I'm running proxmox 7.1-12 with the following network config (I have redacted public IPs):
And my ip6 routes:
With this config, I can access IPv6 sites fine and they report my IP as xxxx:xxxx:7::1, as expected. However, I cannot ping or communicate with the gateway. When running tcpdump, I can see packets received from the gateway however I dont see any entries at all for packets going to the gateway, even when i ping it or try to establish a connection with it (ping6ing the gateway result in no output in both tcpdump and in ping6).
This is especially confusing as traceroute6 clearly shows I am traversing it:
Here is the tcpdump output for the traceroute: https://pastebin.com/wbqVhF0p
The IPv6 addresses and gateway are provided by my upstream so I can peer with them and announce my own IPv6 addresses. IPv4 is working fine.
Any ideas why I cant reach the gateway?
Code:
auto lo
iface lo inet loopback
iface enp35s0 inet manual
auto vmbr0
iface vmbr0 inet static
address xxx.xxx.xxx.66/29
gateway xxx.xxx.xxx.65
bridge-ports enp35s0
bridge-stp off
bridge-fd 0
iface vmbr0 inet6 static
address xxxx:xxxx:7::1/64
gateway xxxx:xxxx:7::
auto vmbr1
iface vmbr1 inet static
address 10.0.0.1/24
bridge-ports none
bridge-stp off
bridge-fd 0
post-up echo 1 > /proc/sys/net/ipv4/ip_forward
post-up iptables -t nat -A POSTROUTING -s '10.0.0.0/24' -o vmbr0 -j MASQUERADE
post-down iptables -t nat -D POSTROUTING -s '10.0.0.0/24' -o vmbr0 -j MASQUERADEAnd my ip6 routes:
Code:
::1 dev lo proto kernel metric 256 pref medium
xxxx:xxxx:7::/64 dev vmbr0 proto kernel metric 256 pref medium
fe80::/64 dev vmbr0 proto kernel metric 256 pref medium
fe80::/64 dev vmbr1 proto kernel metric 256 pref medium
default via xxxx:xxxx:7:: dev vmbr0 proto kernel metric 1024 onlink pref mediumWith this config, I can access IPv6 sites fine and they report my IP as xxxx:xxxx:7::1, as expected. However, I cannot ping or communicate with the gateway. When running tcpdump, I can see packets received from the gateway however I dont see any entries at all for packets going to the gateway, even when i ping it or try to establish a connection with it (ping6ing the gateway result in no output in both tcpdump and in ping6).
This is especially confusing as traceroute6 clearly shows I am traversing it:
Code:
traceroute to ipv6.icanhazip.com (2606:4700::6812:7361), 30 hops max, 80 byte packets
1 xxxx:xxxx:7:: (xxxx:xxxx:7::) 0.100 ms 0.088 ms 0.083 ms
2 e0-3.core1.lon6.he.net (2001:470:1:6a4::1) 0.984 ms 1.342 ms 1.667 ms
3 ve1000.core2.lon2.he.net (2001:470:0:680::1) 3.726 ms 6.143 ms 8.513 ms
4 100ge11-2.core1.lon2.he.net (2001:470:0:541::1) 0.340 ms 0.310 ms 0.338 ms
5 linx-lon1.as13335.net (2001:7f8:4::3417:1) 1.193 ms * 1.322 ms
6 2400:cb00:21:3:: (2400:cb00:21:3::) 1.354 ms 2400:cb00:376:3:: (2400:cb00:376:3::) 1.941 ms 2400:cb00:377:3:: (2400:cb00:377:3::) 1.726 ms
7 2400:cb00:377:1024::ac46:58ad (2400:cb00:377:1024::ac46:58ad) 1.151 ms 2400:cb00:373:1024::ac46:a15c (2400:cb00:373:1024::ac46:a15c) 0.794 ms 2400:cb00:377:1024::ac46:58ba (2400:cb00:377:1024::ac46:58ba) 1.104 msHere is the tcpdump output for the traceroute: https://pastebin.com/wbqVhF0p
The IPv6 addresses and gateway are provided by my upstream so I can peer with them and announce my own IPv6 addresses. IPv4 is working fine.
Any ideas why I cant reach the gateway?