[Bug 210340] ipv6 alias, don't respond after a time

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210340

            Bug ID: 210340
           Summary: ipv6 alias, don't respond after a time
           Product: Base System
           Version: 10.3-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: fernando at wekers.org

Dear all, 


I have 5 ipv6 provided from my ISP, after some time, one or more alias dont
respond anymore.

only work again if i have run manualy, and try two or three times  
remove and add again

$ ifconfig em0 inet6 2604:1x0::fd8:84xx -alias
$ ifconfig em0 inet6 2604:1x0::fd8:84xx prefixlen 48 alias


i have run tcpdump and show that only one of all alias did "neighbor
solicitation"

*********************
tcpdump: listening on em0, link-type EN10MB (Ethernet), capture size 65535
bytes
23:00:41.092219 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32)
2604:1x0::fd8:8xxx > 2604:1x0::1: [icmp6 sum ok] ICMP6, neighbor solicitation,
length 32, who has 2604:1x0::1
          source link-address option (1), length 8 (1): 00:16:3c:ab:ed:29
            0x0000:  0016 3cab ed29

23:00:41.102175 IP6 (class 0xc0, hlim 255, next-header ICMPv6 (58) payload
length: 32) 2604:1x0::1 > 2604:1x0::fd8:8xxx: [icmp6 sum ok] ICMP6, neighbor
advertisement, length 32, tgt is 2604:1x0::1, Flags [router, solicited,
override]
          destination link-address option (2), length 8 (1): 00:0c:db:f5:6d:00
            0x0000:  000c dbf5 6d00
*********************


------------
ndp -an
Neighbor                             Linklayer Address  Netif Expire    S Flags
2604:1x0::b482:cxx                   00:16:3c:ab:ed:xx    em0 permanent R 
2604:1x0::1                          00:0c:db:f5:6d:xx    em0 11s       R R
2604:1x0::687f:c8xx                  00:16:3c:ab:ed:xx    em0 permanent R 
2604:1x0::2369:68xx                  00:16:3c:ab:ed:xx    em0 permanent R 
fe80::2xx:3cff:feab:ed29%em0         00:16:3c:ab:ed:xx    em0 permanent R 
2604:1x0::fd8:84xx                   00:16:3c:ab:ed:xx    em0 permanent R 
2604:1x0::d0ae:20xx                  00:16:3c:ab:ed:xx    em0 permanent R 
------------


rc.conf
**********
ipv6_activate_all_interfaces="YES"
ifconfig_em0_ipv6="inet6 -ifdisabled accept_rtadv"
ip6addrctl_verbose="NO"
ip6addrctl_enable="YES"
ip6addrctl_policy="ipv6_prefer"
rtsold_enable="YES"
rtsold_flags="-aF"
ipv6_cpe_wanif="em0"
ipv6_gateway_enable="YES"

Ifconfig_em0_alias2="inet6 2604:1x0::b482:cxx prefixlen 48"
ipv6_defaultrouter="2604:1x0::1"
ifconfig_em0_alias3="inet6 2604:1x0::d0ae:20xx prefixlen 48"  
         "" remain aliases..
**********


Regards,
Fernando Gilli

-- 
You are receiving this mail because:
You are the assignee for the bug.