OPNsense Forum
Archive => 17.7 Legacy Series => Topic started by: lrosenman on August 08, 2017, 08:01:33 pm
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I've just moved into a nice new house with ATT Fiber. ATT'S RG (Pace 5268AC) doesn't pass IPv6 through to the DMZ+ host (will be the firewall). It *DOES* however allow IPV6 to other devices connected to it's own switch.
Should I be able to route IPv6 from another interface to my LAN and do Firewall stuff? My suspicion is YES, but I'm not near it right now.
Basically the setup:
+--->WAN port on OPNSENSE (IPv4/DMZ+)----+
ATTONT->ONT PORT on 5268AC ---| |----> LAN port on OPNSENSE
+--->OPT1 port on OPNSENSE (IPv6/DHCPv4) .+
Would this allow me to have dual stacked hosts on the LAN ?
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No go. If I set WAN to SLAAC, remove the 2nd interface to the 5268AC, I can ping6 from the FW, but can NOT get IPv6 to work on the LAN.
see my post to freebsd-net@FreeBSD.org.
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Perhaps I'm being a bit dumb here but why do you have OPT1 & the WAN port connected to the switch on your ATT device, urely it should be just the WAN port? The DMZ & the LAN ports are internal IPs on the OPNsense device.
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it was a hack that didn't work out.
Now what I have is:
ATTONT-> ONT Port on 5268AC
5268AC ETH1 -> WAN port on OpnSense
LAN port on OpnSense -> my LAN
The 5268AC is set in DMZ+ mode for the OPNSense MAC
The WAN port on OPNSense is set for SLAAC (for v6) and DHCP (for V4)
ping6 from within the FW works fine.
if I put a static V6 address on the LAN port, and have radvd running, my LAN devices get a IPV6 address, but no IPv6 connectivity.
What am I missing?
(here's the post I made to freebsd-net with more details):
I just moved into a brand new house, and it has ATT Fiber. I have their
gateway (Pace/Arris 5268AC) in DMZ+ mode with an OPNsense (FreeBSD 11)
Firewall Router as the DMZ Host.
I can get IPv6 on the router / FW:
root@home-fw:~ # ping6 ipv6.google.com
PING6(56=40+8+8 bytes) 2602:304:cfaf:f750:242:43ff:feac:29c --> 2607:f8b0:4000:812::200e
16 bytes from 2607:f8b0:4000:812::200e, icmp_seq=0 hlim=55 time=10.084 ms
16 bytes from 2607:f8b0:4000:812::200e, icmp_seq=1 hlim=55 time=10.103 ms
^C
--- ipv6.l.google.com ping6 statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 10.084/10.093/10.103/0.010 ms
root@home-fw:~ # ifconfig
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=42098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,VLAN_HWTSO>
ether 00:42:43:ac:02:9c
inet6 fe80::242:43ff:feac:29c%em0 prefixlen 64 scopeid 0x1
inet6 2602:304:cfaf:f750:242:43ff:feac:29c prefixlen 64 autoconf
inet 76.250.255.117 netmask 0xfffffc00 broadcast 76.250.255.255
nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=42098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,VLAN_HWTSO>
ether 00:42:43:ac:02:9d
inet6 fe80::242:43ff:feac:29d%em1 prefixlen 64 scopeid 0x2
inet6 2602:304:cfaf:f751::1 prefixlen 64
inet 192.168.200.11 netmask 0xfffffc00 broadcast 192.168.203.255
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
em2: flags=8c02<BROADCAST,OACTIVE,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=4219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC,VLAN_HWTSO>
ether 00:42:43:ac:02:9e
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: no carrier
em3: flags=8c02<BROADCAST,OACTIVE,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=4219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC,VLAN_HWTSO>
ether 00:42:43:ac:02:9f
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: no carrier
enc0: flags=0<> metric 0 mtu 1536
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
groups: enc
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x6
inet 127.0.0.1 netmask 0xff000000
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
groups: lo
pflog0: flags=100<PROMISC> metric 0 mtu 33160
groups: pflog
pfsync0: flags=0<> metric 0 mtu 1500
groups: pfsync
syncpeer: 0.0.0.0 maxupd: 128 defer: off
root@home-fw:~ # ndp -a
Neighbor Linklayer Address Netif Expire S Flags
fe80::f6f5:d8ff:fedb:e124%em1 f4:f5:d8:db:e1:24 em1 23h58m15s S
fe80::20d:5dff:fe10:b4fb%em1 00:0d:5d:10:b4:fb em1 23h52m14s S
2602:304:cfaf:f751::1 00:42:43:ac:02:9d em1 permanent R
fe80::f6f5:d8ff:fead:65f4%em1 f4:f5:d8:ad:65:f4 em1 23h59m58s S
fe80::230:48ff:fecf:2b1c%em1 00:30:48:cf:2b:1c em1 23h53m48s S
fe80::f6f5:d8ff:feae:4136%em1 f4:f5:d8:ae:41:36 em1 23h58m8s S
2602:304:cfaf:f751:c412:15dc:8924:30d7 68:5b:35:9f:90:21 em1 23h55m0s S
fe80::f6f5:d8ff:feac:48d0%em1 f4:f5:d8:ac:48:d0 em1 23h59m35s S
fe80::242:43ff:feac:29d%em1 00:42:43:ac:02:9d em1 permanent R
fe80::f6f5:d8ff:fec9:776e%em1 f4:f5:d8:c9:77:6e em1 23s R
fe80::1842:632e:39ae:76d3%em1 68:5b:35:9f:90:21 em1 23h56m26s S
fe80::5a9c:fcff:fe0b:6e07%em1 58:9c:fc:0b:6e:07 em1 23h59m59s S
fe80::f6f5:d8ff:fedf:11ec%em1 f4:f5:d8:df:11:ec em1 23h58m8s S
2602:304:cfaf:f751:d7:b8ff:fe51:f200 02:d7:b8:51:f2:00 em1 12s R
fe80::d7:b8ff:fe51:f200%em1 02:d7:b8:51:f2:00 em1 7s R
2602:304:cfaf:f750::1 d4:b2:7a:9e:cf:05 em0 23h56m55s S R
2602:304:cfaf:f750:230:48ff:fecf:2b1c (incomplete) em0 expired I 3
fe80::d6b2:7aff:fe9e:cf05%em0 d4:b2:7a:9e:cf:05 em0 9s R R
2602:304:cfaf:f750:242:43ff:feac:29c 00:42:43:ac:02:9c em0 permanent R
fe80::242:43ff:feac:29c%em0 00:42:43:ac:02:9c em0 permanent R
root@home-fw:~ #
ATT uses 6RD:
6rd IPv6 Internet Connection Type Value
Default Gateway 2602:300:c533:1510::1
6rd BR 12.83.49.81
6rd Prefix 2602:300::/28
6rd Delegated Prefix 2602:304:cfaf:f750::/60
6rd MTU 1472
How can I extend this to the LAN?
I currently have the LAN defined with an address out of subnet 1.
and if I have my Mac or FreeBSD box SLAAC, the IPv6 packets do not traverse to the
internet.
If I tcpdump the LAN interface, I see the packets enter, but nothing leaves.
Anyone have an idea on what I'm missing here?
(or is the Pace/Arris box getting in the way?
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Anyone?
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I am playing with this myself, and I still trying to learn the new world of IPv6 at the same time.
Here is what I have so far:
IP Passthrough setup on my ATT NVG589 Gateway.
On OPNsense WAN
-IPv4 set to DHCP
-IPv6 set to DHCPv6
On OPNsense LAN
-IPv4 set static 192.168. address
-IPv6 set to Track Interface "WAN"
On WAN I get a routable IPv4 and IPv6 address. On LAN I have my Static RFC1918 address and I get a routable IPv6 address from the delegated prefix listed on the router.
Now that I have this setup and the /64 appears to be properly delegated to my LAN, I need to figure out to my clients will get addresses. not sure if they should be using SLAAC or if I should configured DHCPv6 on OPNsense.
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Almost forgot, to get the delegated address on my LAN I had to enable "Directly send SOLICIT" on WAN.
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I get addresses delegated to the lan but they do *NOT* work. My suspicion is that the 5268AC doesn't really pass *EVERYTHING* to the DMZ+ device.
ATT Support has been exactly *USELESS*
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Ok, game over:
notice Aug 11 06:25:31
IN=br1 MAC=d4:b2:7a:9e:cf:04 SRC=184.105.253.10 DST=76.250.255.117 LEN=76 TTL=248 PROTO=41 Drop all traffic not from the border relay
I set up a HE.net tunnel, and it doesn't work either in DMZ+
Above is a smoking gun.
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Got ATT to swap me to a Arris NVG899 Gateway, and all works with pfSense. OpnSense has issues with the 6rd setup.
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Sure, it works with OPNsense 16.7 on FreeBSD 10.3. ;)
6rd is a pfSense patch that never made it to FreeBSD so it is currently not available for FreeBSD 11.0, because 2.3 is still based on FreeBSD 10.3.
Cheers,
Franco