Comments (2)
royhills
commented on August 31, 2024
1
The -T option only changes the destination MAC address that arp-scan sends the ARP request packets to. It doesn't change the number of IP addresses scanned.
In both cases, arp-scan sends ARP requests for all 256 IP addresses on the specified network interface. In the first instance the requests are sent to the broadcast address so all active hosts will respond, but in the second example it is sending to the specified MAC address so only the host with that address will respond.
The 2.4 seconds is the time taken to scan 256 IP addresses with the default bandwidth limit and retry count.
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adminy
commented on August 31, 2024
I set -M 1 and that seems much faster. Thanks
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Related Issues (20)
- arp-scan does not look in /usr/share/arp-scan if trying to open ieee-oui.txt failes with EACCESS HOT 15
- Binary packaging status for version 1.10.0 HOT 2
- Potential memory leak in arp-scan/arp-scan.c HOT 2
- Command Line Argument for turning off Promiscuous Mode HOT 7
- Feature Request: Output options: Add sorting HOT 6
- "Target list from interface network X netmask Y" is displayed with --plain option HOT 1
- Parallel arp-scan missing devices HOT 2
- Will this reposity be moved to cmake? HOT 2
- how to update `ieee-oui.txt` on macOS? HOT 3
- Add windows support
- Find portable function to get interface MAC address
- Add support for Cisco ISL VLANs in addition to 802.1Q HOT 1
- many hosts respond to single arp packet HOT 4
- Duplicate ARP responses from Intel Wi-Fi 6E AX211 on Windows 11 HOT 1
- Change release tags from lightweight to annotated
- Doesn't work on WSl2 NAT network mode HOT 1
- file permission denied HOT 1
- Replace the obsolete gettimeofday() with the higher precision clock_gettime()
- Replace POSIX hash api (hcreate, hsearch) with a more flexible hash table solution
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