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client routing complette

ITz
2019-12-24 18:59:06 +03:00
parent 3367d4f4fd
commit c7a0e90171
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101
How-to-use-glorytun-with-2-isp-(draft).md

@@ -72,4 +72,105 @@ iptables -I FORWARD -i tun0 -o eth0 -j ACCEPT
## **Client side:**
Now, we need to configure Ubuntu OS to using 2 ISP, for this we turn to LARTC (Linux Advanced Routing & Traffic Control), there are many different articles on this topic on the Internet, i will give one worked example of this configuration
1) edit file **/etc/iproute2/rt_tables** and adding two lines about our 2 ISP in system route table,
you may use pre-installed in Ubuntu **nano editor** for edit files, with this command:
`nano /etc/iproute2/rt_tables`
```
#
# reserved values
#
#255 local
#254 main
#253 default
#0 unspec
101 isp1 #<---------add this string to file rt_tables
102 isp2 #<---------add this string to file rt_tables
```
after edit, for save file press keyboard shortcut **Ctrl+O**, and **Ctrl+X** for exit, it's simple!
2) create this script for builds a traffic routing table:
`nano /root/dual_isp.sh`
note: you may copy & paste this script with Bitvise SSH Client from Windows OS to Ubuntu OS, directly in Nano editor window
```
#script path: /root/dual_isp.sh
#script for dual isp connection (linux, ubuntu, debian)
#!/bin/sh
#!/bin/bash
# LAN interface
IF0="enp2s0"
# ISP interface 1
IF1="enp6s0"
# ISP interface 2
IF2="enp6s1"
# IPv4 addresses from ISP interfaces, IP1 for ISP1(IF1) and IP2 for ISP2(IF2), offered by DHCP from isp routers..
IP1="192.168.1.100"
IP2="192.168.2.100"
# gateway 1 of ISP1(IF1)
P1="192.168.1.1"
# gateway 2 of ISP2(IF2)
P2="192.168.2.1"
# LAN netmask of LAN
P0_NET="10.10.10.0/24"
# WAN1 netmask of ISP1(IF1)
P1_NET="192.168.1.0/24"
# WAN2 netmask of ISP2(IF2)
P2_NET="192.168.2.0/24"
#this settings from /etc/iproute2/rt_tables file
TBL1="isp1"
TBL2="isp2"
#also i recommend permanently enable ip v4 forwarding with edit file /etc/sysctl.conf
echo "1" > /proc/sys/net/ipv4/ip_forward
ip route add $P1_NET dev $IF1 src $IP1 table $TBL1 > /dev/null 2>&1
ip route add default via $P1 table $TBL1 > /dev/null 2>&1
ip route add $P2_NET dev $IF2 src $IP2 table $TBL2 > /dev/null 2>&1
ip route add default via $P2 table $TBL2 > /dev/null 2>&1
ip route add $P1_NET dev $IF1 src $IP1 > /dev/null 2>&1
ip route add $P2_NET dev $IF2 src $IP2
#adding default gateway only with ISP1 and it's normal..
ip route add default via $P1 > /dev/null 2>&1
ip rule add from $IP1 table $TBL1 > /dev/null 2>&1
ip rule add from $IP2 table $TBL2 > /dev/null 2>&1
ip route add $P0_NET dev $IF0 table $TBL1 > /dev/null 2>&1
ip route add $P2_NET dev $IF2 table $TBL1 > /dev/null 2>&1
ip route add 127.0.0.0/8 dev lo table $TBL1 > /dev/null 2>&1
ip route add $P0_NET dev $IF0 table $TBL2 > /dev/null 2>&1
ip route add $P1_NET dev $IF1 table $TBL2 > /dev/null 2>&1
ip route add 127.0.0.0/8 dev lo table $TBL2 > /dev/null 2>&1
#masqarade local (lan) traffic to both isp, iptables rules
iptables -t nat -F POSTROUTING
iptables -t nat -A POSTROUTING -s $P0_NET -o $IF1 -j MASQUERADE
iptables -t nat -A POSTROUTING -s $P0_NET -o $IF2 -j MASQUERADE
```
after edit, for save file press keyboard shortcut **Ctrl+O**, and **Ctrl+X** for exit
then make our script executable:
`chmod +x dual_isp.sh`
and run it with this command:
`./dual_isp.sh`
**at this stage, we have completed the preparation Ubuntu OS on the client and proceed to install and configure Glorytun**
# ### soon