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On 4/28/2020 3:17 PM, Chris Adams wrote: > - gateway sends a router solicitation and gets a router advertisement > with "stateful config" set, which tells gateway to do DHCPv6 (but > default route comes from RA) I'm not seeing any outbound IPv6 traffic from my CentOS 7 box on the WAN interface. I do see RA's emitting from the LAN interface, from radvd. Is there

...ld be blocking ping6, traceroute6, and telnet to port 25 on IPv6? >From AT&T host to Linode host: [root at saruman ~]# traceroute6 2600:3c01::f03c:91ff:febc:e22d traceroute to 2600:3c01::f03c:91ff:febc:e22d (2600:3c01::f03c:91ff:febc:e22d), 30 hops max, 80 byte packets 1 2001:1890:1837:5b00::1 (2001:1890:1837:5b00::1) 3.230 ms 3.181 ms 3.137 ms 2 2001:1890:c05:2f3a::ee6e:61cd (2001:1890:c05:2f3a::ee6e:61cd) 6.906 ms 6.901 ms 6.870 ms 3 ok3ca81crs.ipv6.att.net (2001:1890:ff:ffff:12:123:6:98) 8.305 ms 8.254 ms 8.258 ms 4 sffca21crs.ipv6.att.net (2001:1890:ff:ffff:12:122:1...

...ivacy NAME=em2 UUID=fe08c9df-9913-47f5-be8b-47dad168bcc4 DEVICE=em2 ONBOOT=yes IPADDR=12.3.140.156 PREFIX=29 GATEWAY=12.3.140.153 DNS1=127.0.0.1 DOMAIN="mpa.lan dhcp.mpa.lan microprecisionautomation.com" ZONE=external IPV6FORWARDING=yes IPV6_PEERDNS=no # AT&T assigns us 2001:1890:1837:5B00::/56 # we use the 2nd /64 for our DMZ IPV6ADDR_SECONDARIES=2001:1890:1837:5B01::100/64

...S 5ac0: 58 70 0a c8 60 a2 15 60 70 01 50 4d 53 58 a0 07 Xp..`..`p.PMSX.. 5ad0: 50 4d 53 58 76 60 a1 04 70 00 60 86 50 58 53 58 PMSXv`..p.`.PXSX 5ae0: 0a 02 14 0f 5f 50 52 57 00 a4 47 50 52 57 0a 09 ...._PRW..GPRW.. 5af0: 0a 04 14 16 5f 50 52 54 00 a0 0a 50 49 43 4d a4 ...._PRT...PICM. 5b00: 41 52 30 36 a4 50 52 30 36 5b 82 45 0e 52 50 30 AR06.PR06[.E.RP0 5b10: 34 08 5f 41 44 52 0c 03 00 1c 00 5b 80 50 58 43 4._ADR.....[.PXC 5b20: 53 02 0a 40 0a c0 5b 81 4a 05 50 58 43 53 00 00 S.. at ..[.J.PXCS.. 5b30: 40 08 4c 30 53 45 01 00 07 00 08 00 0d 4c 41 53 @.L0SE.......LAS 5b40:...