A fix is available
APAR status
Closed as program error.
Error description
Martian packets with the loopback (127.0.0.1) address are received on interfaces other than lo0 and processed instead of discarded.
Local fix
Disable checksum offload.
Problem summary
martian packet check is bypassed when checksum offload is enabled. This might cause denial of service or evesdrop. Though driver should drop this kind of packets. But with particula HEA adapter with promiscous mode enabled will just forward such packets to ip layer without any check
Problem conclusion
Move martian packet check before the checksum offload check.
Temporary fix
Comments
APAR Information
APAR number
IV13543
Reported component name
AIX 610 STD EDI
Reported component ID
5765G6200
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2012-01-19
Closed date
2012-01-19
Last modified date
2013-02-27
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX 610 STD EDI
Fixed component ID
5765G6200
Applicable component levels
R610 PSY U849141
UP12/03/14 I 1000
PTF to Fileset Mapping
U849141 bos.net.tcp.client 6.1.6.17
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Document Information
Modified date:
27 February 2013