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Feature: IP Scanner / Port Scanner: bug fixes, faster and more reliable scans - #3653

Merged

mergify[bot] merged 34 commits into

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feature/improve-scanners

Oct 23, 2026

Merged

Feature: IP Scanner / Port Scanner: bug fixes, faster and more reliable scans#3653
mergify[bot] merged 34 commits into
mainfrom
feature/improve-scanners

Commits on Oct 23, 2026
- Fix: IP Scanner / Port Scanner single completion path (B2, B3, B4, B16)
  
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- Fix: IP Scanner / Port Scanner robust scan preparation (B5, B8, B11)
  
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- Fix: Limit ICMP buffer to 65500 bytes (B4)
  
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- Fix: IP Scanner ICMP attempts ignored (B1)
  
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- Fix: Port probe classification and TIME_WAIT (B17, B18)
  
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- Feature: IP Scanner detects hosts by a refused port (B17, D7)
  
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- Chore: New IP Scanner / Port Scanner defaults (P4, PS4, D1, D5)
  
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- Fix: De-duplicate and expand host ranges faster (B7, B20, P7, P8)
  
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- Fix: Confirm large scans and refuse too large ones (B6)
  
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- Fix: Scan ports only once (B19)
  
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- Fix: Validate IP ranges across 128.0.0.0 (B14)
  
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- Fix: Port Scanner sort by IP address crash, sorted results (PS1-PS3)
  
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- Fix: IP Scanner NetBIOS column sort/visibility and Copy menu (B9, B10, C6)
  
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- Fix: IP Scanner custom commands - hostname injection, CanExecute (S1, B15, T2)
  
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- Improvement: IP Scanner MAC lookup from a cached neighbor table (P1, B12, D2)
  
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- Improvement: IP Scanner / Port Scanner export in the background (P5)
  
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- Docs: IP Scanner / Port Scanner context menu, result and shortcuts (D-1)
  
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- Fix: Handle errors while counting the hosts / ports (B5, B6)
  
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- Improvement: Stagger the start of hosts / ports in the IP / Port Scanner
  
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- Refactor: Exception-free port probe and NetBIOS request
  
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- Fix: Don't start a confirmed large scan in a closed tab (B6)
  
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- Refactor: IPv4Address.ToUInt32 for unsigned IPv4 values (review #8)
  
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- Fix: IP Scanner MAC lookup only for hosts in a local subnet (review #5)
  
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- Fix: Start interval must not limit fast scans (review #2)
  
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- Fix: Keep different hostnames of an IP and the IPv6 scope id when de-duplicating (review #1, #3)
  
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- Fix: Export the results in the order shown in the grid (review #10)
  
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- Docs: Note on port timeouts below 1000 ms (review #4)
  
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- Fix: Report closed ports immediately on Windows (review #4)
  
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- Fix: Only stagger the ramp-up of a scan (review #1, #2, #5)
  
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- Fix: NetBIOS response without MAC address (review #6)
  
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- Fix: Only accept the NetBIOS answer of the scanned host (review #7)
  
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- Fix: Log when the SYN retransmissions can't be disabled (review #8)
  
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- Feature: Attempts setting for the port scan (IP Scanner, Port Scanner) (review #3)
  
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- Chore: Add PR
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Commits

Commits on Oct 23, 2026