Bug 228394 - ndp -s proxy is out of order
Summary: ndp -s proxy is out of order
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 12.1-RELEASE
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-05-21 12:30 UTC by bugs.freebsd.org
Modified: 2020-07-03 10:28 UTC (History)
2 users (show)

See Also:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description bugs.freebsd.org 2018-05-21 12:30:22 UTC 
Example:

ifconfig ext1
ext1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=6c07ba<TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
        ether 52:54:00:16:bc:83
        hwaddr 52:54:00:16:bc:83
        inet6 fe80::5054:ff:fe16:bc83%ext1 prefixlen 64 scopeid 0x2
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        media: Ethernet 10Gbase-T <full-duplex>
        status: active

ndp -an
Neighbor                             Linklayer Address  Netif Expire    S Flags
fe80::5054:ff:fe16:bc83%ext1         52:54:00:16:bc:83   ext1 permanent R

ndp -s fe80::1111%ext1 52:54:00:16:bc:83 proxy

ndp -an
Neighbor                             Linklayer Address  Netif Expire    S Flags
fe80::1111%ext1                      52:54:00:16:bc:83   ext1 permanent R p
fe80::5054:ff:fe16:bc83%ext1         52:54:00:16:bc:83   ext1 permanent R

tcpdump -nnn -i ext1 ip6
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ext1, link-type EN10MB (Ethernet), capture size 262144 bytes
12:26:14.785750 IP6 fe80::5054:ff:fe8c:d393 > ff02::1:ff00:1111: ICMP6, neighbor solicitation, who has fe80::1111, length 32
12:26:15.845482 IP6 fe80::5054:ff:fe8c:d393 > ff02::1:ff00:1111: ICMP6, neighbor solicitation, who has fe80::1111, length 32
12:26:16.903501 IP6 fe80::5054:ff:fe8c:d393 > ff02::1:ff00:1111: ICMP6, neighbor solicitation, who has fe80::1111, length 32
12:26:17.963626 IP6 fe80::5054:ff:fe8c:d393 > ff02::1:ff00:1111: ICMP6, neighbor solicitation, who has fe80::1111, length 32


Host does not answer with neighbor advertisement message.
Comment 1 Samy Mahmoudi 2020-07-03 08:52:12 UTC 
I can still reproduce this on FreeBSD-12.1-RELEASE (on a vultr VPS).
Comment 2 Samy Mahmoudi 2020-07-03 08:57:00 UTC 
Could someone change the field 'Version' of this bug from 11.1-RELEASE to any?
Comment 3 bugs.freebsd.org 2020-07-03 09:58:22 UTC 
There's no 'ANY' option of this field.
It was changed to 12.1-RELEASE.
Comment 4 Samy Mahmoudi 2020-07-03 10:28:39 UTC 
(In reply to bugs.freebsd.org from comment #3)
Oops...

Thanks for the change ;-)