Re: Squid as default gateway in proxy mode.
On Sat, 14 Apr 2012 12:40:26 +0200
Pascal Hambourg <email@example.com> wrote:
> Joe wrote :
> > only TCP and UDP have 'ports'
> No. ICMP does not have ports, but other protocols such as SCTP and
> DCCP have ports too.
Yes, I do realise there are others, but they are not among the
half-dozen or so which are likely to be encountered by someone new to
iptables, only two of which use the concept of ports. It is easy for
someone accustomed to getting Windows games working through routers to
assume that all IP protocols use ports.