>Synopsis: rtadvd prints error on receiving RA with Route Information
>Category: system
>Environment:
System : OpenBSD 5.5
Details : OpenBSD 5.5 (GENERIC.MP) #0: Thu May 1 22:21:58 UTC 2014
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
In my case if route information is specified in configuration file
(rtprefix field) rtadvd prints 'unknown ND option(type 24)' every time
it
recieves it's own RA packet.
/etc/rtadvd.conf
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tun0:\
:addr="fd26:5858:14c8:1::":prefixlen#64:\
:rtprefix="fd26:5858:14c8::":rtplen#48:
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rtadvd output
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RA timer on tun0 is set to 16:0
set timer to 15.998724. waiting for inputs or timeout
RA timer on tun0 is expired
send RA on tun0, # of waitings = 0
RA timer on tun0 is set to 16:0
set timer to 16.0. waiting for inputs or timeout
RA received from fe80::fce1:baff:fed1:4ae4 on tun0
unknown ND option(type 24)
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tcpdump output
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tcpdump: listening on tun0, link-type EN10MB
tcpdump: WARNING: compensating for unaligned libpcap packets
09:19:23.309831 fe80::fce1:baff:fed1:4ae4 > ff02::1: icmp6: router
advertisement
09:19:39.497311 fe80::fce1:baff:fed1:4ae4 > ff02::1: icmp6: router
advertisement
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>How-To-Repeat:
1. In configuration file specify any rtprefix to advertise.
2. Run rtadvd.
3. Wait for the first transmission.
>Fix:
No.
