DHCP-2-202.caltech.edu
[43200] 203.2.215.131.in-addr.arpa. domain name pointer DHCP-2-203.caltech.edu
[43200] 204.2.215.131.in-addr.arpa. domain name pointer DHCP-2-204.caltech.edu
[43200] 205.2.215.131.in-addr.arpa. domain name pointer DHCP-2-205.caltech.edu
[43200] 206.2.215.131.in-addr.arpa. domain name pointer DHCP-2-206.caltech.edu
[43200] 207.2.215.131.in-addr.arpa. domain name pointer DHCP-2-207.caltech.edu
[43200] 208.2.215.131.in-addr.arpa. domain name pointer DHCP-2-208.caltech.edu
[43200] 209.2.215.131.in-addr.arpa. domain name pointer DHCP-2-209.caltech.edu
[43200] 210.2.215.131.in-addr.arpa. domain name pointer DHCP-2-210.caltech.edu
[43200] 211.2.215.131.in-addr.arpa. domain name pointer DHCP-2-211.caltech.edu
[43200] 212.2.215.131.in-addr.arpa. domain name pointer DHCP-2-212.caltech.edu
[43200] 213.2.215.131.in-addr.arpa. domain name pointer DHCP-2-213.caltech.edu
[43200] 214.2.215.131.in-addr.arpa. domain name pointer DHCP-2-214.caltech.edu
[43200] 215.2.215.131.in-addr.arpa. domain name pointer DHCP-2-215.caltech.edu
[43200] 216.2.215.131.in-addr.arpa. domain name pointer DHCP-2-216.caltech.edu
[43200] 217.2.215.131.in-addr.arpa. domain name pointer DHCP-2-217.caltech.edu
[43200] 218.2.215.131.in-addr.arpa. domain name pointer DHCP-2-218.caltech.edu
[43200] 219.2.215.131.in-addr.arpa. domain name pointer DHCP-2-219.caltech.edu
[43200] 220.2.215.131.in-addr.arpa. domain name pointer DHCP-2-220.caltech.edu
[43200] 221.2.215.131.in-addr.arpa. domain name pointer DHCP-2-221.caltech.edu
[43200] 222.2.215.131.in-addr.arpa. domain name pointer DHCP-2-222.caltech.edu
[43200] 223.2.215.131.in-addr.arpa. domain name pointer DHCP-2-223.caltech.edu
[43200] 224.2.215.131.in-addr.arpa. domain name pointer DHCP-2-224.caltech.edu
[43200] 225.2.215.131.in-addr.arpa. domain name pointer DHCP-2-225.caltech.edu
[43200] 226.2.215.131.in-addr.arpa. domain name pointer DHCP-2-226.caltech.edu
[43200] 227.2.215.131.in-addr.arpa. domain name pointer DHCP-2-227.caltech.edu
[43200] 228.2.215.131.in-addr.arpa. domain name pointer DHCP-2-228.caltech.edu
[43200] 229.2.215.131.in-addr.arpa. domain name pointer DHCP-2-229.caltech.edu
[43200] 230.2.215.131.in-addr.arpa. domain name pointer DHCP-2-230.caltech.edu
[43200] 231.2.215.131.in-addr.arpa. domain name pointer DHCP-2-231.caltech.edu
[43200] 232.2.215.131.in-addr.arpa. domain name pointer DHCP-2-232.caltech.edu
[43200] 233.2.215.131.in-addr.arpa. domain name pointer DHCP-2-233.caltech.edu
[43200] 234.2.215.131.in-addr.arpa. domain name pointer DHCP-2-234.caltech.edu
[43200] 235.2.215.131.in-addr.arpa. domain name pointer DHCP-2-235.caltech.edu
[43200] 236.2.215.131.in-addr.arpa. domain name pointer DHCP-2-236.caltech.edu
[43200] 237.2.215.131.in-addr.arpa. domain name pointer DHCP-2-237.caltech.edu
[43200] 238.2.215.131.in-addr.arpa. domain name pointer DHCP-2-238.caltech.edu
[43200] 239.2.215.131.in-addr.arpa. domain name pointer DHCP-2-239.caltech.edu
[43200] 240.2.215.131.in-addr.arpa. domain name pointer DHCP-2-240.caltech.edu
[43200] 241.2.215.131.in-addr.arpa. domain name pointer DHCP-2-241.caltech.edu
[43200] 242.2.215.131.in-addr.arpa. domain name pointer DHCP-2-242.caltech.edu
[43200] 243.2.215.131.in-addr.arpa. domain name pointer DHCP-2-243.caltech.edu
[43200] 244.2.215.131.in-addr.arpa. domain name pointer DHCP-2-244.caltech.edu
[43200] 245.2.215.131.in-addr.arpa. domain name pointer DHCP-2-245.caltech.edu
[43200] 246.2.215.131.in-addr.arpa. domain name pointer Broad-MayoMR-PWSW1-2.caltech.edu
[0] 247.2.215.131.in-addr.arpa.: domain name does not exist
[0] 248.2.215.131.in-addr.arpa.: domain name does not exist
[0] 249.2.215.131.in-addr.arpa.: domain name does not exist
[0] 250.2.215.131.in-addr.arpa.: domain name does not exist
[43200] 251.2.215.131.in-addr.arpa. domain name pointer fluke-2.caltech.edu
[43200] 252.2.215.131.in-addr.arpa. domain name pointer BI-RSM-2.caltech.edu
[43200] 253.2.215.131.in-addr.arpa. domain name pointer Broad-RSW-2.caltech.edu
[43200] 254.2.215.131.in-addr.arpa. domain name pointer default-2.caltech.edu
[43200] 255.2.215.131.in-addr.arpa. domain name pointer broadcast-2.caltech.edu