This isn't strictly speaking true. Ciscos uses the same method of subnet
masking as other people in the IP world.
What you described is a cisco wildcard, used to contruct access lists,
distribution lists and other such stuff. You can think of it as a boolean
not of the corresponding subnet mask. So if you want the wildcard that
corresponds a /26 (or 255.255.255.192 depending on your personal preference)
you'd be looking at 0.0.0.63. (in binary
!11111111.11111111.11111111.11000000 = 0.0.0.00111111 = 0.0.0.63 in decimal)
Stephen
--ISMA Ltd, 7 Limeharbour, London E14 9NQ, United Kingdom.PGP key 1024/30F9FE07 1992/12/09 Stephen Dunne <sdun@isma.co.uk>
-----Original Message-----From: Danny Sinang [mailto:danny@uplink.com.ph]Sent: 18 July 1999 06:21To: NTISPSubject: [NTISP] Cisco netmasks
Hello.
Cisco uses netmasks which seem to be the opposite that of UNIX.
For example, 255.255.255.0 in UNIX is actually 0.0.0.255 .
Can anyone provide me a clear way on how I can convert UNIX netmasknotations to that of Cisco's ?
Like in particular, I would like to know what UNIX's 255.255.255.192 is inCisco .
TIA.
- Danny Sinang
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