Re: ICMP router advertisement (ipv4)

2023-04-12 Thread Dan Ritter
Anssi Saari wrote: > If "public IPv4 address" is not understood by you it can also be > formulated as "the OP has an RFC1918 IPv4 address which is not routable > on the public internet and hence a 6to4 tunnel can't work for him." Oh, it's hidden behind CGNAT. No, that won't work. My mistake.

Re: ICMP router advertisement (ipv4)

2023-04-12 Thread Anssi Saari
Dan Ritter writes: > Tunnelbroker.net can use a dynamic update feature so that the > static IPv6 address is only momentarily interrupted when the > underlying v4 address is changed out. This is quite reliable if > you hook it to the the DHCP client's post-up function. I don't understand the

Re: ICMP router advertisement (ipv4)

2023-04-11 Thread Dan Ritter
Anssi Saari wrote: > Jeremy Ardley writes: > > > Your only option seems to be to sign up with some external IPv6 > > provider. This service (I've never used it so beware) says it gives > > you ipv6 etc for free. What their business model is I'm not sure > > https://tunnelbroker.net/ > > I

Re: ICMP router advertisement (ipv4)

2023-04-11 Thread Anssi Saari
Jeremy Ardley writes: > Your only option seems to be to sign up with some external IPv6 > provider. This service (I've never used it so beware) says it gives > you ipv6 etc for free. What their business model is I'm not sure > https://tunnelbroker.net/ I doubt that's going to work for him

Re: ICMP router advertisement (ipv4)

2023-04-11 Thread debian-user
Jeremy Ardley wrote: > On 11/4/23 11:40, Tim Woodall wrote: > > > > > > My googling suggests that a superhub or hub 5 can be switched to > > 'modem only' mode but I've got a hub 6 which doesn't have that > > option. > >> > >>   Virgin Media: Virgin Media is the largest cable broadband > >>

Re: ICMP router advertisement (ipv4)

2023-04-10 Thread Jeremy Ardley
On 11/4/23 11:40, Tim Woodall wrote: My googling suggests that a superhub or hub 5 can be switched to 'modem only' mode but I've got a hub 6 which doesn't have that option.   Virgin Media: Virgin Media is the largest cable broadband provider   in the UK, operating its own network separate

Re: ICMP router advertisement (ipv4)

2023-04-10 Thread Tim Woodall
On Tue, 11 Apr 2023, Jeremy Ardley wrote: On 11/4/23 02:19, Tim Woodall wrote: Unfortunately, I don't seem to have that option any more. My cable modem appears only to expose a layer 4 connection. Previous version of my router appear to have a "modem mode" but that doesn't exist in my

Re: ICMP router advertisement (ipv4)

2023-04-10 Thread Jeremy Ardley
On 11/4/23 02:19, Tim Woodall wrote: Unfortunately, I don't seem to have that option any more. My cable modem appears only to expose a layer 4 connection. Previous version of my router appear to have a "modem mode" but that doesn't exist in my version. Here in Australia we have a national

Re: ICMP router advertisement (ipv4)

2023-04-10 Thread Tim Woodall
On Mon, 10 Apr 2023, Jeremy Ardley wrote: On 10/4/23 12:49, Tim Woodall wrote: And it doesn't forward packets from new ips either, it just silently drops them. I don't know how the router learns ips but I suspect it's something to do with DAD, I don't know about your router specifically,

Re: ICMP router advertisement (ipv4)

2023-04-09 Thread Jeremy Ardley
On 10/4/23 12:49, Tim Woodall wrote: And it doesn't forward packets from new ips either, it just silently drops them. I don't know how the router learns ips but I suspect it's something to do with DAD, I don't know about your router specifically, but here in Australia the Network

Re: ICMP router advertisement (ipv4)

2023-04-09 Thread Tim Woodall
On Mon, 10 Apr 2023, Tim Woodall wrote: On Mon, 10 Apr 2023, Jeremy Ardley wrote: On 10/4/23 11:02, Tim Woodall wrote: My firewall has a single /128 acquired via SLAAC and the RA from the router. My entire network is masqueraded through that single IP. What does the RA contain? Typically

Re: ICMP router advertisement (ipv4)

2023-04-09 Thread Tim Woodall
On Mon, 10 Apr 2023, Jeremy Ardley wrote: On 10/4/23 11:02, Tim Woodall wrote: My firewall has a single /128 acquired via SLAAC and the RA from the router. My entire network is masqueraded through that single IP. What does the RA contain? Typically on connection to an IPv6 capable ISP you

Re: ICMP router advertisement (ipv4)

2023-04-09 Thread Jeremy Ardley
On 10/4/23 11:02, Tim Woodall wrote: My firewall has a single /128 acquired via SLAAC and the RA from the router. My entire network is masqueraded through that single IP. What does the RA contain? Typically on connection to an IPv6 capable ISP you will get assigned a single /128 from their

Re: ICMP router advertisement (ipv4)

2023-04-09 Thread Tim Woodall
On Sun, 9 Apr 2023, Michel Verdier wrote: Le 9 avril 2023 Tim Woodall a ?crit : Apr 9 06:27:48 ... IN=isp OUT= MAC=... SRC=1.0.168.192 DST=224.0.0.1 ... PROTO=ICMP TYPE=9 CODE=0 This log is generated on your host? It comes directly from syslog or from a reporting tool? I don't get a

Re: ICMP router advertisement (ipv4)

2023-04-09 Thread Michel Verdier
Le 9 avril 2023 Tim Woodall a écrit : >>> Apr 9 06:27:48 ... IN=isp OUT= MAC=... SRC=1.0.168.192 DST=224.0.0.1 ... >>> PROTO=ICMP TYPE=9 CODE=0 This log is generated on your host? It comes directly from syslog or from a reporting tool? > I don't get a routable IPv4 address at all. My router

Re: ICMP router advertisement (ipv4)

2023-04-09 Thread Tim Woodall
On Sun, 9 Apr 2023, Michel Verdier wrote: Le 9 avril 2023 Tim Woodall a ?crit : They're not causing me any issues but is it expected that the IP address is reversed in these messages? Apr 9 06:27:48 ... IN=isp OUT= MAC=... SRC=1.0.168.192 DST=224.0.0.1 ... PROTO=ICMP TYPE=9 CODE=0 No IP

Re: ICMP router advertisement (ipv4)

2023-04-09 Thread Michel Verdier
Le 9 avril 2023 Tim Woodall a écrit : > They're not causing me any issues but is it expected that the IP address > is reversed in these messages? > > Apr 9 06:27:48 ... IN=isp OUT= MAC=... SRC=1.0.168.192 DST=224.0.0.1 ... > PROTO=ICMP TYPE=9 CODE=0 No IP are never reversed in

ICMP router advertisement (ipv4)

2023-04-09 Thread Tim Woodall
They're not causing me any issues but is it expected that the IP address is reversed in these messages? Apr 9 06:27:48 ... IN=isp OUT= MAC=... SRC=1.0.168.192 DST=224.0.0.1 ... PROTO=ICMP TYPE=9 CODE=0 These are coming from my ISPs router - there's no obvious way to turn them off (or to