Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2018:1267
Created attachment 1405691 [details] pcap of server_ipv4 packet Description of problem: udp checksum of packet replied from dns server is error,so the client can't receive the translated address. Version-Release number of selected component (if applicable): ovs2.9 How reproducible: everytime Steps to Reproduce: The dns server can reply packet to correct address.But the guest doesn't ping the ip address translated by dns server.Packet responded by dns server is marked as error in wireshark,it seems the udp checksum is illegal. [root@localhost ~]# uname -a Linux localhost.localdomain 3.10.0-845.el7.x86_64 #1 SMP Mon Feb 5 07:43:47 EST 2018 x86_64 x86_64 x86_64 GNU/Linux [root@localhost ~]# [root@localhost ~]# cat /etc/resolv.conf ; generated by /usr/sbin/dhclient-script nameserver 2001:db8:102::254 [root@localhost ~]# [root@localhost ~]# ping -c10 abc.org 08:46:41.800846 IP6 2001:db8:102::12.50257 > 2001:db8:102::254.53: 34728+ A? abc.org. (25) 08:46:41.801712 IP6 2001:db8:102::254.53 > 2001:db8:102::12.50257: 34728- 1/0/0 A 172.16.102.11 (48) 08:46:46.806007 IP6 2001:db8:102::12.50257 > 2001:db8:102::254.53: 34728+ A? abc.org. (25) 08:46:46.806482 IP6 2001:db8:102::254.53 > 2001:db8:102::12.50257: 34728- 1/0/0 A 172.16.102.11 (48) 08:46:46.810917 IP6 fe80::2de:adff:fe01:101 > 2001:db8:102::254: ICMP6, neighbor solicitation, who has 2001:db8:102::254, length 32 08:46:46.811502 IP6 2001:db8:102::254 > fe80::2de:adff:fe01:101: ICMP6, neighbor advertisement, tgt is 2001:db8:102::254, length 32 08:46:51.811221 IP6 2001:db8:102::12.38529 > 2001:db8:102::254.53: 27956+ A? abc.org.localdomain. (37) 08:46:56.816346 IP6 2001:db8:102::12.38529 > 2001:db8:102::254.53: 27956+ A? abc.org.localdomain. (37) ping: abc.org: Name or service not known [root@localhost ~]# ping6 -c10 abc.org 08:48:39.284912 IP6 2001:db8:102::12.53408 > 2001:db8:102::254.53: 36782+ AAAA? abc.org. (25) 08:48:39.285432 IP6 2001:db8:102::254.53 > 2001:db8:102::12.53408: 36782- 1/0/0 AAAA 2001:db8:102::11 (60) 08:48:44.289996 IP6 2001:db8:102::12.53408 > 2001:db8:102::254.53: 36782+ AAAA? abc.org. (25) 08:48:44.290299 IP6 2001:db8:102::254.53 > 2001:db8:102::12.53408: 36782- 1/0/0 AAAA 2001:db8:102::11 (60) 08:48:44.298952 IP6 fe80::2de:adff:fe01:101 > 2001:db8:102::254: ICMP6, neighbor solicitation, who has 2001:db8:102::254, length 32 08:48:44.299438 IP6 2001:db8:102::254 > fe80::2de:adff:fe01:101: ICMP6, neighbor advertisement, tgt is 2001:db8:102::254, length 32 08:48:49.295221 IP6 2001:db8:102::12.45208 > 2001:db8:102::254.53: 10057+ AAAA? abc.org.localdomain. (37) 08:48:54.300322 IP6 2001:db8:102::12.45208 > 2001:db8:102::254.53: 10057+ AAAA? abc.org.localdomain. (37) ping: abc.org: Name or service not known [root@localhost ~]# Additional info: I have attached the pcap packet,please check it,thanks.