Date: Tue, 27 Apr 2021 08:37:29 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 248005] nd6 initializes nd_ifinfo->maxmtu = 0 on newly inserted network interfaces Message-ID: <bug-248005-7501-BAVA8mjqy9@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-248005-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-248005-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248005 --- Comment #6 from Andrey V. Elsukov <ae@FreeBSD.org> --- How it worked before patch: # ifconfig vlan1000 create vlandev mce3 vlan 1000 up # ifconfig vlan1000 vlan1000: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 options=1c680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6,NOMAP,TXTLS4,TXTLS6> ether 24:8a:07:b4:32:43 inet6 fe80::268a:7ff:feb4:3243%vlan1000 prefixlen 64 scopeid 0x8 groups: vlan vlan: 1000 vlanpcp: 0 parent interface: mce3 media: Ethernet autoselect <full-duplex,rxpause,txpause> (100GBase-CR4 <full-duplex,rxpause,txpause>) status: active nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> # netstat -Wrnf inet6 | grep vlan1000 fe80::%vlan1000/64 link#8 U 11 9000 vlan1000 fe80::268a:7ff:feb4:3243%vlan1000 link#3 UHS 1 16384 lo0 # ndp -i vlan1000 linkmtu=0, maxmtu=0, curhlim=64, basereachable=30s0ms, reachable=27s, retrans=1s0ms Flags: nud auto_linklocal After this patch: # netstat -Wrnf inet6 | grep vlan1000 fe80::%vlan1000/64 link#8 U 11 1500 vlan1000 fe80::268a:7ff:feb4:3243%vlan1000 link#3 UHS 1 16384 lo0 # ndp -i vlan1000 linkmtu=0, maxmtu=1500, curhlim=64, basereachable=30s0ms, reachable=18s, retrans=1s0ms Flags: nud auto_linklocal -- You are receiving this mail because: You are on the CC list for the bug.
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