Security Measures on the TELUS ADSL high speed Network
TELUS has introduced a number of security measures to the ADSL network to help provide you with a safe, enjoyable Internet experience. These measures will help reduce the risk of virus infection to your PC, reduce spam in your e-mail, and increase network integrity.
NOTE: These security measures do not apply to static IP subscribers.
These security measures include:
The blocking of the following ports to inbound traffic. This helps to secure your PC from virus and hacker activity, as well as spam.
TCP 21 (ftp)
TCP 25 (smtp)
TCP 80 (www)
TCP 110 (pop3)
TCP 6667 (ircd)
TCP/UDP 135-139 (dcom and netbios)
TCP/UDP 443 (ssl)
TCP/UDP 445 (ms-ds)
TCP/UDP 1433-1434 (ms-sql)
Limiting of ICMP traffic to prevent DoS (Denial of Service) attacks and other unnecessary network traffic. This reduces general network traffic and prevents service degradation and possible outages.
Blocking outbound traffic on port 25 (smtp), except to the outgoing TELUS e-mail server. This is to reduce the amount of spam created on our network which prevents service degradation and possible outages as well as to reduce the amount of spam you receive in your e-mail.