Being a bank it wouldn't surprise me if they've got ping disabled. (Edit: they do...)

crosh> ping pcbb-akl.bnz.co.nz
 
PING pcbb-akl.bnz.co.nz (116.89.225.197) 56(84) bytes of data.
 
From 203.97.81.254: icmp_seq=12 Packet filtered
 
From 203.97.81.254: icmp_seq=16 Packet filtered

BNZ support are asking me if I can ping them.

ICMP is off.

TRaceroute doesnt look too flash. Lots of packet loss. Then 'no route to target'

2 125-236-192-9.adsl.xtra.co.nz (125.236.192.9) (NZ)
5.442 ms 9.377 ms 3.934 ms
3 * * *
4 ae8-20.akcr11.global-gateway.net.nz (122.56.116.9)
4.528 ms 4.392 ms 4.187 ms
5 ge-2-0-0-906.ie2.telstraclear.net (203.98.18.65) 4.177 ms 4.442 ms 139.971 ms
6 *
6 203.97.81.254 (NZ) 5.504 ms *
7 * * *
8 * * *
9 203.97.81.254 (NZ) 5.294 ms * *
10 * * 5.692 ms

No route to target: 116.89.225.197

So it looks like BNZ PCBanking is now working despite the BNZ tech guy asking us to do the 'ping' test.