Bug 116110
Summary: | UDP Broadcast Checksum Error | ||||||||
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Product: | [Fedora] Fedora | Reporter: | Paul Black <paul.0000.black> | ||||||
Component: | kernel | Assignee: | Arjan van de Ven <arjanv> | ||||||
Status: | CLOSED CURRENTRELEASE | QA Contact: | Brian Brock <bbrock> | ||||||
Severity: | medium | Docs Contact: | |||||||
Priority: | medium | ||||||||
Version: | rawhide | CC: | lxin | ||||||
Target Milestone: | --- | ||||||||
Target Release: | --- | ||||||||
Hardware: | i386 | ||||||||
OS: | Linux | ||||||||
Whiteboard: | |||||||||
Fixed In Version: | Doc Type: | Bug Fix | |||||||
Doc Text: | Story Points: | --- | |||||||
Clone Of: | Environment: | ||||||||
Last Closed: | 2004-02-19 14:23:08 UTC | Type: | --- | ||||||
Regression: | --- | Mount Type: | --- | ||||||
Documentation: | --- | CRM: | |||||||
Verified Versions: | Category: | --- | |||||||
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
Cloudforms Team: | --- | Target Upstream Version: | |||||||
Embargoed: | |||||||||
Bug Depends On: | |||||||||
Bug Blocks: | 114961 | ||||||||
Attachments: |
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Description
Paul Black
2004-02-18 11:25:00 UTC
I'm seeing a similar problem at install time. I'm doing an NFS network install started with PXE, trying to get a DHCP address. Bad checksums from anaconda's DHCP client. I will attach a packet capture from Ethereal. Checksum is 0x0145, should be 0xbe43 according to the sniffer. Intel 845 motherboard, 3c905C-TX/TX-M Tornado network card. Pentium 4 1.6 GHz stepping 2. Hardware vendor is Gateway. I successfully installed the system using a static IP at install time. The creepy thing with this system is that post-install, if I clear the client leases files and use DHCP to bring the interface up, it works. The initial DHCP DISCOVER broadcast packet has a correct checksum then, unlike at install time. Created attachment 97810 [details]
Captured DHCP DISCOVER broadcast with bad UDP checksum
Created attachment 97813 [details]
Second DHCP DISCOVER broadcast with bad checksum
Aha! This bad DHCP DISCOVER packet sent from the same box has the *same* bad
checksum, 0x0145 (should be 0xc538 according to Ethereal). The only difference
between the packets is the payload's transaction ID field (002E through 0031)
and seconds elapsed field (0032 and 0033).
should be fixed in 2.6.3-1.91 2.6.3-1.91 works for me. This seems to have reappeared: present in 2.6.5-1.351smp. Ethereal shows incorrect UDP checksum when running rup. Seems to be refixed in 2.6.5-1.352smp ... |