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A comment on CenturyLink 911 outage was caused by a single network card sending bad packets. Parent comment

Re:CenturyLink 911 outage was caused by a single network car... by tyingq on Sunday December 30, 2018 @10:42AM (#18789639)
One example might be "ip helper" setups in a Cisco router. People use it to forward DHCP requests over a WAN. One broken SIP device, no flood control, and...bam, your WAN is hosed.
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Re:CenturyLink 911 outage was caused by a single network car... by packet_nerd on Sunday December 30, 2018 @06:05PM (#18791873)
Ip helper usually only shows up in the context of DHCP so its easy to forget it forwards a lot more than just DHCP broadcasts.
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