Fix:Unable to ping veth device on proxmox

Virtual Ethernet devices of the OpenVZ VM’s inside ProxMox is connected to a bridge. After installing ProxMox and creating virtual nodes, I found that public ips allocated inside VM’s were not reachable to world.

A quick fix for this issue is to ensure that Proxy ARP and IP Forwarding is configured fine.

Check these lines:

# ifconfig vzbr0 0
# echo 1 > /proc/sys/net/ipv4/conf/vzbr0/forwarding
# echo 1 > /proc/sys/net/ipv4/conf/vzbr0/proxy_arp

You can read more information about OpenVZ Virtual Ethernet devices in bridge mode configuration check this link.

2 Responses to “Fix:Unable to ping veth device on proxmox”

    • Directly execute these lines on console of the server. No need to edit any lines.

      Reply

Leave a Reply

XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>