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Have no idea what’s going on with my network

i-ofthetiger
Level 1
Level 1

Hi guys.

 

firstly can anyone make head or tail of what is going on with ipv4 and ipv6 and explain it to me in the most basic way. I’m not a Cisco user but I have a problem and need some advice.

 

Below I’ve posted a summary of what’s happening inside my network at the moment. I just want a lamens term explanation of what is going on.

 

also can you tell me from this if I am on a static IP or dynamic IP

 

Sorry it’s a bit vague but I just don’t know what’s going on.

 

I think it’s a result of Linux commands.

 

not sure though.

 

Interfaces:


dummy0
MAC: a2:4e:97:92:87:e9


sit0


p2p0
MAC: d6:0b:1a:5e:0f:74


lo
IPv6: ::1
IPv4: 127.0.0.1


rmnet_usb0
MAC: a2:4c:70:ae:34:fe


wlan0
IPv6: fdaa:bbcc:ddee:0:6897:ff42:1f05:e3c3
IPv6: 2a00:23c4:4f0f:a200:6897:ff42:1f05:e3c3
IPv6: 2a00:23c4:4f0f:a200:d60b:1aff:fe5e:f74
IPv6:

fe80::d60b:1aff:fe5e:f74
IPv6:

fdaa:bbcc:ddee:0:d60b:1aff:fe5e:f74
IPv4:

192.168.1.68
MAC: d4:0b:1a:5e:0f:74


Bytes: 90,609 IN, 21,450 OUT
Packets: 163 IN, 215 OUT


rev_rmnet0
MAC: ce:ff:22:0b:02:ae
rev_rmnet1
MAC: fa:54:aa:ee:f9:47
rev_rmnet6
MAC: 06:1f:05:28:38:6e
rev_rmnet5
MAC: ce:a1:eb:f5:32:72
rev_rmnet7
MAC: d6:ba:ad:44:3d:99
rev_rmnet3
MAC: ca:a5:b8:fc:03:3d
rev_rmnet2
MAC: e6:09:ee:80:a1:5f
rev_rmnet4
MAC: 2a:96:f2:26:e3:65
rev_rmnet8
MAC: 0a:c5:be:1c:de:b0
rmnet0
rmnet1
rmnet6
rmnet5
rmnet7
rmnet3
rmnet2
rmnet4

 

Ipv4 Routes:


192.168.0.0/255.255.0.0 dev wlan0

 

192.168.1.254/255.255.255.255 dev wlan0

 

default via 192.168.1.254 dev wlan0

 

IPv6 Routes:


2a00:1450:4009:809::200a/128 via fe80::42c7:29ff:fe17:7c25 dev wlan0

 

2a00:1450:4009:80a::2004/128 via fe80::42c7:29ff:fe17:7c25 dev wlan0

 

2a00:1450:4009:80a::200e/128 via fe80::42c7:29ff:fe17:7c25 dev wlan0

 

2a00:1450:4009:80c::200a/128 via fe80::42c7:29ff:fe17:7c25 dev wlan0

 

2a00:1450:400c:c09::bc/128 via fe80::42c7:29ff:fe17:7c25 dev wlan0

 

2a00:1450:4010:c0d::bc/128 via fe80::42c7:29ff:fe17:7c25 dev wlan0

 

2a00:23c4:4f0f:a200:6897:ff42:1f05:e3c3/128 dev lo

 

2a00:23c4:4f0f:a200::/64 dev wlan0

 

2a00:23c4:4f0f:a200:d60b:1aff:fe5e:f74/1

28 dev lo

 

::1/128 dev lo


default dev lo


default via fe80::42c7:29ff:fe17:7c25 dev wlan0

 

fdaa:bbcc:ddee:0:6897:ff42:1f05:e3c3/128 dev lo


fdaa:bbcc:ddee:0:d60b:1aff:fe5e:f74/128 dev lo


fdaa:bbcc:ddee::/64 dev wlan0

 

fe80::/64 dev wlan0

 

fe80::d60b:1aff:fe5e:f74/128 dev lo

 

ff00::/8 dev wlan0

 

ff02::1/128 dev wlan0

 

ff02::1:ff05:e3c3/128 dev wlan0

 

Wifi connection:

AP(BSSID): 40:c7:29:17:7c:28
Name(SSID): "BTHub6-MX3S"
Signal(Rssi): -70
IP: 192.168.1.68
Netmask: 0.0.0.0
Gateway: 192.168.1.254
Dns1: 8.8.8.8
Dns2: 0.0.0.0
Dhcp Server: 0.0.0.0
Lease duration: 0s

Sockets Information:
sockets: used 211
TCP: inuse 0 orphan 0 tw 2 alloc 1 mem 1
UDP: inuse 0 mem 0
UDPLITE: inuse 0
RAW: inuse 0
FRAG: inuse 0 memory 0

1 Reply 1

Phillip Remaker
Cisco Employee
Cisco Employee

I don't know exactly what you are asking for, but let me summarize what I see.

 

interfaces dummy0 sit 0 (tunnel), p2p0 (point to point) are not in use and can be ignored.

 

lo is the loopback, and those addresses are standard and correct.

 

rmnet_usb0 is packet-over USB. It's not in use.

 

wlan0 is your wireless. The IPv6 addresses are:
fdaa:*:e3c3 - This is a Unique Local Address (ULA), generated by the device for itself, using the same host address as the global privacy address.
2a00:*:e3c3 - This is a dynamically assigned global privacy address, which changes from time to time to preserve privacy.

2a00:*:f74 - This is a self-generated IPv6 address based on the MAC address. You will answer on that address, but generally not send on it since it shows your identity.

fdaa:*:f74 - This is the corresponding ULA for the IPv6 address based on the MAC address.

 

The 2a00 (global) addresses are assigned when a router announces the network number to the hosts.

 

The ULA addresses are generated even if there is no global address learned from the router.

 

The fe80:*:f74 address is a Link-Local address, used to communicate between devices on the same LAN that don't need to be routed.

 

The rmnet/rev_rmnet interfaces are cellular network interfaces. I'm guessing this is an Android phone.

 

The next-hop router in the Wi-Fi is fe80::42c7:29ff:fe17:7c25. Looks like all outbound IPv6 traffic is heading that way.

 

What more do you want to know?

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