[c-nsp] Problem disabling proxy-arp

[Jared Gillis]

Hello,

I'm running some 3750s that are providing IP aggregation for customers of mine. One of the customers reported that his gateway (the 3750) was responding to ARP for his local LAN addresses. Taking a look, I realized that I forgot to disable proxy-arp on that 3750. I disabled it via the global "ip proxy arp disable" command, but it doesn't seem to have worked; the customer still says he is seeing ARP responses from the gateway, but only on PCs that have just booted. Also, "show ip int xxx" reports that proxy-arp is still live on the interface:
#show ip int vlan101
Vlan101 is up, line protocol is up
  Internet address is 70.36.146.1/24
  Broadcast address is 255.255.255.255
  Address determined by setup command
  MTU is 1500 bytes
  Helper address is not set
  Directed broadcast forwarding is disabled
  Outgoing access list is not set
  Inbound  access list is 100
  Proxy ARP is enabled
  Local Proxy ARP is disabled

I've confirmed that if I go into the interface and issue "no ip proxy-arp", then the "show ip int xxx" output also shows that it is disabled.
What am I missing here to make sure that proxy-arp is globally disabled for every L3 interface on my 3750s? Do I really have to put the "no ip proxy-arp" command on each and every interface?

-Jared