I just spent some time figuring out why the hell VMware guest networking (all virtual machines, Windows and Linux) just stopped working! I couldn’t remember to have anything changed except a kernel update on the host system, but the VMware kernel module compiled fine against it, and also the VMware services are running as they should.<\/p>\n
I’m usually configuring my VMs to have access to the outside world via VMware’s NAT feature, which always worked fine for me.
\nWhile analysing the problem, I found out that the default NAT network address is 10.0.0.0 (on interface vmnet8). Now guess what happened! Some tomfool over at my ISP configured a host to have the IP address 10.0.0.1, which is handed out by the VMware DHCP service as the default gateway to all VMs. I found that out by running a traceroute on 10.0.0.1, which gave me several hops to a host, probably belonging to my ISP. The workaround is simple: just add the network address of the NAT interface (vmnet8) on the host. This can be done with vmware-config.pl on Linux hosts, and I’m sure there is also a way to do that on Windows hosts. I set it to a 192.168.x.y address, which works well now.
\nI really wonder how this could have happend – I always believed that the 10.x.y.z addresses aren’t being routed! Then why is this D-Link router AND the DSL router\/modem combo in this flat routing requests to 10.0.0.1 to the Internet? Anyone?<\/p>\n","protected":false},"excerpt":{"rendered":"
I just spent some time figuring out why the hell VMware guest networking (all virtual machines, Windows and Linux) just stopped working! I couldn’t remember to have anything changed except a kernel update on the host system, but the VMware kernel module compiled fine against it, and also the VMware services are running as they … Continue reading “VMware guest networking just stopped working [solved]”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-43","post","type-post","status-publish","format-standard","hentry","category-virtualisation"],"_links":{"self":[{"href":"https:\/\/patrick-nagel.net\/blog\/wp-json\/wp\/v2\/posts\/43","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/patrick-nagel.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/patrick-nagel.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/patrick-nagel.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/patrick-nagel.net\/blog\/wp-json\/wp\/v2\/comments?post=43"}],"version-history":[{"count":0,"href":"https:\/\/patrick-nagel.net\/blog\/wp-json\/wp\/v2\/posts\/43\/revisions"}],"wp:attachment":[{"href":"https:\/\/patrick-nagel.net\/blog\/wp-json\/wp\/v2\/media?parent=43"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/patrick-nagel.net\/blog\/wp-json\/wp\/v2\/categories?post=43"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/patrick-nagel.net\/blog\/wp-json\/wp\/v2\/tags?post=43"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}