Bug 1801734
| Summary: | [RFE][OVN] OVN DHCP Server ignores DHCPINFORM messages from client | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux Fast Datapath | Reporter: | Jakub Libosvar <jlibosva> |
| Component: | ovn2.11 | Assignee: | Numan Siddique <nusiddiq> |
| Status: | CLOSED ERRATA | QA Contact: | ying xu <yinxu> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | RHEL 8.0 | CC: | amuller, apevec, astupnik, ctrautma, ekuris, fhallal, lhh, majopela, nusiddiq, rkhan, scohen |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | All | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1801258 | Environment: | |
| Last Closed: | 2020-08-18 11:23:25 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: | 1801258 | ||
| Bug Blocks: | |||
|
Description
Jakub Libosvar
2020-02-11 14:53:32 UTC
verified on the latest version:
# rpm -qa|grep ovn
ovn2.11-2.11.1-53.el8fdp.x86_64
ovn2.11-host-2.11.1-53.el8fdp.x86_64
ovn2.11-central-2.11.1-53.el8fdp.x86_64
topo:
vm1-------ls-----------vm2
send inform packet:
sendp(Ether(src="00:00:00:00:00:02", dst="00:de:ad:ff:01:02")/IP(src='42.42.42.3',dst='42.42.42.254')/UDP(sport=68,dport=67)/BOOTP(ciaddr='42.42.42.3',chaddr=hw,xid=random.randint(0, 0xFFFFFFFF),)/DHCP(options=[("message-type","inform"),"end"]),iface="vm2")
cat /var/log/ovn/ovn-controller.log|grep DHCPINFORM'
2020-07-14T07:59:29.949Z|00010|pinctrl(ovn_pinctrl0)|INFO|DHCPINFORM from 00:00:00:00:00:01 42.42.42.2
2020-07-14T08:00:00.189Z|00012|pinctrl(ovn_pinctrl0)|INFO|DHCPINFORM from 00:00:00:00:00:01 42.42.42.2
# tcpdump -r dhcp.pcap -nn -v
reading from file dhcp.pcap, link-type EN10MB (Ethernet)
22:03:15.310978 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 16) fe80::200:ff:fe00:2 > ff02::2: [icmp6 sum ok] ICMP6, router solicitation, length 16
source link-address option (1), length 8 (1): 00:00:00:00:00:02
22:03:19.687679 IP (tos 0x0, ttl 64, id 1, offset 0, flags [none], proto UDP (17), length 272)
42.42.42.3.68 > 42.42.42.254.67: BOOTP/DHCP, Request from 00:00:00:00:00:02, length 244, xid 0x6d00363e, Flags [none]
Client-IP 42.42.42.3
Client-Ethernet-Address 00:00:00:00:00:02
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Inform
22:03:19.689269 IP (tos 0x0, ttl 64, id 1, offset 0, flags [none], proto UDP (17), length 292)
42.42.42.254.67 > 42.42.42.3.68: BOOTP/DHCP, Reply, length 264, xid 0x6d00363e, Flags [none]
Client-IP 42.42.42.3
Client-Ethernet-Address 00:00:00:00:00:02
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: ACK
Default-Gateway Option 3, length 4: 42.42.42.254
Server-ID Option 54, length 4: 42.42.42.254
send release packet:
sendp(Ether(src="00:00:00:00:00:01", dst="00:de:ad:ff:01:02")/IP(src='42.42.42.2',dst='42.42.42.254')/UDP(sport=68,dport=67)/BOOTP(ciaddr='42.42.42.2',chaddr=hw,xid=random.randint(0, 0xFFFFFFFF),)/DHCP(options=[("message-type","release"),("server_id",'42.42.42.254'),("client_id",chr(1),hw),"end"]),iface="vm1")
#cat /var/log/ovn/ovn-controller.log|grep DHCPRELEASE'
2020-07-15T02:38:50.397Z|00008|pinctrl(ovn_pinctrl0)|INFO|DHCPRELEASE 00:00:00:00:00:01 42.42.42.2
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 (ovn2.11 bug fix and enhancement update), 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/RHBA-2020:3487 |