There are many times when I need to generate repetitive IP address and the corresponding BGP neighbor via point to point IPs. Due to IP management scheme, it typically goes something like:
1. We beak down the block we have into /24's.
2. The first /28 of the /24 we reserve for loopback and other IPs.
3. Then use the next /28 for p2p IPs.
Obviously 'any' scripting language can figure this out, but here is 7 lines of Python that can help:
Say our blocks are 10.0.8.0/24 and 10.0.10.0/24, need to skip 10.0.9.0/24 for whatever reason.
Script:
import sys
# The range command syntex (start, stop, increment)
for net in range(8, 11, 2):
#starting point for my last octet
i = 16
while i < 32: #sets the condition for upper limit
sys.stdout.write("My IP: 10.0." + str(net) + "." + str(i) + "\t")
sys.stdout.write("BGP Neighor: 10.0." + str(net) + "." + str(i+1) + "\n")
i += 2
Output:
>>>
My IP: 10.0.8.16 BGP Neighor: 10.0.8.17
My IP: 10.0.8.18 BGP Neighor: 10.0.8.19
My IP: 10.0.8.20 BGP Neighor: 10.0.8.21
My IP: 10.0.8.22 BGP Neighor: 10.0.8.23
My IP: 10.0.8.24 BGP Neighor: 10.0.8.25
My IP: 10.0.8.26 BGP Neighor: 10.0.8.27
My IP: 10.0.8.28 BGP Neighor: 10.0.8.29
My IP: 10.0.8.30 BGP Neighor: 10.0.8.31
My IP: 10.0.10.16 BGP Neighor: 10.0.10.17
My IP: 10.0.10.18 BGP Neighor: 10.0.10.19
My IP: 10.0.10.20 BGP Neighor: 10.0.10.21
My IP: 10.0.10.22 BGP Neighor: 10.0.10.23
My IP: 10.0.10.24 BGP Neighor: 10.0.10.25
My IP: 10.0.10.26 BGP Neighor: 10.0.10.27
My IP: 10.0.10.28 BGP Neighor: 10.0.10.29
My IP: 10.0.10.30 BGP Neighor: 10.0.10.31
>>>
I found a lot of interesting information here. A really good post man, very thankful and hopeful that you will write many more posts like this one.
ReplyDeleteI found a lot of interesting information here. A really good post man, very thankful and hopeful that you will write many more posts like this one.
tutuapp apk
ReplyDeleteinstagram sign up
Great Article
ReplyDeleteFinal Year Projects for CSE in Python
FInal Year Project Centers in Chennai
Python Training in Chennai
Python Training in Chennai