[Firehol-support] incoming requests from dsl modem?

Costa Tsaousis costa at tsaousis.gr
Sun Feb 13 18:29:56 GMT 2005


> I have 2 questions- the first is what does HOL in fireHOL mean?

It means Hellas On Line. It is the company I work for. I originally wrote
FireHOL as a firewall configuration tool for my system engineers.

> The second is that I have 2 incoming requests from the dsl modem
> every 30 secs or so and I'm not sure if they're important?
> Feb 12 22:01:24 hostname IN-world:IN=eth0 OUT= MAC=<snip>
> SRC= DST= LEN=92 TOS=0x00 PREC=0x00

This is an ICMP Echo Request (normally a request for ping), sent from to

> Feb 12 22:01:40 hostname IN-world:IN=eth0 OUT= MAC=<snip>
> SRC= DST= LEN=576 TOS=0x00 PREC=0x00
> TTL=64 ID=36297 PROTO=UDP SPT=67 DPT=68 LEN=556

This is a DHCP Reply (client to server

> I say it's my dsl modem because when I open in a web
> browser it's the config page for the modem.

I guess you have a DSL router, not modem. This router is trying to reach
the host via your linux. If you use this device as a router
and the IP is not yours, I would say that it has a wrong
routing table.


More information about the Firehol-support mailing list