[denisz]

kim-aa, я только вчера о Вас вспоминал. Я просил у Вас в icq поделиться документацией по Juniper где-то год (!) назад. Вчера я вспомнил, что Вы мне эту документацию высылали. И я ее долго искал и нашел Прочитал еще раз. И вот Вы тут )) Неожиданно))
А по теме:
- начертил схему в кореле. Сто лет не юзал корел - извиняюсь
- конфиг прилагаю. Он у всех офисов по идее одинаковый. В данном примере конфиг от Джунипера 192.168.5.1/24
- куда и как цеплять сервер с ISA Server 192.168.4.254/24, который натит и управляет трафиком всех офисов?

Код:

version 10.4R6.5;
system {
    host-name gw5;
    domain-name local.int;
    root-authentication {
        encrypted-password "12345"; ## SECRET-DATA
    }
    name-server {
	192.168.5.2;
        192.168.4.2;
    }
    login {
        user admin {
            uid 2000;
            class super-user;
            authentication {
                encrypted-password "12345"; ## SECRET-DATA
            }
        }
    }
    services {
        ssh;
    }
    syslog {
        archive size 100k files 3;
        user * {
            any emergency;
        }
        file messages {
            any critical;
            authorization info;
        }
        file interactive-commands {
            interactive-commands error;
        }
    }
    max-configurations-on-flash 5;
    max-configuration-rollbacks 20;
    license {
        autoupdate {
            url https://ae1.juniper.net/junos/key_retrieval;
        }
    }
    ntp {
        server 192.168.4.2;
    }
}
interfaces {
    interface-range interfaces-trust {
        member fe-0/0/1;
        member fe-0/0/2;
        member fe-0/0/3;
        member fe-0/0/4;
        member fe-0/0/5;
        member fe-0/0/6;
        member fe-0/0/7;
        unit 0 {
            family ethernet-switching {
                vlan {
                    members vlan-trust;
                }
            }
        }
    }
    fe-0/0/0 {
        unit 0 {
            family inet {
                address 192.168.5.1/24;
            }
        }
    }
    st0.0 {
        unit 0 {
            family inet {
                address 10.0.0.5/24;
            }
        }
    }
    st0.1 {
        unit 0 {
            family inet {
                address 10.0.0.5/24;
            }
        }
    }
    vlan {
        unit 0 {
            family inet {
                address 192.168.5.1/24;
            }
        }
    }
}
routing-options {
    static {
        route 0.0.0.0/0 next-hop 192.168.4.254;
        route 172.16.4.0/24 next-hop st0.0;
        route 172.16.6.0/24 next-hop st0.1;
    }
}
protocols {
    stp;
}
security {
    ike {
        traceoptions {
            flag all;
            flag policy-manager;
            flag ike;
            flag routing-socket;
        }
        proposal P1-AES {
            authentication-method pre-shared-keys;
            dh-group group2;
            authentication-algorithm sha1;
            encryption-algorithm aes-128-cbc;
        }
        policy ike-policy-1 {
            mode main;
            proposals P1-AES;
            pre-shared-key ascii-text "12345"; ## SECRET-DATA
        }
        gateway gw1 {
            ike-policy ike-policy-1;
            address 192.168.5.1;
            external-interface fe-0/0/0.0;
        }
    }
    ipsec {
        proposal P2-AES {
            protocol esp;
            authentication-algorithm hmac-sha1-96;
            encryption-algorithm aes-128-cbc;
        }
        policy ipsec-policy-1 {
            perfect-forward-secrecy {
                keys group2;
            }
            proposals P2-AES;
        }
        vpn vpn1 {
            bind-interface st0.0;
            ike {
                gateway gw1;
                proxy-identity {
                    local 192.168.4.0/24;
                    remote 192.168.5.0/24;
                    service any;
                }
                ipsec-policy ipsec-policy-1;
            }
            establish-tunnels immediately;
        }
	vpn vpn2 {
            bind-interface st0.0;
            ike {
                gateway gw1;
                proxy-identity {
                    local 192.168.6.0/24;
                    remote 192.168.5.0/24;
                    service any;
                }
                ipsec-policy ipsec-policy-1;
            }
            establish-tunnels immediately;
        }
    }
    nat {
        source {
            rule-set trust-to-untrust {
                from zone trust;
                to zone untrust;
                rule source-nat-rule {
                    match {
                        source-address 0.0.0.0/0;
                    }
                    then {
                        source-nat {
                            interface;
                        }
                    }
                }
            }
        }
    }
    screen {
        ids-option untrust-screen {
            icmp {
                ping-death;
            }
            ip {
                source-route-option;
                tear-drop;
            }
            tcp {
                syn-flood {
                    alarm-threshold 1024;
                    attack-threshold 200;
                    source-threshold 1024;
                    destination-threshold 2048;
                    timeout 20;
                }
                land;
            }
        }
    }
    zones {
        security-zone trust {
            host-inbound-traffic {
                system-services {
                    all;
                }
                protocols {
                    all;
                }
            }
            interfaces {
                vlan.0;
            }
        }
        security-zone untrust {
            screen untrust-screen;
            interfaces {
                fe-0/0/0.0 {
                    host-inbound-traffic {
                        system-services {
                            dhcp;
                            tftp;
                        }
                    }
                }
                fe-0/0/1.0;
            }
        }
    }
    policies {
        from-zone trust to-zone untrust {
            policy trust-to-untrust {
                match {
                    source-address any;
                    destination-address any;
                    application any;
                }
                then {
                    permit;
                }
            }
            policy policy-name {
                match {
                    source-address any;
                    destination-address any;
                    application any;
                }
                then {
                    permit;
                }
            }
        }
    }
}
vlans {
    vlan-trust {
        vlan-id 3;
        l3-interface vlan.0;
    }
}