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1
Routers / igmp joins are received bot router does not send any multicast
« Last post by j-kwakman on December 12, 2017, 03:54:09 am »
I do receive a igmp message report for a join on the mx routers  interface but no multicast is sent, this is only succeeding when I configure a static join for that group on that interface. I do not have any filters on Routing-engine or interface.
The group which is joined is known on the router, it is statically joined on another interface

I do see this message in the igmp log, but can't find anything on www.
 task IGMP socket 57 length 36 flags MSG_DONTROUTE(4) from 0.0.0.0 to 224.0.0.1 out interface 396 in interface 0: (1 retries) No route to host
2
Remote Access SSL VPN/UAC/MAG, Pulse, and SBR / 5gt l2tp ipsec VPN
« Last post by manwong on December 11, 2017, 02:31:11 am »
Hi everybody


Could Juniper Netscreen 5GT as VPN Gateway (L2TP or L2TP/IPSEC) ?

Internet Machine can register the VPN Gateway
1.) allow to access internal LAN
2.) allow to access internet from internal LAN to WAN

Diagram
Notebook  OS: Windows 10 (a.a.a.a) --- INTERNET --- (a.b.c.d)WAN--5gt--LAN(192.168.1.1/24) ---INTERNAL


please help.


 
3
NetScreen and SSG/ISG Series Firewalls / 5gt elastix sip
« Last post by manwong on December 08, 2017, 09:14:23 am »
Hi everybody

We are configuring Juniper Netscreen 5GT to allow VoIP traffic via elastix PBX

The elastix PBX has local address 192.168.1.8, which I associated with its external IP, a.b.c.d by way of a VIP, on the Juniper.


Diagram

Mobile (a.a.a.a) --- INTERNET --- (a.b.c.d)WAN--5gt--LAN(192.168.1.1/24) ---INTERNAL--- A.) Elastix PBX (192.168.1.8), B.) LinkSys IP Phone (192.168.1.101)



Mobile (a.a.a.a) -- extension (123)
LinkSys IP phone -- extension (456)



Before replace netscreen 5gt

both extension register the elastix PBX successfully.
extension (123) call --> extension (456), ring ok, connect ok, both-way audio ok
extension (456) call --> extension (123), ring ok, connect ok, both-way audio ok


After replace netscreen 5gt
both extension register the elastix PBX successfully.
extension (123) call --> extension (456), ring ok, connect ok, both-way NO audio
extension (456) call --> extension (123), ring ok, connect ok, both-way NO audio
and
drop / disconnect call after 30 - 33 second.



Conf shown below:


unset key protection enable
set clock timezone 8
set clock dst recurring start-weekday 2 0 3 02:00 end-weekday 1 0 11 02:00
set vrouter trust-vr sharable
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
unset auto-route-export
exit
set service "_TOMCAT" protocol tcp src-port 0-65535 dst-port 8080-8080
set service "_SIP" protocol tcp src-port 0-65535 dst-port 5060-5060
set service "_SIP" + udp src-port 0-65535 dst-port 5060-5060
set service "_SIP" + udp src-port 0-65535 dst-port 10000-10030
set service "_SIPS" protocol tcp src-port 0-65535 dst-port 5061-5061
unset alg sip enable
set alg appleichat enable
unset alg appleichat re-assembly enable
set alg sctp enable
set auth-server "Local" id 0
set auth-server "Local" server-name "Local"
set auth default auth server "Local"
set auth radius accounting port 1646
set admin name "netscreen"
set admin password "nKVUM2rwMUzPcrkG5sWIHdCtqkAibn"
set admin auth web timeout 10
set admin auth server "Local"
set admin format dos
set vip multi-port
set zone "Trust" vrouter "trust-vr"
set zone "Untrust" vrouter "trust-vr"
set zone "VLAN" vrouter "trust-vr"
set zone "Untrust-Tun" vrouter "trust-vr"
set zone "Trust" tcp-rst
set zone "Untrust" block
unset zone "Untrust" tcp-rst
set zone "MGT" block
unset zone "V1-Trust" tcp-rst
unset zone "V1-Untrust" tcp-rst
unset zone "VLAN" tcp-rst
set zone "Untrust" screen tear-drop
set zone "Untrust" screen syn-flood
set zone "Untrust" screen ping-death
set zone "Untrust" screen ip-filter-src
set zone "Untrust" screen land
set zone "V1-Untrust" screen tear-drop
set zone "V1-Untrust" screen syn-flood
set zone "V1-Untrust" screen ping-death
set zone "V1-Untrust" screen ip-filter-src
set zone "V1-Untrust" screen land
set interface "trust" zone "Trust"
set interface "untrust" zone "Untrust"
unset interface vlan1 ip
set interface trust ip 192.168.1.1/24
set interface trust nat
set interface untrust ip a.b.c.d/30
set interface untrust route
set interface untrust gateway a.b.c.e
unset interface vlan1 bypass-others-ipsec
unset interface vlan1 bypass-non-ip
set interface trust ip manageable
unset interface untrust ip manageable
set interface untrust vip interface-ip 8080 "_TOMCAT" 192.168.1.60
set interface untrust vip interface-ip 5060 "_SIP" 192.168.1.8
set interface untrust vip interface-ip 5061 "_SIPS" 192.168.1.8
set interface trust dhcp server service
set interface trust dhcp server auto
set interface trust dhcp server option gateway 192.168.1.1
set interface trust dhcp server option netmask 255.255.255.0
set interface trust dhcp server ip 192.168.1.20 to 192.168.1.50
unset interface trust dhcp server config next-server-ip
set flow tcp-mss
unset flow no-tcp-seq-check
set flow tcp-syn-check
unset flow tcp-syn-bit-check
set flow reverse-route clear-text prefer
set flow reverse-route tunnel always
set hostname 090909
set dbuf usb filesize 0
set pki authority default scep mode "auto"
set pki x509 default cert-path partial
set dns host dns1 a.b.c.f src-interface untrust
set address "Trust" "192.168.1.8/32" 192.168.1.8 255.255.255.255
set crypto-policy
exit
set ike respond-bad-spi 1
set ike ikev2 ike-sa-soft-lifetime 60
unset ike ikeid-enumeration
unset ike dos-protection
unset ipsec access-session enable
set ipsec access-session maximum 5000
set ipsec access-session upper-threshold 0
set ipsec access-session lower-threshold 0
set ipsec access-session dead-p2-sa-timeout 0
unset ipsec access-session log-error
unset ipsec access-session info-exch-connected
unset ipsec access-session use-error-log
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
exit
set url protocol websense
exit
set policy id 5 from "Trust" to "Untrust"  "192.168.1.8/32" "Any" "ANY" permit log
set policy id 5
set log session-init
exit
set policy id 1 from "Trust" to "Untrust"  "Any" "Any" "ANY" permit
set policy id 1
exit
set policy id 2 from "Untrust" to "Trust"  "Any" "VIP(untrust)" "_TOMCAT" permit
set policy id 2
exit
set policy id 3 from "Untrust" to "Trust"  "Any" "VIP(untrust)" "_SIP" permit log
set policy id 3
set log session-init
exit
set policy id 4 from "Untrust" to "Trust"  "Any" "VIP(untrust)" "_SIPS" permit log
set policy id 4
set log session-init
exit
set nsmgmt bulkcli reboot-timeout 60
set ssh version v2
set config lock timeout 5
unset license-key auto-update
set telnet client enable
set modem speed 115200
set modem retry 3
set modem interval 10
set modem idle-time 10
set snmp port listen 161
set snmp port trap 162
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
unset add-default-route
exit
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
exit




Please Help.
4
Non-Juniper General Networking / Он опаздывае
« Last post by Ramonstync on December 06, 2017, 09:49:32 pm »
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5
Switches / error juniper ex 8208
« Last post by shisheert on November 27, 2017, 04:03:16 am »
I have two core switches configured in VC.
root@CC-Core-Switch# run show virtual-chassis stat

Preprovisioned Virtual Chassis
Virtual Chassis ID: 52b4.d89c.e8c9
Virtual Chassis Mode: Enabled
                                               Mastership            Neighbor List
Member ID       Status   Serial No    Model    priority    Role      ID  Interface
0 (FPC 0-15)    Prsnt    BT0911165569 ex8208            0  Linecard   8  vcp-0/0
                                                                      1  vcp-0/0/6
                                                                      1  vcp-0/0/7
1 (FPC 16-31)   Prsnt    BT0911045160 ex8208            0  Linecard   9  vcp-0/0
                                                                      0  vcp-0/0/6
                                                                      0  vcp-0/0/7
8 (FPC 128-143) Prsnt    012012000039 ex-xre          129  Master*    0  vcp-1/0
                                                                      9  vcp-2/0
9 (FPC 144-159) Prsnt    012012000038 ex-xre          129  Backup     1  vcp-1/0
                                                                      8  vcp-2/0

i am getting below error:
{master:8}[edit]
root@CC-Core-Switch# commit
warning: communication error while exchanging credentials with member9
warning: Cannot connect to other RE, ignoring it
commit complete

6
NetScreen and SSG/ISG Series Firewalls / DNS A/AAAA no response from Proxy
« Last post by SimonSlaytor on November 26, 2017, 04:52:29 am »
Hi Folks,

My Google foo is lacking as I can find a few reference to my problem but now fix. Hopefully someone here will know the answer.

I have just install an SSG-140 in my home lab, replacing an old NS-50, that is running the latest shinny ScreenOs 6.3r24. This acts as a NAT'ing FW for my network (LAN+DMZ) as the DHCP server and the DNS Proxy. The config was re-built from scratch i.e. not copied from the older 50

My home Lab is IPv4 only, IPv6 is _NOT_ turned on i.e. envar ipv6=no

Since the move to the SSG I'm having an odd DNS issue with my Debian servers. On the Debian box if I do a vanilla DNS lookup I get a 'name resolution failed' style message. However is I force IPv4 i.e. ping -4 www.apple.com everything works a treat!

Having now spent a lengthy amount of time on the problem I can see whats happening, although where the blame lies I cannot say.

Wiresharking the link I see that when the Debian box box does a name query to the SSG everything goes over IPv4 as expected however by default the Debian box makes 2x query's the first is for a standard iPv4 A record the second requesting an IPv6 AAAA record.

In my PCAP I see _NO_ response back at all from the SSG to this query.

When I use the -4 switch on PING in my above example the Debian box now only sends 1x query, this being the standard IPv4 A record. The SSG _DOES_ reply to this query hence name resolution works.

So I've tried everything in the book to disable IPv6 on the Debian host however the default resolver still request a AAAA record which for some reason kills the proxy on the SSG.

I've tried setting envar ipv6=yes then setting alg dns inhibit-aaaa-request  but the SSG still falls silent when presented with the two requests.

As an interim fix I've disabled DNS in ALG and pointed my servers at 8.8.8.8 but I'd prefer to revert back to the internal Proxy.

Any guidance would be greatly appreciated.

Simon
7
Routers / loopback interface in igmp
« Last post by j-kwakman on November 16, 2017, 01:28:56 am »
 When configuring the loopback interface in IGMP with a static join the interface is not shown in " show igmp interface" and the group is not shown in "show igm groups". How is that possible.

See config and show commands below

set protocols igmp interface xe-0/3/1.100 version 2
set protocols igmp interface xe-0/3/1.100 static group 239.232.0.1
set protocols igmp interface xe-0/3/1.100 static group 239.232.0.2
set protocols igmp interface xe-0/3/1.100 immediate-leave
set protocols igmp interface xe-0/3/1.100 promiscuous-mode
set protocols igmp interface lo0.0 version 2
set protocols igmp interface lo0.0 static group 239.232.0.3
set protocols igmp interface lo0.0 promiscuous-mode

set interfaces lo0 unit 0 family inet filter input RE-protect-BRAS
set interfaces lo0 unit 0 family inet filter output RE-QoS-out
set interfaces lo0 unit 0 family inet address 127.0.0.1/32
set interfaces lo0 unit 0 family inet address 10.62.0.1/32
deactivate interfaces lo0 unit 0 family inet address 10.62.0.1/32
set interfaces lo0 unit 0 family inet address 87.210.169.1/32
set interfaces lo0 unit 0 family inet address 217.16.40.242/32 primary
set interfaces lo0 unit 0 family iso address 31.0101.0060.0000.0001.00

j-kwakman@bras05campus> show igmp group
Interface: xe-0/3/1.100, Groups: 2
    Group: 239.232.0.1
        Source: 0.0.0.0
        Last reported by: Local
        Timeout:       0 Type: Static
    Group: 239.232.0.2
        Source: 0.0.0.0
        Last reported by: Local
        Timeout:       0 Type: Static
Interface: local, Groups: 3
    Group: 224.0.0.2
        Source: 0.0.0.0
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: 224.0.0.13
        Source: 0.0.0.0
        Last reported by: Local
        Timeout:       0 Type: Dynamic
    Group: 224.0.0.22
        Source: 0.0.0.0
        Last reported by: Local
        Timeout:       0 Type: Dynamic

j-kwakman@bras05campus> show igmp interface
Interface: xe-0/2/0.0
    Querier: 10.71.1.1
    State:         Up Timeout:     231 Version:  2 Groups:      0
    Immediate leave: Off
    Promiscuous mode: Off
    Passive: Off
Interface: xe-0/3/1.100
    Querier: 217.16.40.242
    State:         Up Timeout:    None Version:  2 Groups:      2
    Immediate leave: On
    Promiscuous mode: On
    Passive: Off

Configured Parameters:
IGMP Query Interval: 100.0
IGMP Query Response Interval: 10.0
IGMP Last Member Query Interval: 25.0
IGMP Robustness Count: 3

Derived Parameters:
IGMP Membership Timeout: 310.0
IGMP Other Querier Present Timeout: 305.0
8
Suggestions/Feedback / Testing
« Last post by signal15 on November 15, 2017, 11:53:13 am »
Test
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