Signature Detail
Short Name |
DHCP:OPT:INV-OPT-LEN |
|---|---|
Severity |
High |
Recommended |
No |
Category |
DHCP |
Release Date |
2003/04/22 |
Update Number |
1213 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
DHCP: Invalid Option Length
This protocol anomaly triggers when it detects a DHCP option that has an invalid length. RFC-1533 and RFC-1497 specify standard lengths for DHCP options.
Extended Description
A DHCP datagram in which the options field contains a data-size octet that does not match the allowable ranges indicated by RFC 1533 specifications constitutes a protocol anomaly. Detection of this condition could indicate a network configuration error, or that an attempt to inject malformed DHCP datagrams is underway.
References