amtgw		18.68.0.10	18.85.0.1
b10gw		18.68.0.14	18.76.0.1
b11gw		18.68.0.21	18.80.0.1
b1gw		18.68.0.1	18.58.0.190
b16gw		18.68.0.2	18.74.0.1
b24lnsgw	18.68.0.15	18.77.0.1
b37aerogw	18.68.0.16	18.79.0.1
b37athenagw	18.68.0.19	18.78.0.1
b37csrgw	18.68.0.13	18.75.0.1
b38gw		18.68.0.4	18.62.0.151
# b4gw		18.68.0.12	18.73.0.1
b13gw		18.68.0.12	18.82.0.1
b66gw		18.68.0.3	18.63.0.1
coke            18.68.0.25      18.145.0.1
e19gw		18.68.0.6	18.88.0.1
e40-03gw	18.68.0.11	18.72.0.1
fmgc		18.68.0.17	18.71.0.1
mathgw		18.68.0.5	18.87.0.1
pepsi		18.68.0.26	18.146.0.1
sewage		18.68.0.8	18.10.0.7	18.26.0.137
sloangw		18.68.0.18	18.86.0.1
w20gw		18.68.0.7	18.70.0.151
w91gw		18.68.0.22	18.92.0.151
b54gw		18.68.0.23	18.83.0.1
# note b54gw is not on the spine!
#b54gw		18.88.0.2	18.83.0.1
gw.lcs.mit.edu	18.10.0.4	10.0.0.7