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Bug 99099 - libpcap-0.9.3 released, chance for fixing important stuff
Summary: libpcap-0.9.3 released, chance for fixing important stuff
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Library (show other bugs)
Hardware: All Linux
: High major (vote)
Assignee: Gentoo Netmon project
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-07-15 05:11 UTC by Alexander Stoll
Modified: 2005-07-15 06:25 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Alexander Stoll 2005-07-15 05:11:25 UTC
The new release gives the chance to fix important stuff libpcap-0.8.3 suffers.
The fresh release of 0.9.3 prevented me filing a bug for 0.8.3 which is the
current stable and ONLY avialable version of libpcap in portage and know it is a
good opportunity to fix current issues.
Precisely, the drop of the "inbound" "outbound" keywords for the ppp protocol in
version 0.8.3 is a real pain.
If you are a modem/ISDN user for which is no flatrate / traffic volume paid
online access available and get a dynamic IP from your provider, DoD is nearly
impossible since no reliable idle detection of the link is possible.
Todays dial-in pools are flooded with p2p traffic and if you get the ip of a
former busy node in the p2p net, huge amounts of requests hit the host. With a
dynamically assigned IP, there is NO WAY to install a "active-filter" for the
ppp link which considers only wanted traffic to keep the link up without the
"inbound" "outbound" keywords, because you can never predict your dynamic ip
which is assigned via ppp handshake to construct a filter expression which
considers only leaving packets as link activity.
I
Comment 1 Alexander Stoll 2005-07-15 05:11:25 UTC
The new release gives the chance to fix important stuff libpcap-0.8.3 suffers.
The fresh release of 0.9.3 prevented me filing a bug for 0.8.3 which is the
current stable and ONLY avialable version of libpcap in portage and know it is a
good opportunity to fix current issues.
Precisely, the drop of the "inbound" "outbound" keywords for the ppp protocol in
version 0.8.3 is a real pain.
If you are a modem/ISDN user for which is no flatrate / traffic volume paid
online access available and get a dynamic IP from your provider, DoD is nearly
impossible since no reliable idle detection of the link is possible.
Todays dial-in pools are flooded with p2p traffic and if you get the ip of a
former busy node in the p2p net, huge amounts of requests hit the host. With a
dynamically assigned IP, there is NO WAY to install a "active-filter" for the
ppp link which considers only wanted traffic to keep the link up without the
"inbound" "outbound" keywords, because you can never predict your dynamic ip
which is assigned via ppp handshake to construct a filter expression which
considers only leaving packets as link activity.
I´ve heard the post 0.8.3-release cvs version of libpcap already got back
support for those keywords, I estimate that 0.9.3 has it as well...
However, it should be made shure and tested that the new version supports this
and if needed patched in.

Reproducible: Always
Steps to Reproduce:
1. configure a ppp link with "active filter" expression containing
"inbound/outbound" keywords
2. pppd could not establish filter because of lacking support for ppp protocol
in libpcap 0.8.x

Actual Results:  
no reliable dial on demand for ppp links with dynamically assigned IP

Expected Results:  
reliable line activity detection via active filter expression for ppp links
Comment 2 Aaron Walker (RETIRED) gentoo-dev 2005-07-15 06:25:04 UTC
I've bumped libpcap to 0.9.3.  Test it and if that bug persists, submit a
separate  bug.  Thanks.