Avaya Business Secure Router 222 Configuration - Basics Instrukcja Użytkownika Pobierz pdf (Strona 177)

100

101

Chapter 11 Firewall screens 177

Nortel Business Secure Router 222 Configuration — Basics

If you list a general rule before a specific rule, traffic that you want to be

controlled by the specific rule can get the general rule applied to it instead. Any

traffic that does not match the first firewall rule matches the default rule and the

Business Secure Router forwards the traffic.

Note: If an alternate gateway on the LAN has an IP address in the same

subnet as the Business Secure Router’s LAN IP address, return traffic

does not go through the Business Secure Router. This is called an

asymmetrical or triangle route, and causes the Business Secure Router to

reset the connection, as the connection has not been acknowledged.

Note: Allowing asymmetrical routes can let traffic from the WAN go

directly to the LAN without passing through the Business Secure Router.

A better solution is to use IP alias to put the Business Secure Router and

the backup gateway on separate subnets. See the Appendix B “Triangle

Route” of Nortel Business Secure Router 222 Configuration —

Advanced (NN47922-501) for more about triangle route topology.

1 2 ... 172 173 174 175 176 177 178 179 180 181 182 ... 450 451

Komentarze do niniejszej Instrukcji

Brak uwag

Avaya Business Secure Router 222 Configuration - Basics Instrukcja Użytkownika Strona 177

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Routery Avaya Business Secure Router 222 Configuration - Basics