Re: [Discuss] System receiving incorrect IP address

2020-10-21 Thread epp
On Wed, 21 Oct 2020 21:47:16 -0400 wor...@alum.mit.edu (Dale R. Worley) wrote: > People have said that Mac addresses cannot be spoofed, but I've > discovered that they can be on some NICs. Indeed, the first time I > tried it, I was surprised that it worked and even more surprised that > when I po

Re: [Discuss] System receiving incorrect IP address

2020-10-21 Thread David Rosenstrauch
On 10/21/20 9:47 PM, Dale R. Worley wrote: People have said that Mac addresses cannot be spoofed, but I've discovered that they can be on some NICs. IIRC, you're not actually changing the mac address on the NIC, but rather you're telling the Linux networking stack to use a mac other than t

Re: [Discuss] System receiving incorrect IP address

2020-10-21 Thread Dale R. Worley
People have said that Mac addresses cannot be spoofed, but I've discovered that they can be on some NICs. Indeed, the first time I tried it, I was surprised that it worked and even more surprised that when I power-cycled the card, it kept the new Mac address -- so I should have written down the or

Re: [Discuss] System receiving incorrect IP address

2020-10-12 Thread epp
On Mon, 12 Oct 2020 16:49:16 -0400 Rich Pieri wrote: > On Mon, 12 Oct 2020 16:09:27 -0400 > wrote: > > > The other desktop (I'll call it Desktop 2.) is not receiving the > > correct IP address. It, along with Desktop 1 were connected to a > > T-Mobile/ASUS router that was being used as a switch

Re: [Discuss] System receiving incorrect IP address

2020-10-12 Thread Jerry Feldman
Go into network settings, IPV4, make sure the setting is DHCP (automatic). as well as automatic for DNS and routes. Do the same for IPV6. I am assuming you only have 1 network interface. And, as you mentioned, your MAC address cannot be spoofed. On Mon, Oct 12, 2020 at 5:00 PM wrote: > > > What

Re: [Discuss] System receiving incorrect IP address

2020-10-12 Thread Jerry Feldman
Do you have 2 network interfaces on your computer. -- Jerry Feldman Boston Linux and Unix http://www.blu.org PGP key id: 6F6BB6E7 PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1 3050 5715 B88D 6F6 B B6E7 On Mon, Oct 12, 2020, 5:00 PM wrote: > > > What I have tried so far, without success: > > >

Re: [Discuss] System receiving incorrect IP address

2020-10-12 Thread epp
> What I have tried so far, without success: > > * dhclient -r > * ip addr flush dev > * dhclient > * assigned an IP address in the gateway > * repeated reboots of system Also changed hostname, no luck. Gateway subnet mask shows 255.255.255.0, same subnet showing in Network Manager. Probably

Re: [Discuss] System receiving incorrect IP address

2020-10-12 Thread Rich Pieri
On Mon, 12 Oct 2020 16:09:27 -0400 wrote: > The other desktop (I'll call it Desktop 2.) is not receiving the > correct IP address. It, along with Desktop 1 were connected to a > T-Mobile/ASUS router that was being used as a switch. Desktop 1 and Is this device still on your network and providing

Re: [Discuss] System receiving incorrect IP address

2020-10-12 Thread Jerry Feldman
IP addresses are assigned by DHCP. The DHCP server, your gateway will try to send you the same ip address based on your Mac address. One solution is to plug the xat5 cable into the other port on the computer as it will have a different Mac address. In general, your Mac address is gard wired into yo

[Discuss] System receiving incorrect IP address

2020-10-12 Thread epp
Next problem... :( The other desktop (I'll call it Desktop 2.) is not receiving the correct IP address. It, along with Desktop 1 were connected to a T-Mobile/ASUS router that was being used as a switch. Desktop 1 and WiFi-connected phone, correctly went through the router/switch and received an I