Regular Expressions 101

Client IP: the literal text Client IP: (case sensitive)

Group ClientIP(?<ClientIP>[0-2]\d\d\.[0-2]\d\d\.[0-2]\d\d\.[0-2]\d\d)

Character Class[0-2]

0-2one character from 0 (48₁₀) to 2 (50₁₀)

\da digit

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[0-2]

0-2one character from 0 (48₁₀) to 2 (50₁₀)

\da digit

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[0-2]

0-2one character from 0 (48₁₀) to 2 (50₁₀)

\da digit

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[0-2]

0-2one character from 0 (48₁₀) to 2 (50₁₀)

\da digit

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

Client IP: (?<ClientIP>[0-2]\d\d\.[0-2]\d\d\.[0-2]\d\d\.[0-2]\d\d)

New

Operation: BootRequest (1) Addr type: 1 Addr Len: 6 Hop Count: 0 ID: 0001E240
Sec Since Boot: 65535 Client IP: 018.087.189.006 Your IP: 000.000.000.000 Server IP: 178.187.178.874 Relay Agent IP: 000.000.000.000
Addr: 87:f3:78:a5:78:b2:
Magic Cookie: 63878263

Regular Expression

Substitution