Traceroute Output

traceroute to www.dcu.ie (136.206.1.33), 30 hops max, 38 byte packets
 1  vlan120.switch.deg.vistatec.ie (85.159.16.65)  2.253 ms  0.874 ms  2.120 ms
 2  ge0-1.router.deg.vistatec.ie (85.159.16.25)  0.671 ms  0.528 ms  0.500 ms
 3  te0-0-0-1-cr2-cwt.hea.net (193.242.111.16)  2.102 ms  1.322 ms  1.177 ms
 4  dcu4.cwt.client.hea.net (193.1.244.38)  1.234 ms  1.287 ms  1.273 ms
 5  * * *
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23  * * *
24  * * *
25  * * *
26  *Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
Icmp checksum is wrong
 * *
27  * * *
28  * * *
29  * * *
30  * * *